Riven

Deceptively tough lane just because of how broken Riven is. She never runs out of dashes and can pull of some truly bs maneuvers meaning you need to play twice as smart to beat her. Flay will interrupt one dash though she will have three more. Q can be used to interrupt her combo. The reason this matchup isn't a 5 is due to her being 100% physical damage which Thresh will hard counter with enough souls.

Dr. Mundo

Thresh can avoid a lot of bad trades with Mundo by standing in the minion wave, blocking his Q. Auto him fairly frequently so he's too low hp to run at you and win. You can't overextend vs him post 6 as he can run you down. Thresh should beat him in teamfights by being more useful - although significantly squishier.

Fiora

Ugly matchup. A good Fiora will parry every single time you use Q or E since both of these abilities are pretty telegraphed and easy to predict (particularly Q). The good news is Fiora's ult is soft countered by The Box - massive slow vs massive ms boost. The downside is it's very hard to trade with her outside of turret and she can effectively freeze the wave while you cannot. She also outscales and lawnmows turrets. I'm probably going to start banning her because she is that annoying.

Aatrox

You can't beat him. Just survive. He will hit you a lot so bramble vest will help reduce that healing. The good news is while his lane is brutal, its almost exclusively physical damage which Thresh scales well against. As a result, you are probably stronger in teamfights than him with plenty of disruption to lock Aatrox down.

Poppy

Poppy can be challenging because of her high amount of crowd control, tankiness, and damage. Don't force too many trades and avoid getting knocked into a wall and destroyed. She can pull off some frustrating towerdives.

Gnar

Gnar is a pretty annoying champion with plenty of mobility, damage, and crowd control. He's also tanky. His ult can throw you out of your tower so be mindful of that. He mostly does physical damage so stack armor.

Kayle

She's like a ranged Nasus in terms of how playable she is for tanks.

Pre-6 she is absurdly weak and you can bonk her whenever you want. Post-6 she gains a huge amount of range and sustained damage making the lane very hard. Q destroys her entire kit. She will scale but does no true damage so anathemas is extremely good here.

Darius

Darius is difficult because you'll never be able to fight him after lvl 2 (assuming he levels his E. If he doesn't then lvl 3), regardless of your build or how ahead you are. His stats are better than yours, his pull is difficult to dodge (and gives armor pen), his Q allows him to potentially survive dives, and he'll zone you off of cs 24/7. While you do outrange him you can only poke very early on (lvl 1-2) and when his E is down. Still, he can Q in the middle of your auto and win the trade.

This matchup is a 5 if he takes ghost and a 4 if he does not. He's never worth a ban because he's not Fiora and can be shut down with crowd control.

Garen

Garen is pretty weak in the earlygame. You can bully him hard during this time, just auto him constantly and flay when he tries to Q you. He has an annoying interaction where he can Q even if you flay him a second too late so keep that in mind. His W soft counters your crowd control, although he can only cleanse one of the slows (from E & R) not both.

His ult will do a lot of true damage and this is why he is a 2 and not a 1. The main threat of Garen is he can always win a 1v1 if he is able to press R on you. Flay him away or box to make him useless in every teamfight.

Tryndamere

Tryndamere's annoying because he can spin on you and chunk a lot of hp with his autos (especially if he crits). He also has a pretty good heal that allows him to survive most of your poke. Still, you beat him very hard early (like Garen) so poke him constantly and flay whenever he tries to go in. Once he's 6 ult and flay him away. Then re-engage once his ult is down - or is about to run out - and kill him. He's a splitpusher so you want to get significantly ahead so he can't powerfarm and catch up.

Grasp or aftershock build with bone plating works fine. Build a frozen heart and thornmail. They will block a lot of his auto damage, reduce his attack speed, reduce his Q healing, and give you CDR to deal with his low spin CD (from navori quickblade). Anathema's is really good here.

Gangplank

Complete cancer. Maybe there is a way to play this but I don't know of one. I'd just dodge because I hate this champion and don't understand why Riot buffed him.

Kennen

Kennen lane can be hard but it's also winnable. He's fairly squishy and can be poked down with autos. The most annoying thing is his stun which, on top of his mobility, can make it hard to Q/Flay him. His ult is better than your ult and so items like Knight's Vow and Mikaels are advisable later in the game.

Olaf

Olaf kind of just runs at you and kills you and there's not much you can do about it. Unplayable lane after lvl 6 and you should dodge.

