- Win Rate
- 52.5%
- Pick Rate
- 2.2%
- Ban Rate
- 2.1%
Amumu vs Master Yi
- Patch
- 26.22
- Games
- 4,264
- Lane
- All Lanes
- Tier
- All Tiers
- Last Updated
- Nov 14, 2026 UTC
- Author
- Dakota Chinnick
- Methodology
- Data Methodology
Amumu vs Master Yi (Jungle): Amumu wins 53.5% of 355 ranked games over the last 2 patches (gold diff at 15: -305). Patch 26.22 build & runes.
Amumu53.5%
Current data slightly favors Amumu, but the sample is too limited for a strong conclusion: Amumu wins 53.5% of 355 games (95% range 48.3–58.6%).
Amumu Matchup Breakdown
Use the dropdown to select an opponent and see a detailed breakdown of how Amumu performs against them. You'll get head-to-head win rates, laning stats, the best build and runes for the matchup, and early vs late game analysis — all based on real ranked data.
Who wins Amumu vs Master Yi?
Amumu wins 53.5% of these games. With this many games the true rate is most likely between 48.3% and 58.6% (95% range).
- Expected
- 52.7% From both champions' overall Jungle win rates
- Matchup effect
- +0.8 pts Observed minus expected
- Sample
- 355 games Lane: Jungle · Patch 26.21–26.22
- vs patch 26.21
- −0.7 pts Within normal patch-to-patch noise
Lane: Jungle · Ranked Solo/Duo & Flex · North America server · All ranks · Patch 26.21–26.22 · Oct 27 – Nov 13
The headline win rate covers patches 26.21–26.22 (355 games). The lane, game-length, build and rune sections below use patch 26.22 only (175 games).
Key takeaways
- Current data slightly favors Amumu, but the sample is too limited for a strong conclusion: Amumu wins 53.5% of 355 games (95% range 48.3–58.6%).
- Both champions' overall Jungle win rates predict 52.7% for Amumu; the result is within the margin of error of that, so this matchup mostly reflects the two champions' general strength.
- Master Yi usually wins the lane: 305 gold ahead of Amumu at 15 minutes on average (167 games with a 15-minute snapshot).
- Amumu players pick Plated Steelcaps far more often against Master Yi: 52.7% of their other Jungle games, 70.3% here.
How we calculate this
Games: ranked Solo/Duo and Flex games on the North America server from the patch shown. Remakes (games under 5 minutes) are excluded.
A game only counts when Amumu and Master Yi played the same position on opposite teams, so roaming, lane swaps within a team or a champion merely being in the same game never count as this matchup.
The 95% range is a Wilson score interval. Confidence comes from how wide that range is: within ±3 points is very high, ±5 high, ±8 moderate, anything wider low. Below 20 games a matchup is not classified at all.
Expected win rate combines both champions’ win rates in this lane (same games and filters) with the log5 formula: E = A(1−B) / (A(1−B) + B(1−A)). Matchup effect = observed − expected.
"What changes" compares Amumu's choices in this matchup with the same champion's other games in the same lane, and lists a change only when it is at least 3 points and statistically significant (two-proportion z-test, |z| ≥ 2, 20+ games).
Results are not split by rank: the sample per rank is too small for honest per-rank matchup numbers.
Amumu vs Master Yi Laning Stats
At 15 minutes
Whole-game averages
Amumu vs Master Yi Win Rate by Game Length
Amumu's win rate against Master Yi by game length. The dot is the win rate, the bar its 95% range and the dashed line the champion's usual win rate at that length. Lengths with fewer than 25 games are left blank.
No game length stands out: Amumu's results against Master Yi in short and long games are within the margin of error of each other.
Amumu vs Master Yi Power Spikes
Who is ahead at each stage, measured from these games. A stage reads "Even" when the difference is inside the margin of error, and "Insufficient data" when there are too few games to tell.
- Lane (15 min)Master YiAmumu gold at 15: −305
- First itemEvenAmumu: 0.2 min · Master Yi: 0.2 min
- Games under 20 minInsufficient data
- 20–30 min gamesEvenAmumu wins 53.4% of 73 games
- 30+ min gamesEvenAmumu wins 51.2% of 84 games
What Amumu Changes Against Master Yi
Choices Amumu players make noticeably more or less often in this matchup than in their other Jungle games.
