MacroMind matchup data: real ranked games, not opinions
Irelia vs Cassiopeia
What is Irelia's win rate vs Cassiopeia?
In Mid, Irelia wins 49% against Cassiopeia across 276 observed ranked games.
Global ranked sample: games from every region and every rank pooled together, not one server's stats. Data runs through patch 26.12; curves updated 2026-08-07.
By 15 minutes the median game has Irelia ahead by 701 gold.
Irelia at 15:00
- Gold: +701
- CS: +15
- XP: +347
Typical gap to Cassiopeia, from 273 games that reached 15:00.
Does Irelia counter Cassiopeia?
Too close to call. Irelia sits at 49% over 276 games, so neither pick counters the other here. The lane goes to whoever wins the spots below, like the gold lead at 10:00 or staying alive until 15:00, so play for those and let the pick argument go.
How to beat Cassiopeia as Irelia
When Irelia is ahead in gold at 10:00, this matchup runs 59% over 161 games; behind, it drops to 35% over 115.
| The spot | Win rate | Games |
|---|---|---|
| Ahead in gold at 10:00 | 59% | 161 |
| Behind in gold at 10:00 | 35% | 115 |
| First blood | 62% | 130 |
| +kills at 10:00 | 63% | 124 |
| +CS at 10:00 | 55% | 189 |
The median first death in this lane comes at 3:07; the level 6 spike lands around 5:33. Respect the all-in window until your spike is online.
What does Irelia build in Mid?
Into Cassiopeia specifically, Irelia finishes Blade of The Ruined King first most often: 47.1% over 138 games of this matchup.
The most-finished Irelia core is Blade of The Ruined King, Wit's End, Death's Dance: 49.9% across 2,078 games when all three got done. All matchups, patches 26.1-26.12.
Most games start Doran's Blade + Health Potion; the first finished item is usually Blade of The Ruined King (21,148 games).
Skill plan: Irelia players max Q first and take Q at level 1.