Yasuo

Thresh/Yasuo is a skill matchup. His windwall counters your hook but can't block your autos, allowing you to poke him constantly. He has armor penetration from his ult and his passive can block a lot of damage early on. But you can cancel his dashes with flay and hook (if he's not expecting it) and he has no way to block your R damage - or slow. If either of you gets ahead it's very hard for the other to come back.

Malphite

Malphite is a melee tank with one poke ability - his Q. This will do strong poke and combined with his speed boost, is oppressive to play against. You'll need to take MR shard and second wind to deal with it. His ult is better than your ult and is the main reason he's a 4 on the threat level. Knight's vow/Redemption can be good for handling him.

Mordekaiser

Mordekaiser is annoying for Thresh to deal with. He is just as tanky, does more damage, and is hard to itemize against. He is also difficult to gank post 6 and can force you to trade with him via his E (which also gives him magic pen) or his point and click 650 range ult. Poke him early levels in between his Q and E and ask for a gank. Ult when he ults, it will keep him away from you allowing you to survive. He's like the AP version of Darius, but with lower kill potential.

Knight's Vow can be good against him since it should mitigate damage allies take in the Death Realm.

Renekton

Thresh has some outplay potential on Renekton. His dash animation is extremely fast but if you anticipate it you can deny his entire engage. Your autos slightly outrange his Q and Renekton is very weak level 1. You can poke him a bit during this time. At lvl 2 he wins all trades unless you flay the engage. Thresh will aftershock will beat him but grasp Thresh can do so as well (although it is riskier given the lack of defenses for his engage). Bone plating is essential to mitigating his engage.

The main thing about this matchup is denying him early kills. If Renekton can't pop off early then Thresh outscales him in the fights.

Jax

Jax is very hard to solo lane against if he's good. Thanks to recent buffs lowering his counterstrike and leap cooldowns he'll jump on you constantly and force unfavorable trades. Poke him when he's weakest, lvl 1-3, and play very carefully afterwards. Stay out of his melee range at all costs which you can do with flay.

Anathemas and frozen heart are extremely strong vs this champion.

Illaoi

You can't 1v1 her at any point but it's not the worst. Illaoi lacks any mobility and her spirit idol can be blocked by minions. Your cc can potentially interrupt her ult. Anathemas and thornmail are both very good items here. Redemption is not bad either since the AoE heal soft counters her AoE ult.

Sion

Sion will always be tankier than you, do a lot of damage, and generally be hard to kill. His lane is not particularly oppressive, however. Thresh can interrupt Sion's Q, can avoid Sion's W, and is usually out of range to avoid being punished by Sion's E. He's also free grasp stacks.

Ganks at lvl 6 can be hard because he'll press R and run away. Punish him if he greeds for tower plating. He outscales pretty hard and you can't 1v1 him after about 15-20 minutes depending on the build and the game. Anathemas is a nice item vs him. Redemption and KV can also be good if he's going AD and oneshotting your team.

Nasus

Nasus is obnoxious because of how hard he scales, making him a monster in the mid-lategame no matter what. Fortunately his Q does physical damage and Thresh's armor stacking can counter this to a certain extent. Grasp build recommended to scale with him. Bully him hard pre-6 and use your ult and flay to push him away if/when he tries to all in.

Thresh should never lose teamfights to Nasus. With a little CDR Thresh can permanently stun him making him useless unless your team is too weak to finish him off. You will need help to handle his splitpush. Unflinching recommended.

Wukong

Like all assassins, Wukong is outscaled by Thresh, mainly as a tank. Unfortunately his recent rework made him a lot harder as his numbers are up across the board and he has two ultimates. Thresh can bully him early but he will obliterate you at lvl 6.

Aftershock will help survive his inevitable all in though grasp can force him out of lane.

Vayne

Vayne top is pretty scary and you can't do much about it other than flay and try to predict her tumble. Ganks can shut her down and you can set them up effectively, especially once you have chemtank.

It's good to prioritize her at all times just from how much true damage she does. She can hard carry.

Lucian

Similar to vayne but without the true damage. He also might build black cleaver which can mess you up. Can bully you extremely hard in lane forcing you to sacrifice large amounts of cs and xp. However, very high outplay potential anywhere near tower as he lacks Vayne's condemn and true damage. Free kill if ahead.

Maokai

Maokai is annoying but has low kill pressure (and poke) on you. Go tanky with grasp and make him miserable.

Ornn

Ornn is pretty tough because of his strong poke, engage, and sustain. You can't poke him most of the time because of Thresh's low range and Ornn's low Q CD and high damage. He's also tankier than you. His ult is good but you can deny most his engage with your ult and flay.

