MacroMind matchup data: real ranked games, not opinions
Amumu vs Jax
How often does Amumu beat Jax in Jungle?
Amumu into Jax in Jungle: 51% observed win rate across 333 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 Amumu behind by 268 gold.
Amumu at 15:00
- Gold: -268
- CS: -4
- XP: -184
Typical gap to Jax, from 331 games that reached 15:00.
Does Amumu counter Jax?
No counter here: Amumu sits at 51% over 333 games. The swing lives in the spots below, so play the side you know better and chase the row that moves the number the most in this lane, then hold that lead through the first back.
Beating Jax: the Amumu game plan
A gold lead at 10:00 puts Amumu at 56% across 146 games. Flip the lead and Amumu falls to 47% across 187.
| The spot | Win rate | Games |
|---|---|---|
| Ahead in gold at 10:00 | 56% | 146 |
| Behind in gold at 10:00 | 47% | 187 |
| First blood | 53% | 182 |
| +kills at 10:00 | 55% | 102 |
| +CS at 10:00 | 55% | 170 |
| 0 deaths at 10:00 | 63% | 93 |
Someone usually dies here around 6:50 in the median game, and level 6 lands near 7:16. Until your spike is online, respect the all-in.
Amumu's Jungle build, with receipts
Into Jax specifically, Amumu finishes Liandry's Torment first most often: 48.5% over 101 games of this matchup.
The most-finished Amumu core is Liandry's Torment, Sunfire Aegis, Abyssal Mask: 57.9% across 1,753 games when all three got done. All matchups, patches 26.1-26.12.
Most games start Mosstomper Seedling + Health Potion; the first finished item is usually Liandry's Torment (9,569 games).
Skill plan: Amumu players max E first and take W at level 1.