Kai'Savs Yasuo
Kai'Sa vs Yasuo 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 Kai'Sa build, runes, laning stats, and strategies for the Kai'Sa vs Yasuo matchup.
Kai'Sa Matchup Breakdown
Use the dropdown to select an opponent and see a detailed breakdown of how Kai'Sa 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 Kai'Sa vs Yasuo?
Kai'Sa 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
- 48.3% 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, Kai'Sa won 22.2%.
Key takeaways
- Kai'Sa vs Yasuo is an even matchup: Kai'Sa wins 50.0% of 138 games, and the 95% range (41.8–58.2%) comfortably includes 50%.
- Both champions' overall Bot win rates predict 48.3% for Kai'Sa; 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).
- Kai'Sa players pick Flash + Barrier much less often against Yasuo: 86.4% of their other Bot games, 80.4% 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 Kai'Sa and Yasuo 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 Kai'Sa'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.
Kai'Sa vs Yasuo Laning Stats
At 15 minutes
Whole-game averages
Kai'Sa vs Yasuo Win Rate by Game Length
Kai'Sa's win rate against Yasuo 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: Kai'Sa's results against Yasuo in short and long games are within the margin of error of each other.
Kai'Sa vs Yasuo 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)EvenKai'Sa gold at 15: +55
- First itemKai'SaKai'Sa: 11.1 min · Yasuo: 13.1 min
- Games under 20 minInsufficient data
- 20–30 min gamesEvenKai'Sa wins 50.8% of 59 games
- 30+ min gamesEvenKai'Sa wins 46.2% of 65 games
What Kai'Sa Changes Against Yasuo
Choices Kai'Sa players make noticeably more or less often in this matchup than in their other Bot games.
Flash + BarrierSummoner spellsUsually86.4%vs Yasuo80.4%−5.9 pts48.6% WR here
Exhaust + FlashSummoner spellsUsually6.0%vs Yasuo10.9%+4.9 pts
Usually2.6%vs Yasuo5.8%+3.2 pts
Best Kai'Sa Build vs Yasuo
Usual Kai'Sa build (Bot)
82.6% win rate · 23 games
Limited sample: 22 of 102 games finished this exact core, so treat it as an observation rather than a recommendation.
- Kai'Sa usually completes Kraken Slayer first, at 11.1 min (median of 82 games).
- Yasuo usually completes Blade of The Ruined King first, at 13.1 min (median of 48 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 Kai'Sa Runes vs Yasuo
Usual Kai'Sa runes (Bot)
Lethal Tempo
70.4% win rate · 27 games
Against Yasuo
Lethal Tempo
52.4% win rate · 63 games
Plan your Kai'Sa 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
Kai'Sa matchup data for League of Legends patch 26.19. The table below shows Kai'Sa'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 Kai'Sa build, runes, laning stats, and early vs late game analysis for that specific matchup.
Other Kai'Sa Matchups
Hardest for Kai'Sa
Easiest for Kai'Sa
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.
Kai'Sa vs Yasuo FAQ - Patch 26.19
Who wins Kai'Sa vs Yasuo?
Kai'Sa vs Yasuo is an even matchup: Kai'Sa wins 50.0% of 138 games, and the 95% range (41.8–58.2%) comfortably includes 50%.
What is Kai'Sa's win rate against Yasuo?
Kai'Sa wins 50.0% of 138 Bot games against Yasuo on patch 26.19 (95% range 41.8–58.2%). Based on both champions' overall Bot win rates, 48.3% would be expected.
Does Kai'Sa counter Yasuo?
Not clearly. Kai'Sa wins 50.0% of 138 games against Yasuo, and the 95% range (41.8–58.2%) includes 50%, so neither champion reliably counters the other on current data.
Who wins lane, Kai'Sa or Yasuo?
Neither side reliably wins the lane: the average gold difference at 15 minutes is 55, within the margin of error (136 games).
Does Kai'Sa outscale Yasuo?
There are too few games of each length to tell yet.
When is Yasuo strongest against Kai'Sa?
On current data there is no stage of the game where Yasuo is ahead of Kai'Sa beyond the margin of error.
What should Kai'Sa build against Yasuo?
The most successful Kai'Sa core against Yasuo is Kraken Slayer, Terminus, Guinsoo's Rageblade (63.6% over 22 games). The biggest change against Yasuo: Blade of The Ruined King (2.6% usually, 5.8% here).
What runes should Kai'Sa use against Yasuo?
Lethal Tempo with Precision and Inspiration — 52.4% over 63 games against Yasuo. The biggest change against Yasuo: Flash + Barrier (86.4% usually, 80.4% here).