Kled

Kled isn't too bad. His double dash and Q are what you really need to worry about. Otherwise you can pull off some funny kills when Skarrl is down. He mostly does physical damage automatically making him easier than Jax or Irelia. Build frostfire so he can't move and build into randuins and thornmail so he can't hurt you.

Teemo

Teemo's poke and damage is very high and annoying but you can easily lock him down with flay, hook (or box) combo for jungle ganks. Take second wind and doran's shield for the most sustain. Aftershock with chemtank recommended.

Sett

Sett is like Garen in that he has so much health regen the dude is basically not possible to kill without your jungler. He also has a ton of damage mitigation in trades and can beat the **** out of you in melee range. Also like Garen, his only form of engage is running at you which is pretty simple to flay every time unless he flashes.

His ult is not as good as Garen's, what you really need to watch out for his the true damage W which can shred your healthbar. Otherwise just hit him and stack grasp for free. Zeke's and redemption are nice lategame options for him the former so your team can kill him and the latter to deal with his W.

Rumble

Rumble has tons of aoe magic damage, decent mobility, and strong range. Avoid trading when his flamespitter is up and focus on becoming tanky as possible/setting up ganks. His ult is better than your ult and does way more damage than you'd expect.

Mikaels, redemption, and anathemas are all good here.

Volibear

This lane is hard. Volibear is like Udyr. You have to respect him because his all in is powerful and deadly even at lvl 2. His ult also deactivates turrets which is a big problem for Thresh who likes to play around towers. While lane can be very difficult, Thresh can do well into Volibear in teamfights. Thresh ult and flay alone can keep him off of your team. After the earlygame he will also not be able to kill you unless he's far ahead.

You can run grasp vs this guy but aftershock is safer. Anathemas and frozen heart are good vs him.

Yorick

Thresh can bully Yorick a bit early lvls and maybe even kill him if he starts corrupting potion instead of doran's shield.

However this lane becomes unplayable after lvl 6 as you can never kill his maiden (unless he's bad) and his wall makes it hard to get away from him. He also does mixed damage and has a great splitpush. Anathemas is mandatory here but the game is going to be hard.

Akali

Akali does magic damage, has a lot of dashes, is hard to gank, and generally has way too many escapes in her kit. She's also hard to poke because her Q has no cooldown, cost is not high enough, and it does too much damage. It also gives her mobility.

Thresh can interrupt any of her dashes with flay and can potentially trap her under turret or other bad situations with ult. Hook and flay can pull her out of her shroud revealing her.

Anathemas and knight's vow (put it on a squishy ally) are good options here.

Irelia

Irelia's lane phase is extremely overpowered making her one of the hardest champions to deal with in lane. She has way too many dashes that do not cost mana, her damage is way too high, her stun can be over 1000 range, and her abuse of corrupting pot and time warp tonic makes her hard to kill. Play extremely carefully the entire lane and do not force any trades with her without your jungler or away from your tower.

Post 6 this lane becomes almost unplayable as her ult is also broken and counters your ult. Bramble vest is mandatory though she can quickly heal to full from minions.

What keeps this matchup from being a 5 is that her teamfights are garbage and a single hook can shut her down entirely. It also helps that anathemas and frozen heart counter her entire kit.

Pantheon

This lane is already hard because Pantheon's kit is strong (base stats are too high, damage is too high etc.). It becomes harder because of his ultimate, which you can't do anything about. Take demolish and bone plating and ping him whenever he's missing post 6. Thresh will outscale him.

Camille

This lane is not that bad for Thresh. Camille's entire engage can be denied by flay though you have to time it right. Thresh can poke with grasp and can deny her escape with flay and Q. Thresh ult soft counters Camille ult as you can flay her into a wall and walk away.

On the other hand, Camille has a lot of true damage, can roam effectively, and if you don't deny her engage she will punish you hard for it. You won't be able to 1v1 her after the early game with how broken sunderer is on her, but you don't need to since she suffers vs hard cc.

Shen

Shen's taunt can be flayed but it has an extremely fast animation and you can't block it unless you predict it. That probably won't happen. And if you don't block it he taunts you and chunks half your hp bar with no counterplay.

His ult can be interrupted with hook or flay but doing so can cause you to die to a taunt combo - or he'll walk out of vision ult and you won't have a chance to interrupt it. Irregardless, even if you do interrupt his ult he still gets his shield off which can be huge in a fight.

