- Win Rate
- 50.0%
- Pick Rate
- 6.2%
- Ban Rate
- 10.7%
Kayn vs Aatrox
- Patch
- 26.20
- Games
- 8,154
- Lane
- All Lanes
- Tier
- All Tiers
- Last Updated
- Oct 13, 2026 UTC
- Methodology
- Data Methodology
- Author
- Dakota Chinnick
Kayn vs Aatrox is a decisive matchup in LoL patch 26.20. Kayn wins with a 52.6% win rate (+5.3%) over Aatrox based on 38 games. Kayn holds the advantage in both the early and late game. Below you'll find the best Kayn build, runes, laning stats, and strategies for the Kayn vs Aatrox matchup.
Kayn Matchup Breakdown
Use the dropdown to select an opponent and see a detailed breakdown of how Kayn 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 Kayn vs Aatrox?
Kayn wins 53.6% of these games. With this many games the true rate is most likely between 35.8% and 70.5% (95% range).
- Expected
- 51.3% From both champions' overall Jungle win rates
- Matchup effect
- +2.2 pts Observed minus expected
- Sample
- 28 games Lane: Jungle
- vs patch 26.19
- — Not enough games on both patches
Lane: Jungle · Ranked Solo/Duo & Flex · North America server · All ranks · Patch 26.20 · Oct 9 – Oct 11
They also met in another lane (Top): 9 games, Kayn won 55.6%.
Key takeaways
- Current data slightly favors Kayn, but the sample is too limited for a strong conclusion: Kayn wins 53.6% of 28 games (95% range 35.8–70.5%).
- Both champions' overall Jungle win rates predict 51.3% for Kayn; the result is within the margin of error of that, so this matchup mostly reflects the two champions' general strength.
- Kayn players pick Triumph far more often against Aatrox: 48.6% of their other Jungle games, 71.4% 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 Kayn and Aatrox 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 Kayn'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.
Kayn vs Aatrox Laning Stats
Only 28 games have a 15-minute snapshot so far — the lane-phase numbers appear from 30.
Whole-game averages
Kayn vs Aatrox Win Rate by Game Length
Kayn's win rate against Aatrox 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: Kayn's results against Aatrox in short and long games are within the margin of error of each other.
Kayn vs Aatrox 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)Insufficient data
- First itemInsufficient data
- Games under 20 minInsufficient data
- 20–30 min gamesInsufficient data
- 30+ min gamesInsufficient data
What Kayn Changes Against Aatrox
Choices Kayn players make noticeably more or less often in this matchup than in their other Jungle games.
TriumphRuneUsually48.6%vs Aatrox71.4%+22.8 pts65.0% WR here
Sudden ImpactRuneUsually54.9%vs Aatrox35.7%−19.2 pts
Mosstomper SeedlingStarting itemsUsually5.6%vs Aatrox17.9%+12.2 pts
ResolveSecondary treeUsually1.0%vs Aatrox7.1%+6.1 pts
Scorchclaw Pup + Health Potion + Oracle LensStarting itemsUsually1.8%vs Aatrox7.1%+5.3 pts
Press the AttackKeystoneUsuallyunder 0.5%vs Aatrox3.6%+3.6 pts
Best Kayn Build vs Aatrox
Usual Kayn build (Jungle)
70.8% win rate · 89 games
Against Aatrox
Not enough matchup-specific build data: only 4 of 19 Kayn games against Aatrox carried a complete build, which is too few to recommend an item path from. Use Kayn's standard build instead.
- Aatrox usually completes Scorchclaw Pup first, at 0.2 min (median of 23 games).
- Skill priority: Q > W > E — 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 Kayn Runes vs Aatrox
Usual Kayn runes (Jungle)
Dark Harvest
62.6% win rate · 99 games
Against Aatrox
Too few games for a matchup-specific rune page yet — use the usual page.
Plan your Kayn 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
Kayn matchup data for League of Legends patch 26.20. The table below shows Kayn'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 Kayn build, runes, laning stats, and early vs late game analysis for that specific matchup.
Other Kayn Matchups
Hardest for Kayn
Easiest for Kayn
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.
Kayn vs Aatrox FAQ - Patch 26.20
Who wins Kayn vs Aatrox?
Current data slightly favors Kayn, but the sample is too limited for a strong conclusion: Kayn wins 53.6% of 28 games (95% range 35.8–70.5%).
What is Kayn's win rate against Aatrox?
Kayn wins 53.6% of 28 Jungle games against Aatrox on patch 26.20 (95% range 35.8–70.5%). Based on both champions' overall Jungle win rates, 51.3% would be expected.
Does Kayn counter Aatrox?
Not clearly. Kayn wins 53.6% of 28 games against Aatrox, and the 95% range (35.8–70.5%) includes 50%, so neither champion reliably counters the other on current data.
Who wins lane, Kayn or Aatrox?
There are not enough games with a 15-minute snapshot yet (28) to say who wins lane.
Does Kayn outscale Aatrox?
There are too few games of each length to tell yet.
When is Aatrox strongest against Kayn?
On current data there is no stage of the game where Aatrox is ahead of Kayn beyond the margin of error.
What should Kayn build against Aatrox?
There are not enough games for a matchup-specific core, so use Kayn's usual Jungle core: Voltaic Cyclosword, Axiom Arc, Lord Dominik's Regards. The biggest change against Aatrox: Mosstomper Seedling (5.6% usually, 17.9% here).
What runes should Kayn use against Aatrox?
Use Kayn's usual Dark Harvest page (Domination + Sorcery); there are too few games for a matchup-specific page. The biggest change against Aatrox: Triumph (48.6% usually, 71.4% here).