MacroMind matchup data — real ranked games, not opinions
Jayce vs Kayn
What is Jayce's win rate vs Kayn?
In Top, Jayce wins 40% against Kayn across 81 observed ranked games. This is an observed win rate shown with its sample size, not a prediction or a guaranteed counter.
By 15 minutes the median game has Jayce ahead by 1,003 gold.
Does Jayce counter Kayn?
The numbers call it close: 40% for Jayce over 81 games, inside the noise band. Neither side counters the other on this sample — the lane swings on the spots below, so pick the side you play better and take the receipts with you.
How to beat Kayn as Jayce
| The spot | Win rate | Games |
|---|---|---|
| 300 gold up at 10:00 | 44% | 62 |
| +kills at 10:00 | 40% | 50 |
| +CS at 10:00 | 44% | 62 |
The median first death in this lane comes at 3:28; the level 6 spike lands around 5:20. Respect the all-in window until your spike is online.
What does Jayce build in Top?
The most-finished Jayce core is Youmuu's Ghostblade, Manamune, Serylda's Grudge: 55.0% across 2,411 games when all three got done. All matchups, patches 16.1-16.12.
Most games start Doran's Blade + Health Potion; the first finished item is usually Youmuu's Ghostblade (10,943 games).
Skill plan: Jayce players max Q first and take Q at level 1.