Shen is also a better tank than Thresh and will be very hard to kill. His global presence with R is not something you can match and it's better to ban him because this champion is OP.

Nautilus

You don't see this guy much in toplane anymore but he pops up every now and then. Like Thresh, Nautilus is a more supportive tank. And since he is also melee his damage is low and he cannot trade with you unless he lands a Q or if you walk into melee range.

The biggest risk here is getting ganked post 6 as Thresh cannot escape the almighty point and click. Take grasp and make him miserable.

Cho'Gath

Tank Cho is a pretty big issue for Thresh - pun intended. He has a lot of cc and Thresh has trouble dodging it due to lower base MS and no dashes. Unlike Volibear, Cho is comparably weak before lvl 6. You can win short trades but probably can't kill him. He is difficult to handle later as his huge size and cc will make teamfights tough, especially if there are hypercarries on his team.

Zekes can be a good option mid-late as the bonus on hit damage makes it easier to kill him.

Skarner

The only risks here are being pulled under tower and stunlocked or being ganked and stunlocked. Skarner can't do much to you on his own. Welcome to grasp city.

Cho'Gath

AP Cho'Gath is extremely painful to lane against. His Q can be hard to dodge and does a ton of damage. Thresh has no mr scaling and this lane will force you to stack it. He can poke you out of lane and you can never 1v1 him.

Cassiopeia

This lane is absolutely brutal. Since the removal of adaptive helm there's very little to mitigate the high damage burn of Cassio's abilities. Focus on surviving. A good Q can knock her out of the fight since you can follow this up with flay ult, and another Q provided some CDR. Anathemas and Mikaels are good items vs her.

Heimerdinger

Extremely annoying. This champion is known for pissing everyone off and this is especially true for Thresh. Why? Because Heimer's turrets block your hook. His W poke can be quite high and it is not difficult for him to hit an E on you due to Thresh's immobility.

Expect to lose your tower at 12 minutes without jungle supervision. Heimerdinger can be beaten in fights and taking redemption can be good to mitigate his high AOE.

Jayce

Jayce does a lot of poke damage and can knock you away and kite you to death if engaged on. The plus side is he is entirely physical damage so Thresh will scale against him.

Do not try to kill him without the jungler as Jayce's all in is deceptively strong at all points of the game. He also pokes.

Urgot

The main issue with Urgot is getting hit by his E. It's a 1.5 second stun, gives him a shield, and will lead into a high damage combo that can melt your healthbar. Fortunately, Thresh deny this with E though you'll need to predict it in close range. You'll be punished hard if you mess this up.

Trading with Urgot is weird because while he has 100 less range than you, his auto animation is faster. This means Thresh's trading isn't as favored as you'd think.

Urgot R can be scary and will execute you if below 25% health no matter what. This makes him akin to champions like Garen in terms of both his lane phase and true damage.

In fights it's best to cc the Urgot and keep him off anyone squishy. It might take a while to kill him as he's deceptively tanky.

Frozen heart is extremely strong against him since a lot of Urgot's damage comes from a big attack speed steroid from Purge. Excellent item to rush ahead of Abyssal if you don't absolutely need MR.

Gwen

Every single time she wants to go in press E and walk away. She has no way to gapclose after she uses her dash. Gwen can become untargetable which can deny your flay but in that instance just walk away. It's very easy to avoid trades with her while hitting her occasionally with Thresh's range advantage.

Teamfights can be more difficult due to her invulnerable but appropriate cc lockdown will make her useless. Unlike many bruisers she is bad at chasing you. But like many bruisers she outscales and will eventually win every 1v1. Anathemas is useless vs her and redemption/kv are better choices.

Trundle

The troll has really high stats and base health, good mobility, good waveclear, and a big ****ing pillar. None of these things are particularly big problems except the pillar. It is amazing disruption that can set up ganks from anywhere.

What Trundle wants to do is pillar, walk up and beat the **** out of you. To avoid this, it comes down to positioning and spacing. Never walk up to him if you're not next to the turret, never stand too close to a wall to avoid being creepblocked, and look to freeze if you can't shove the wave in time.

Trundle likes hitting things, particularly turrets. Watch out for his backdoor. If he tries to teamfight just hook him and he's useless. Anathemas and Frozen heart are your friends here.

Leona

Like two people play Leona top and for good reason. It sucks. She has no waveclear and all of her strength comes from repeatedly zenith blade-all inning which Thresh can repeatedly deny with E. She will be extremely tanky like Nautilus and can also set up ganks so keep that in mind. Otherwise take grasp and punish her for this pick.

