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. Observed from real matches — the sample size sits next to the rate, here and on every number below.
By 15 minutes the median game has Jayce ahead by 1,352 gold.
Does Jayce counter Kassadin?
No counter call here: Jayce lands at 53% over 303 games, inside the noise band for a sample this size. Neither pick wins the lane on its own — the swing lives in the spots below, so take the side you play better and use the receipts.
Your Jayce game plan against Kassadin
With a 300-gold lead at 10:00, Jayce wins 58% of 244 games in this matchup. Down 300 at the same mark, the rate drops to 29% over 59.
| The spot | Win rate | Games |
|---|---|---|
| 300 gold up at 10:00 | 58% | 244 |
| 300 gold down 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 16.1-16.12.
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.