MacroMind matchup data — real ranked games, not opinions
Jayce vs Sejuani
In Top, Jayce wins 41% against Sejuani across 88 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 30 gold.
Does Jayce counter Sejuani?
The numbers call it close: 41% for Jayce over 88 games, inside the noise band. Pick the side you play better.
How to beat Sejuani as Jayce
Turn the early game into gold: 300 up at 10:00 runs this matchup at 55% over 42 games; 300 behind drops it to 28% over 46.
The median first death in this lane comes at 4:45; the level 6 spike lands around 5:40. Respect the all-in window until your spike is online.