Yone

Yone top is basically Yasuo top but harder. This is due to his good sustain, high damage, and his unstoppable on E. The unstoppable is especially annoying because Yone will often misposition with it then instantly correct his position ignoring all CC including your hook. Frozen heart and maybe redemption are pretty good vs him since he has some AOE and a lot of attack speed. Anathemas can be a good choice as well.

Quinn

Lane can be rough earlygame. Thresh passive will outscale her so it's possible to stomp this lane with enough armor. But what Quinn wants to do is run around the map and farm kills which is difficult to deal with due to her high mobility and lane bully status.

Tahm Kench

Complete hell to lane against after lvl 2-3. His W completely mitigates Thresh range advantage by allowing him to jump on you at any time and force a bad trade. Does good magic damage making the soul scaling useless. In lane you will be forced to sit under tower and wait for jungler to try and kill the frog. The upsides are that he does not push very well and can be locked down in teamfights. Q and E will both cancel his W. He falls off very hard.

Vladimir

Hard outscales and oneshots mid-late. Can pool Q,E, and R all at once making him a teamfight menace. It is possible to fight Vladimir in the earlygame but he will heal off of minions and out-sustain if he is not killed. Probably unbeatable if he's good.

Sylas

This lane is extremely dangerous as Sylas has a very powerful all-in even at lvl 2. This can be denied with flay but the dude has constant ability rotations that you'll need to respect. Thresh's ult isn't great for him to steal as it only bursts a single target. He can be locked down with cc and does not like to splitpush. Anathemas is good here.

Teemo

A good Teemo is pretty rough to play against. His damage is 90% magical so he doesn't care about Thresh's soul scaling. He will build a lot of attack speed to melt your hp bar even with MR. He's also hard to catch thanks to a tiny hitbox and high mobility. Not fun overall.

If you kill this guy its because he got overaggressive and decided to trade near turret. That's a death sentence for Teemo and always punish him if he does this. He's hard to deal with at all points in the game, especially later because his mushrooms can nuke your team. Anathemas can be good because he likes to splitpush and doesn't do true damage. Frozen heart isn't bad either, nor is redemption or mikaels to shield your allies.

Ezreal

The ezreal matchup is actually pretty easy early game because his damage is low and he has no dps. This becomes harder when he hits 6 because his ult has really high base damage and scaling. He will continue to outscale you from here and it will be impossible to touch him.

Draven

Draven is one of the worst matchups for ADC Thresh because of his high early game damage and aggressive playstyle. But he's very susceptible to cc and if you get a lead you can pop him.

Lucian

Lucian has multiple dashes, decent poke, and a lot of damage. But he's a shorter ranged ADC - only 500 range - and doesn't have the powerful lategame (Vayne) so it's not too bad if you survive early.

Vayne

Provided she's appropriately locked down, Vayne can be popped at all points of the game. Watch out for her condemn because the stun will stop you from autoing her.

Quinn

Quinn's blind can interrupt your autos and she has high mobility/roaming potential. But she's easy to pop if locked down and has mediocre range.

Jinx

Not an extreme threat but Jinx is definitely annoying. Her root can block an engage and her Zap does a lot of damage. She can also poke behind waves with her Q. She's similar to Vayne in how hard she can snowball if ahead

Caitlyn

Higher range ADCs are always a problem for Thresh and Caitlyn is no exception. She outranges you by 200 (650 vs 450), has a dash, a root, and can poke way behind minion waves (with both Q and R). This would be an instance where I would opt for Doran's Shield instead of Doran's Blade as you really need the help to survive lane. Exceptions would be if you're playing with an engage support who can reliably jump on her. In which case, take Doran's Blade for the extra damage.

Neeko

Neeko is pretty obnoxious for Thresh, ADC or otherwise. Her clone cancels your auto since it makes her invisible and, of course, you can mistakenly auto the clone if she does it properly. Her ult is impossible to avoid if she lands her root and she has good auto and spell poke. Playable if you have the right support (engage like Leona) but terrible if you don't. Fortunately, you'll probably never see Neeko support

Morgana

Not as bad as Neeko since her root doesn't pass through minion waves and her E poke is only effective if you're low (she won't max E anyway). If you DO get hit by her bind you're in trouble, which is what makes this matchup difficult. Her ult zhonyas combo can also cancel an autoattack, her stun cancels autoattacks, her pool poke will hurt later on, and her spellshield blocks Thresh's auto damage. Ban since she pops up often, especially in low elo.

