MacroMind matchup data — real ranked games, not opinions
Jayce vs Sejuani
In Jungle, Jayce wins 57% against Sejuani across 179 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 1,116 gold.
Does Jayce counter Sejuani?
The numbers call it close: 57% for Jayce over 179 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 60% over 137 games; 300 behind drops it to 48% over 42.
The median first death in this lane comes at 4:59; the level 6 spike lands around 6:55. Respect the all-in window until your spike is online.