MacroMind matchup data: real ranked games, not opinions
Jayce vs Sejuani
What is Jayce's win rate vs Sejuani?
In Top, Jayce wins 39% against Sejuani across 128 observed ranked games.
Global ranked sample: games from every region and every rank pooled together, not one server's stats. Data runs through patch 26.12; curves updated 2026-08-07.
By 15 minutes the median game has Jayce ahead by 26 gold.
Jayce at 15:00
- Gold: +26
- CS: +9
- XP: -554
Typical gap to Sejuani, from 127 games that reached 15:00.
Does Jayce counter Sejuani?
No, it runs the other way. Sejuani takes 61% of 128 ranked Top games. Jayce can still win it. The rows below show the spots that flip it, so plan your first recall and your trades around them, and play the lane for one of those spots rather than for kills.
How to beat Sejuani as Jayce
When Jayce is ahead in gold at 10:00, this matchup runs 51% over 63 games; behind, it drops to 28% over 65.
| The spot | Win rate | Games |
|---|---|---|
| Ahead in gold at 10:00 | 51% | 63 |
| Behind in gold at 10:00 | 28% | 65 |
| First blood | 50% | 52 |
| +kills at 10:00 | 56% | 41 |
| +CS at 10:00 | 47% | 94 |
The median first death in this lane comes at 3:50; the level 6 spike lands around 5:38. 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 26.1-26.12.
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.