- Win Rate
- 50.6%
- Pick Rate
- 5.1%
- Ban Rate
- 27.3%
Master Yi vs Kayn
- Patch
- 26.19
- Games
- 10,277
- Lane
- All Lanes
- Tier
- All Tiers
- Last Updated
- Oct 9, 2026 UTC
- Methodology
- Data Methodology
- Author
- Dakota Chinnick
Master Yi vs Kayn is a moderate matchup in LoL patch 26.19. Kayn wins with a 51.8% win rate (+3.6%) over Master Yi based on 247 games. Master Yi wins the early laning phase while Kayn scales better into the late game. Below you'll find the best Master Yi build, runes, laning stats, and strategies for the Master Yi vs Kayn matchup.
Master Yi Matchup Breakdown
Use the dropdown to select an opponent and see a detailed breakdown of how Master Yi 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 Master Yi vs Kayn?
Master Yi wins 49.8% of these games. With this many games the true rate is most likely between 45.9% and 53.8% (95% range).
- Expected
- 50.5% From both champions' overall Jungle win rates
- Matchup effect
- −0.7 pts Observed minus expected
- Sample
- 612 games Lane: Jungle
- vs patch 26.18
- −1.9 pts Within normal patch-to-patch noise
Lane: Jungle · Ranked Solo/Duo & Flex · North America server · All ranks · Patch 26.19 · Sep 24 – Sep 28
Key takeaways
- Master Yi vs Kayn is an even matchup: Master Yi wins 49.8% of 612 games, and the 95% range (45.9–53.8%) comfortably includes 50%.
- Both champions' overall Jungle win rates predict 50.5% for Master Yi; 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: 357 gold ahead of Kayn at 15 minutes on average (607 games with a 15-minute snapshot).
- Master Yi players pick Death's Dance far more often against Kayn: 16.3% of their other Jungle games, 21.2% 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 Master Yi and Kayn 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 Master Yi'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.
Master Yi vs Kayn Laning Stats
At 15 minutes
Whole-game averages
Master Yi vs Kayn Win Rate by Game Length
Master Yi's win rate against Kayn 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: Master Yi's results against Kayn in short and long games are within the margin of error of each other.
Master Yi vs Kayn 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 YiMaster Yi gold at 15: +357
- First itemEvenMaster Yi: 0.2 min · Kayn: 0.2 min
- Games under 20 minEvenMaster Yi wins 59.6% of 52 games
- 20–30 min gamesEvenMaster Yi wins 50.0% of 248 games
- 30+ min gamesEvenMaster Yi wins 48.1% of 312 games
What Master Yi Changes Against Kayn
Choices Master Yi players make noticeably more or less often in this matchup than in their other Jungle games.
Death's DanceItemUsually16.3%vs Kayn21.2%+5.0 pts63.8% WR here
Usually25.6%vs Kayn21.6%−4.1 pts47.0% WR here
Plated SteelcapsBootsUsually8.5%vs Kayn11.6%+3.1 pts52.1% WR here
Best Master Yi Build vs Kayn
Usual Master Yi build (Jungle)
67.2% win rate · 335 games
Against Kayn
75.9% win rate · 29 games
Limited sample: 29 of 429 games finished this exact core, so treat it as an observation rather than a recommendation.
- Master Yi usually completes Gustwalker Hatchling first, at 0.2 min (median of 253 games).
- Kayn usually completes Scorchclaw Pup first, at 0.2 min (median of 292 games).
- Skill priority: Q > E > 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 Master Yi Runes vs Kayn
Usual Master Yi runes (Jungle)
Lethal Tempo
82.4% win rate · 17 games
Against Kayn
Hail of Blades
48.0% win rate · 202 games
Plan your Master Yi 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
Master Yi matchup data for League of Legends patch 26.19. The table below shows Master Yi'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 Master Yi build, runes, laning stats, and early vs late game analysis for that specific matchup.
Other Master Yi Matchups
Hardest for Master Yi
Easiest for Master Yi
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.
Master Yi vs Kayn FAQ - Patch 26.19
Who wins Master Yi vs Kayn?
Master Yi vs Kayn is an even matchup: Master Yi wins 49.8% of 612 games, and the 95% range (45.9–53.8%) comfortably includes 50%.
What is Master Yi's win rate against Kayn?
Master Yi wins 49.8% of 612 Jungle games against Kayn on patch 26.19 (95% range 45.9–53.8%). Based on both champions' overall Jungle win rates, 50.5% would be expected.
Does Master Yi counter Kayn?
Not clearly. Master Yi wins 49.8% of 612 games against Kayn, and the 95% range (45.9–53.8%) includes 50%, so neither champion reliably counters the other on current data.
Who wins lane, Master Yi or Kayn?
Master Yi usually wins the lane: 357 gold ahead of Kayn at 15 minutes on average (607 games with a 15-minute snapshot).
Does Master Yi outscale Kayn?
Not measurably: Master Yi's win rate against Kayn in games of 25 minutes or less and in longer games is within the margin of error of each other.
When is Kayn strongest against Master Yi?
On current data there is no stage of the game where Kayn is ahead of Master Yi beyond the margin of error.
What should Master Yi build against Kayn?
The most successful Master Yi core against Kayn is Kraken Slayer, Death's Dance, Guinsoo's Rageblade (75.9% over 29 games). The biggest change against Kayn: Death's Dance (16.3% usually, 21.2% here).
What runes should Master Yi use against Kayn?
Hail of Blades with Domination and Precision — 48.0% over 202 games against Kayn.