Tahm Kench should focus on durable short trades to deny Cho'Gath safe scaling and prevent him from freely stacking (R).
Maintain medium lane pressure by using (Q) stacks and (E) shield to absorb Cho'Gath's poke and punish his low early agency.
Trading pattern
Engage short trades by stacking passive, landing (Q) to slow or stun, then absorb retaliation with (E) shield.
Punish Cho'Gath when he misses (Q) or (W) cooldowns by stepping forward for quick trades.
Avoid long trades without (E) shield value and do not waste (W) where Cho'Gath can easily dodge or counter-engage.
Danger windows
Be cautious when (Q) and (W) are up together, as his knockup and silence combo can punish predictable movement.
Avoid extended trades when your passive stacks have fallen off, as your threat to stun or (R) resets.
Respect (R) execute range on low health targets; avoid staying near him when below half health without (E) shield ready.
Early game
Use early waves to build passive stacks and look for (Q) stuns before Cho'Gath reaches level 6.
Avoid prolonged trades before your first tank item; rely on (E) to absorb damage and reset trades quickly.
Respect (Q) knockup and silence (W) by not moving predictably near minions to avoid his control combo.
Power spikes
At level 6, use (R) to isolate Cho'Gath or protect allies from his execute threat; avoid fighting when his (R) is off cooldown.
After completing your first tank item, take more aggressive short trades leveraging improved durability and (E) shield.
Respect Cho'Gath's level 6 (R) execute power and his growing durability from multiple (R) stacks by kiting and avoiding grouped fights in his zone control areas.
Win conditions
Win lane by consistently landing (Q) stuns with full passive stacks and converting trades using (E) shield to outlast Cho'Gath's poke.
Use (R) strategically to isolate Cho'Gath or save allies from his burst and execute attempts.
Deny Cho'Gath safe farming and scaling by forcing repeated short trades and punishing missed (Q) and (W) cooldowns to delay his tank item timing.
Tip: For Tahm Kench vs Cho'Gath, read overview, trading pattern, and danger windows first for a fast Top lane check.