Lucian vs Jhin ADC Matchup
Lucian ADC wins 48.2% of 11,460 Low Elo games against Jhin ADC, +0.1 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 Lucian
Look for a short trade when Jhin has spent his 4th shot and steps up to farm; use Relentless Pursuit(E) only when you can finish the burst and retreat before Jhin's support follows up.
Jhin's basic attack range is 550 to Lucian's 500, but Relentless Pursuit(E) closes the gap and Lucian's Lightslinger(P) adds a double shot after each ability.
Piercing Light(Q) can pass through a minion to hit Jhin behind it, so a minion between them does not always protect Jhin from Lucian's poke.
How to play as Jhin
Stay near the edge of Lucian's dash range and hold Deadly Flourish(W) while Relentless Pursuit(E) is available; if he spends E to enter, root him after you or an ally deals damage and back out of his double-shot trade.
Sources
These notes come from r/JhinMains and r/LucianMains, checked against the champions' abilities.