MacroMind matchup data: real ranked games, not opinions
Amumu vs Jayce
How often does Amumu beat Jayce in Jungle?
Amumu into Jayce in Jungle: 45% observed win rate across 236 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 1,265 gold.
Amumu at 15:00
- Gold: -1,265
- CS: -15
- XP: -678
Typical gap to Jayce, from 234 games that reached 15:00.
Does Amumu counter Jayce?
No counter here: Amumu sits at 45% over 236 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 Jayce: the Amumu game plan
A gold lead at 10:00 puts Amumu at 58% across 55 games. Flip the lead and Amumu falls to 41% across 181.
| The spot | Win rate | Games |
|---|---|---|
| Ahead in gold at 10:00 | 58% | 55 |
| Behind in gold at 10:00 | 41% | 181 |
| First blood | 52% | 128 |
| +kills at 10:00 | 53% | 66 |
| +CS at 10:00 | 64% | 66 |
| 0 deaths at 10:00 | 59% | 49 |
Someone usually dies here around 6:19 in the median game, and level 6 lands near 7:10. Until your spike is online, respect the all-in.
Amumu's Jungle build, with receipts
Into Jayce specifically, Amumu finishes Liandry's Torment first most often: 41.1% over 90 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.