Janna

A good Janna player will take advantage of the range disparity and constantly W auto you for a bunch of poke. Her Q and R both deny your (or your support's) engage, her shield mitigates your damage, and she can be hard to catch. This is less cancerous to deal with once you have rapid firecannon - at which point you will delete her in 1 auto. But until then...

Varus

Lethality varus is hard to deal with because its equivalent to the ADC version of Xerath. Opt for Doran's shield if you do not have a support who can reliably jump on him.

Nautilus

Nautilus can easily 1v1 you and is impossible to kill. And unlike Leona, you can't use cleanse to get rid of the cc from his ult (which is a point and click). Hope you have a frontline to handle him or you'll spend a lot of time running from his anchor.

Miss Fortune

Miss Fortune ADC really isn't that bad. She has a lot of mobility but very low base damage and mediocre range. Just avoid tanking her Q's and you're good to go.

Ashe

Ashe ADC's volley poke and Q slow are super annoying and she also has 600 range. However she has no mobility and is highly susceptible to hard engage. Given the right comp, you can easily pop her.

Ashe

Ashe support will spend the entire lane poking you with volley but she has no durability and no hard cc out of her crystal arrow. With an engage support or a good hook you can burst her down in seconds for free kills. If she's playing with a poke adc consider taking Doran's Shield so you don't get too low.

Brand

His poke and range are pretty tough for ADC Thresh. He can 1v2 lane in certain scenarios. You can pop him given a lead.

Aphelios

Has a turret that he can use to block Death Sentence and long range poke, cc, and other ********. Not the best auto range, though, and no dashes.

Samira

Like Yasuo, Samira windwall does not block Thresh autos. This gives you a huge advantage when trading with her. Flay and Death Sentence can both interrupt her ult. Her 500 auto range means you'll take minimal poke too.

Jhin

His snares and 4th shot damage can be very annoying. His ult is only a problem if there's no one around to peel for it. Whoever wins this lane stomps and vice versa.

Senna

Senna has a lot of poke, unlimited range scaling, cc, and high damage. Her wraith form also makes her untargetable with autoattacks. Without hard engage, lane will be rough. However you can pop her given a lead.

Braum

Braum has a powerful slow, a knockup and aoe slow, and a stun. Try to keep him off of you because his stun will make trading impossible. He's also very tanky so good luck killing him. That said, his shield won't block the Thresh autos which is a big plus.

Leona

Leona, like Nautilus, is a tanky engage machine whose only purpose is to remove the enemy adc from the game (while being unkillable). This matchup isn't so bad pre 6 since Thresh can flay her E and spacing from her Q isn't hard. But post 6 she can run at you whenever she likes and press R. Buying QSS or running cleanse is a good idea if you want to move.

Karthus

Oneshotting him doesn't actually win fights.

Morgana

Morgana's entire kit counters Thresh in one way or another, yet this is not nessecarily a loss. It's a skill matchup to a certain extent. Morgana's spellshield has a very long early game cooldown (several seconds longer than Death Sentence lvl 1) and if used on your hook - it won't block your engage. Her Q is extremely annoying and does a lot of damage thanks to its 90% AP ratio, but it's slow moving and not too difficult to dodge. The difficulty of Morgana matchup will depend on how good you or the ADC (especially the ADC) are at dodging her bind. If you can't dodge it, you'll quickly run into trouble. Consider banning if you think you can't handle her.

Sivir

Sivir is a pretty annoying champion who can deal a lot of poke far behind minion waves and can nullify your entire engage with one button. She takes a while to run out of mana, and will never run out once she has Essence Reaver, so she'll rarely be too oom for spellshield. Probably Thresh's hardest counter because she will always save spellshield for your hook. Her ult is also very annoying as she can run you down with it or run away if you (somehow) manage to get on top of her. She doesn't have a high pickrate so it isn't worth to ban her.

Janna

Not a dumb champion, but a very annoying one. Janna can disrupt Thresh's entire engage with Q and ult, can shield an ally from his damage (or the adc's), and can heal in a big ****ing AOE for like, a lot of health. She has decent earlygame poke, which is annoying, but Thresh will beat her quite hard pre-6. After which killing anyone on her team becomes significantly more difficult.

Sona

Lvl 1 pokebot but that's about all. Her hitbox is only slightly smaller than Canada (think Greenland) - which is also difficult for NA Threshmains to miss. Super, duper, ultra squishy and dead if you hit basically anything (and if she doesn't have flash). She will outscale you so keep that in mind. She has pick potential with her ult.

