MacroMind matchup data — real ranked games, not opinions
Sejuani vs Amumu
In Jungle, Sejuani wins 49% against Amumu across 208 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 Sejuani behind by 134 gold.
Does Sejuani counter Amumu?
The numbers call it close: 49% for Sejuani over 208 games, inside the noise band. Pick the side you play better.
How to beat Amumu as Sejuani
Turn the early game into gold: 300 up at 10:00 runs this matchup at 60% over 94 games; 300 behind drops it to 40% over 114.
The median first death in this lane comes at 6:24; the level 6 spike lands around 7:06. Respect the all-in window until your spike is online.