MacroMind matchup data — real ranked games, not opinions
Kassadin vs Jayce
What is Kassadin's win rate vs Jayce?
In Mid, Kassadin wins 48% against Jayce across 303 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 Kassadin behind by 1,351 gold.
Does Kassadin counter Jayce?
The numbers call it close: 48% for Kassadin over 303 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 Jayce as Kassadin
When Kassadin is 300 gold up at 10:00, this matchup runs 71% over 59 games; 300 down, it drops to 42% over 244.
| The spot | Win rate | Games |
|---|---|---|
| 300 gold up at 10:00 | 71% | 59 |
| 300 gold down at 10:00 | 42% | 244 |
| First blood | 57% | 138 |
| +kills at 10:00 | 62% | 71 |
| 0 deaths at 10:00 | 62% | 82 |
The median first death in this lane comes at 5:50; the level 6 spike lands around 5:38. Respect the all-in window until your spike is online.
What does Kassadin build in Mid?
Into Jayce specifically, Kassadin finishes Rod of Ages first most often: 42.6% over 122 games of this matchup.
The most-finished Kassadin core is Rod of Ages, Archangel's Staff, Malignance: 59.7% across 4,009 games when all three got done. All matchups, patches 16.1-16.12.
Most games start Doran's Shield + Health Potion; the first finished item is usually Rod of Ages (15,366 games).
Skill plan: Kassadin players max E first and take Q at level 1.