Plated SteelcapsBootsUsually52.7%vs Master Yi70.3%+17.6 pts55.3% WR here
Mercury's TreadsBootsUsually36.6%vs Master Yi20.6%−16.0 pts41.7% WR here
ThornmailItemUsually35.9%vs Master Yi48.6%+12.6 pts50.6% WR here
Frozen HeartItemUsually5.9%vs Master Yi16.0%+10.1 pts50.0% WR here
Usually83.4%vs Master Yi74.9%−8.5 pts53.4% WR here- Q > E > Wthe Q > E > W skill orderSkill priorityUsuallyunder 0.5%vs Master Yi3.4%+3.4 pts
Best Amumu Build vs Master Yi
Usual Amumu build (Jungle)
92.3% win rate · 13 games
Against Master Yi
Not enough matchup-specific build data: only 16 of 115 Amumu games against Master Yi carried a complete build, which is too few to recommend an item path from. Use Amumu's standard build instead.
- Amumu usually completes Mosstomper Seedling first, at 0.2 min (median of 131 games).
- Master Yi usually completes Gustwalker Hatchling first, at 0.2 min (median of 80 games).
- Skill priority: E > Q > W — the same as usual.
Builds are ranked by the lower edge of their win rate range, not the raw win rate, so a build seen in a handful of wins never outranks a proven one.
Best Amumu Runes vs Master Yi
Usual Amumu runes (Jungle)
Conqueror
62.3% win rate · 114 games
Against Master Yi
Conqueror54.1% win rate · 85 games
Plan your Amumu draft in Draft Lab
Draft Lab lays out both teams lane by lane with live matchup win rates, damage profiles and game-phase lean, and suggests picks and bans from current meta data.
- Full 5v5 draft board
- Lane matchup win rates
- Pick and ban suggestions
Amumu matchup data for League of Legends patch 26.22. The table below shows Amumu's win rate, gold difference, and performance stats against every champion in the current meta. Click any champion name to see a detailed head-to-head breakdown including the best Amumu build, runes, laning stats, and early vs late game analysis for that specific matchup.
Other Amumu Matchups
Hardest for Amumu
Easiest for Amumu
Win rate and games for each matchup. Lists are ranked by the edge of the 95% range so small samples cannot top them; matchups with at least 50 games only.
Help us maintain accuracy! If you notice incorrect stats, missing data, or any issues, your feedback directly improves the quality of our data for the entire community.
Amumu vs Master Yi FAQ - Patch 26.21–26.22
Who wins Amumu vs Master Yi?
Current data slightly favors Amumu, but the sample is too limited for a strong conclusion: Amumu wins 53.5% of 355 games (95% range 48.3–58.6%).
What is Amumu's win rate against Master Yi?
Amumu wins 53.5% of 355 Jungle games against Master Yi on patch 26.21–26.22 (95% range 48.3–58.6%). Based on both champions' overall Jungle win rates, 52.7% would be expected.
Does Amumu counter Master Yi?
Not clearly. Amumu wins 53.5% of 355 games against Master Yi, and the 95% range (48.3–58.6%) includes 50%, so neither champion reliably counters the other on current data.
Who wins lane, Amumu or Master Yi?
Master Yi usually wins the lane: 305 gold ahead of Amumu at 15 minutes on average (167 games with a 15-minute snapshot).
Does Amumu outscale Master Yi?
There are too few games of each length to tell yet.
When is Master Yi strongest against Amumu?
Master Yi is measurably ahead in: Lane (15 min).
What should Amumu build against Master Yi?
There are not enough games for a matchup-specific core, so use Amumu's usual Jungle core: Abyssal Mask, Jak'Sho, The Protean, Hollow Radiance. The biggest change against Master Yi: Plated Steelcaps (52.7% usually, 70.3% here).
What runes should Amumu use against Master Yi?
Conqueror with Precision and Domination — 54.1% over 85 games against Master Yi.