Tristana vs Jinx ADC Matchup

Tristana ADC wins 48.9% of 17,742 Low Elo games against Jinx ADC, +0.7 points vs expected, 2-patch window 26.19-26.20.

Researched on LoL patch 26.20. Tips are written to hold at any rank; stats come from Low Elo ranked games up to patch 26.20.

How to play as Tristana

Look for aggressive all-in spikes at levels 2, 3, and 6 by jumping onto immobile Jinx before she can ramp up items or get peel from her team.

If Jinx has armed Flame Chompers!(E), take Rocket Jump(W) around their line or wait for them to expire before jumping in; keep Buster Shot(R) ready if she follows your landing.

Detonating a fully-stacked 4-hit Explosive Charge(E) on an enemy champion immediately refreshes the cooldown of Rocket Jump(W).

How to play as Jinx

Do not cast Flame Chompers!(E) proactively in neutral; save them to drop right in front of your retreat path when Tristana winds up Rocket Jump(W), neutralizing her engage.

Avoid 1v1 all-in duels against Tristana during early laning; space back to deny her 4 bomb stacks, and punish her aggressively if she wastes Rocket Jump(W) or Explosive Charge(E) on minions.

Flame Chompers!(E) applies a knockdown that interrupts airborne dashes, halting Tristana mid-air and rooting her if she attempts to jump through them with Rocket Jump(W).

Fishbones(Q) grants Jinx 600+ attack range from level 1, giving her a significant range advantage over Tristana's 550 base range before Draw a Bead(P) scales up in the late game.

Sources

These notes come from r/ADCMains and LoL Wiki, checked against the champions' abilities.