Brand

Cancer but beatable. His stun is his only escape and he's somewhat weak pre-6. Redemption and locket will be necessary in this lane. Probably a 4-5 threat in low elo because adcs never dodge his pillar and, usually, don't dodge his stun. Ganks may be necessary to do anything depending on the adcs (Sivir/Brand and Caitlyn/Brand are quite hard).

Alistar

Alistar's engage can be flayed but its a very fast animation meaning you must predict it. He's hard to kill but much less versatile than you.

Nautilus

Heavy cc and tankiness but less utility. He also has a hitbox the size of Canada, which is good because even NA threshmains can't miss it. Only danger is if he hooks your adc or manages to get a nice ult when the enemy jungler is around. Lantern away in both cases. Re-engage potential is strong. You can also poke him lvl 1-2 with autos. Becoms hard post 6.

Lux

Lux is pretty annoying with her light binding and undodgeable Q poke but that's about all. Like any squishy mage you can stomp her hard earlygame, which means the matchup is automatically in your favor. She also does not scale as hard as other mage/enchanter supports which is good news for you.

Braum

Braum's stun and that thing where he jumps to his ADC and shields all incoming damage is pretty annoying. He's also tanky and his Q poke is surprisingly decent. His ult is also a problem if it's combo'd with another AoE (such as Ezreal ult - overpowered as **** btw). This will force you to flash. The slow and knockup from it also counters the cc from your box. That said, he's just not a particularly big problem. Thresh has greater utility and just as much cc, in addition to being able to poke lvl 1-2. Lantern also, arguably, allows Thresh to peel his adc harder than Braum can. Avoid getting stunlocked out of position and you should be fine.

Rakan

His engage and disengage dashes have fast animations can be difficult to cancel. If you do you can set up a very free kill with EQ combo. Post 6 is hard due to the multitarget hard cc from his ult + knockup combo.

Soraka

Earlygame poke can be a problem. Her silence can also deny your engage but she can't do much if flashed on. Focus her in fights.

Ezreal

Ezreal is pretty annoying for Thresh to deal with. I've done some predictions which you can find in the videos in this guide of Ezreal E. But I've also had my share of boosted moments where I miss or they don't E and it's just not fun. Ezreal can be especially oppressive if he's got the right support.

Draven

Hook where his axes land, he'll always try to pick them up. Don't be overconfident, he has a speedboost and a displacement tool. You will be punished quite hard if you miss your QE/EQ combo.

Galio

His engage + taunt combo is pretty obnoxious to fight. He's also hard to kill and can block your abilities with his big hitbox.

Nami

Her bubble + ult can be a problem as can her earlygame poke (which is stronger than you'd think). She doesn't handle hard engage very well though. Similar to Soraka.

Zilean

Zilean is my counterpick to Thresh and he should be considered as such for any player. The only time Thresh will beat him is pre-6, or particularly pre-3, when Zilean does not have his Q,W,Q combo up (his double bomb and AOE stun). After that, Zilean will hard outscale. He can shove waves with his Q, can save himself or allies with his E, can obliterate your squishies with 1 successful combo, can pick you or an ally off with a 99% point and click slow, and to top it off, can revive anyone on his team with his ult (which also has a 200% ap scaling). Oh and did I say he does, exclusively, magic damage? Because he does. Yes, magic damage, the thing that tanks cannot itemize against.

Blitzcrank

Blitz is a pretty tough matchup for Thresh. His hook outclasses your hook and he's a lot, lot tankier earlygame so if you hook him he's probably fine. But if he hooks you, you're burning flashes. You can save ADC with lantern, though his ult will break any of your shields.

Bard

Skill matchup. If he doesnt poke you down you can win though.

Leona

Difficult due to how tanky Leona is. Post 6 is hard because she can catch you with her ult-E combo. Can easily deny her pre 6 engage with flay. Poke with autos lvl 1. Flay away if she starts E and engages.

Vayne

Vayne is a ******** champion who can tumble every few seconds, at low mana cost, to dodge your chains. Condemn does ridiculous damage with press the attack (both need to be nerfed) and can deny your engage. Lategame she will melt all tanks with a handful of autos due to how ******ed her kit is. Lock her down early (when she is very weak) and she will have trouble coming back. Don't and you lose 100%.

