MacroMind matchup data: real ranked games, not opinions
Jayce vs Kassadin
Jayce vs Kassadin in Mid: who wins more often?
Across 303 ranked games in Mid, Jayce beats Kassadin in 53% of them.
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 1,352 gold.
Jayce at 15:00
- Gold: +1,352
- CS: +26
- XP: +590
Typical gap to Kassadin, from 300 games that reached 15:00.
Does Jayce counter Kassadin?
Even on the count: Jayce lands at 53% over 303 games. Neither pick wins the lane alone, so take the side you play better and use the rows below to see which early spots swing this one, then play your first ten minutes around them.
Your Jayce game plan against Kassadin
With a gold lead at 10:00, Jayce wins 58% of 244 games in this matchup. Behind at the same mark, the rate drops to 29% over 59.
| The spot | Win rate | Games |
|---|---|---|
| Ahead in gold at 10:00 | 58% | 244 |
| Behind in gold at 10:00 | 29% | 59 |
| First blood | 56% | 179 |
| +kills at 10:00 | 59% | 163 |
| +CS at 10:00 | 56% | 266 |
| 0 deaths at 10:00 | 58% | 67 |
In the median game here, the first death comes near 5:38 and level 6 lands around 5:10. Until your spike is online, treat the all-in window with respect.
Jayce in Mid: the items that actually get built
Into Kassadin specifically, Jayce finishes Youmuu's Ghostblade first most often: 54.4% over 90 games of this matchup.
The most-finished Jayce core is Youmuu's Ghostblade, Manamune, Serylda's Grudge: 54.9% across 594 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 (2,878 games).
Skill plan: Jayce players max Q first and take Q at level 1.