Yasuovs Kai'Sa
Yasuo vs Kai'Sa is a decisive matchup in LoL patch 26.19. Yasuo wins with a 61.2% win rate (+22.4%) over Kai'Sa based on 67 games. Yasuo holds the advantage in both the early and late game. Below you'll find the best Yasuo build, runes, laning stats, and strategies for the Yasuo vs Kai'Sa matchup.
Yasuo Matchup Breakdown
Use the dropdown to select an opponent and see a detailed breakdown of how Yasuo 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 Yasuo vs Kai'Sa?
Yasuo wins 50.0% of these games. With this many games the true rate is most likely between 41.8% and 58.2% (95% range).
- Expected
- 51.7% From both champions' overall Bot win rates
- Matchup effect
- −1.7 pts Observed minus expected
- Sample
- 138 games Lane: Bot
- vs patch 26.18
- +3.9 pts Within normal patch-to-patch noise
Lane: Bot · Ranked Solo/Duo & Flex · North America server · All ranks · Patch 26.19 · Sep 24 – Sep 28
They also met in another lane (Mid): 9 games, Yasuo won 77.8%.
Key takeaways
- Yasuo vs Kai'Sa is an even matchup: Yasuo wins 50.0% of 138 games, and the 95% range (41.8–58.2%) comfortably includes 50%.
- Both champions' overall Bot win rates predict 51.7% for Yasuo; the result is within the margin of error of that, so this matchup mostly reflects the two champions' general strength.
- Neither side reliably wins the lane: the average gold difference at 15 minutes is 55, within the margin of error (136 games).
- Yasuo players pick Stormrazor much less often against Kai'Sa: 28.6% of their other Bot games, 16.7% 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 Yasuo and Kai'Sa 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 Yasuo'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.
Yasuo vs Kai'Sa Laning Stats
At 15 minutes
Whole-game averages
Yasuo vs Kai'Sa Win Rate by Game Length
Yasuo's win rate against Kai'Sa 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: Yasuo's results against Kai'Sa in short and long games are within the margin of error of each other.
Yasuo vs Kai'Sa 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)EvenYasuo gold at 15: −55
- First itemKai'SaYasuo: 13.1 min · Kai'Sa: 11.1 min
- Games under 20 minInsufficient data
- 20–30 min gamesEvenYasuo wins 49.2% of 59 games
- 30+ min gamesEvenYasuo wins 53.8% of 65 games
What Yasuo Changes Against Kai'Sa
Choices Yasuo players make noticeably more or less often in this matchup than in their other Bot games.
StormrazorItemUsually28.6%vs Kai'Sa16.7%−11.9 pts73.9% WR here
Doran's Bow + Health Potion + Health Potion + Stealth WardStarting itemsUsually24.9%vs Kai'Sa33.3%+8.4 pts58.7% WR here
Usually16.1%vs Kai'Sa23.2%+7.0 pts62.5% WR here
Doran's Blade + Health PotionStarting itemsUsually9.0%vs Kai'Sa2.9%−6.1 pts
Best Yasuo Build vs Kai'Sa
Usual Yasuo build (Bot)
68.6% win rate · 35 games
Against Kai'Sa
Not enough matchup-specific build data: only 9 of 94 Yasuo games against Kai'Sa carried a complete build, which is too few to recommend an item path from. Use Yasuo's standard build instead.
- Yasuo usually completes Blade of The Ruined King first, at 13.1 min (median of 48 games).
- Kai'Sa usually completes Kraken Slayer first, at 11.1 min (median of 82 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 Yasuo Runes vs Kai'Sa
Usual Yasuo runes (Bot)
Lethal Tempo
71.4% win rate · 35 games
Against Kai'Sa
Too few games for a matchup-specific rune page yet — use the usual page.
Plan your Yasuo 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
Yasuo matchup data for League of Legends patch 26.19. The table below shows Yasuo'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 Yasuo build, runes, laning stats, and early vs late game analysis for that specific matchup.
Other Yasuo Matchups
Hardest for Yasuo
Easiest for Yasuo
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.
Yasuo vs Kai'Sa FAQ - Patch 26.19
Who wins Yasuo vs Kai'Sa?
Yasuo vs Kai'Sa is an even matchup: Yasuo wins 50.0% of 138 games, and the 95% range (41.8–58.2%) comfortably includes 50%.
What is Yasuo's win rate against Kai'Sa?
Yasuo wins 50.0% of 138 Bot games against Kai'Sa on patch 26.19 (95% range 41.8–58.2%). Based on both champions' overall Bot win rates, 51.7% would be expected.
Does Yasuo counter Kai'Sa?
Not clearly. Yasuo wins 50.0% of 138 games against Kai'Sa, and the 95% range (41.8–58.2%) includes 50%, so neither champion reliably counters the other on current data.
Who wins lane, Yasuo or Kai'Sa?
Neither side reliably wins the lane: the average gold difference at 15 minutes is 55, within the margin of error (136 games).
Does Yasuo outscale Kai'Sa?
There are too few games of each length to tell yet.
When is Kai'Sa strongest against Yasuo?
Kai'Sa is measurably ahead in: First item.
What should Yasuo build against Kai'Sa?
There are not enough games for a matchup-specific core, so use Yasuo's usual Bot core: Immortal Shieldbow, Stormrazor, Infinity Edge. The biggest change against Kai'Sa: Stormrazor (28.6% usually, 16.7% here).
What runes should Yasuo use against Kai'Sa?
Use Yasuo's usual Lethal Tempo page (Precision + Resolve); there are too few games for a matchup-specific page.