Aphelios

High threat level just because of how much damage he does. His turret can also block your hook and his long ranged root is obnoxious to play against. That said, he has no escapes and can be effectively locked down with a good EQ combo.

Senna

Senna's root and poke are annoying but Thresh will stomp the all ins every single time.

Caitlyn

Caitlyn has long range, a dash, and some very annoying crowd control with her traps. It is, however, possible to flay her dash into a free hook. Don't get poked down and you can look for opportunities to engage.

Yuumi

Pre 6 depends on the Yuumi's positioning and the safety of the ADC they're playing with. It is possible to catch her with a hook while she leaps back to her carry. Post 6 can be difficult as the hard cc from her ult can deny your engage.

Maokai

Maokai has tons of crowd control and is impossible to kill. By WQ'ing you or your adc he can deny your entire engage. His ult can counter your ult, but only if you get caught by it. His saplings can also provide vision for incoming ganks, can deny your engage (they also slow), or can just poke you or the ADC from bushes.

Lulu

Thresh beats Lulu early but loses quite hard later on. She's a possible ban for you.

Ahri

Ahri has a bunch of dashes and can poke you from behind minion waves. Her charm is extremely annoying and can be tricky to dodge since you can't farm from long range. She can also dodge your combo (or just your hook) with ult.

Heimerdinger

His turrets block your hooks and Thresh's immobility and short range makes it difficult to avoid his stun. You also lack the damage to efficiently clear his turrets although you can pull them under turret with Q. Unplayable if he's good.

Anivia

Unplayable.

Katarina

Earlygame, lvl 1-3, you will have the damage to trade with her and even beat her. However her damage quickly outscales yours and she will become dangerous. Make the most of your range advantage and repeat kill her so she can't kill you. Take electrocute and ignite.

Cassiopeia

Potentially beatable early levels due to mediocre damage and mana issues. Lane becomes difficult once she has her miasma and much harder post 6. Take electrocute and nullifying orb.

Lux

AD Thresh mid isn't the worst vs Lux, provided you can reliably dodge her light binding. Getting hit by it will set up a free Lux Q leading to you losing half your health.

Ryze

Ryze can be difficult due to his high waveclear, damage, and mobility with phase rush. His range isn't great though meaning you can probably combo him repeatedly with protobelt flay and ult.

Aurelion Sol

Veigar

Veigar is fairly easy pre 6. Use that time to constantly bully him because post 6 will be very hard. His cage counters your W and Q dashes! You also can't protobelt through it.

Vladimir

Extreme counter. His 20 second cd pool completely counters Thesh's 140 sec cd ult. He out sustains any of your poke and can burst you from full health. You can combo him hard when his pool is down though.

Sylas

Sylas isn't as bad as the others because he is melee, allowing you to poke him somewhat frequently early on. Post 6 will be difficult as your ult isn't terrible for him to steal (high base damage in single target 1v1s) and his W healing can bring him back to full hp in one click.

Akali

Can be hard to kill but you have potential outtrade potential with flay auto box combo.

Neeko

Her clone can block your hook and also makes her briefly invisible. Neeko's root/Q combo is very obnoxious and a good Neeko will do this every time you walk up to the wave. You can flay her ult.

Xerath

You need your jungler for this one or it will be very rough.

Zed

Rush seekers and stopwatch so you don't die to his 6. Thresh's armor stacking is pretty good against Zed and you can cheese kill lvl 1-2 with doran's blade.

Malzahar

Unplayable.

Diana

Diana has extremely high burst which should not be underestimated. She lacks aoe and range, however, and can be outplayed early.

Fizz

Borderline unplayable, stopwatch is mandatory in this lane. Fizz is like Vladimir as he can completely counter your ult with a much shorter CD ability and is generally hard to hit with any cc.

Irelia

One of the few matchups which isn't much of a problem. Thresh has a lot of safety against Irelia mid because she can't poke you and relies entirely on 24/7 all-ins. That's hard to pull off with Thresh's cc anywhere near the tower. Flay interrupts her dashes and stunning with hook can stop her R.

Lucian

Not as hard as Lucian top but still dangerous due to his powerful all in potential. Can hard engage on him with protobelt, flay, and ult.

Karthus

He's not hard to burst but can blow you up from beyond the grave. Scales much harder mid/late and is automatically more useful than you by pressing R. Once again, zhonyas is important!

Talon

He has surprising early burst but can be hard countered by Thresh's crowd control. Thresh ult counters his ult and it's generally not hard to hook or flay him out of invisibility. The main issue will be his roams...