- Win Rate
- 50.3%
- Pick Rate
- 8.5%
- Ban Rate
- 25.5%
Yasuo vs Cassiopeia
- Patch
- 26.19
- Games
- 16,968
- Lane
- All Lanes
- Tier
- All Tiers
- Last Updated
- Oct 8, 2026 UTC
- Methodology
- Data Methodology
- Author
- Dakota Chinnick
Yasuo vs Cassiopeia is a decisive matchup in LoL patch 26.19. Yasuo wins with a 55.0% win rate (+10.0%) over Cassiopeia based on 20 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 Cassiopeia 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 Cassiopeia?
Yasuo wins 41.1% of these games. With this many games the true rate is most likely between 29.2% and 54.1% (95% range).
- Expected
- 52.9% From both champions' overall Mid win rates
- Matchup effect
- −11.8 pts Observed minus expected
- Sample
- 56 games Lane: Mid
- vs patch 26.18
- — Not enough games on both patches
Lane: Mid · Ranked Solo/Duo & Flex · North America server · All ranks · Patch 26.19 · Sep 24 – Sep 28
They also met in another lane (Top): 4 games, Yasuo won 50.0%.
Key takeaways
- Current data slightly favors Cassiopeia, but the sample is too limited for a strong conclusion: Yasuo wins 41.1% of 56 games (95% range 29.2–54.1%).
- Both champions' overall Mid win rates predict 52.9% for Yasuo; the result is within the margin of error of that, so this matchup mostly reflects the two champions' general strength.
- Yasuo usually wins the lane: 521 gold ahead of Cassiopeia at 15 minutes on average (55 games with a 15-minute snapshot).
- Yasuo players pick Absorb Life much less often against Cassiopeia: 65.5% of their other Mid games, 48.2% 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 Yasuo and Cassiopeia 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 Cassiopeia Laning Stats
At 15 minutes
Whole-game averages
Yasuo vs Cassiopeia Win Rate by Game Length
Yasuo's win rate against Cassiopeia 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 Cassiopeia in short and long games are within the margin of error of each other.
Yasuo vs Cassiopeia 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)YasuoYasuo gold at 15: +521
- First itemInsufficient data
- Games under 20 minInsufficient data
- 20–30 min gamesInsufficient data
- 30+ min gamesInsufficient data
What Yasuo Changes Against Cassiopeia
Choices Yasuo players make noticeably more or less often in this matchup than in their other Mid games.
Absorb LifeRuneUsually65.5%vs Cassiopeia48.2%−17.3 pts40.7% WR here
Legend: AlacrityRuneUsually92.2%vs Cassiopeia82.1%−10.1 pts39.1% WR here
Usually6.3%vs Cassiopeia16.1%+9.7 pts
Usually1.7%vs Cassiopeia5.4%+3.6 pts
Best Yasuo Build vs Cassiopeia
Usual Yasuo build (Mid)
81.8% win rate · 22 games
Against Cassiopeia
Not enough matchup-specific build data: only 4 of 38 Yasuo games against Cassiopeia carried a complete build, which is too few to recommend an item path from. Use Yasuo's standard build instead.
- Cassiopeia usually completes Rod of Ages first, at 11.5 min (median of 38 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 Cassiopeia
Usual Yasuo runes (Mid)
Lethal Tempo
72.4% win rate · 29 games
Against Cassiopeia
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 Cassiopeia FAQ - Patch 26.19
Who wins Yasuo vs Cassiopeia?
Current data slightly favors Cassiopeia, but the sample is too limited for a strong conclusion: Yasuo wins 41.1% of 56 games (95% range 29.2–54.1%).
What is Yasuo's win rate against Cassiopeia?
Yasuo wins 41.1% of 56 Mid games against Cassiopeia on patch 26.19 (95% range 29.2–54.1%). Based on both champions' overall Mid win rates, 52.9% would be expected.
Does Yasuo counter Cassiopeia?
Not clearly. Yasuo wins 41.1% of 56 games against Cassiopeia, and the 95% range (29.2–54.1%) includes 50%, so neither champion reliably counters the other on current data.
Who wins lane, Yasuo or Cassiopeia?
Yasuo usually wins the lane: 521 gold ahead of Cassiopeia at 15 minutes on average (55 games with a 15-minute snapshot).
Does Yasuo outscale Cassiopeia?
There are too few games of each length to tell yet.
When is Cassiopeia strongest against Yasuo?
On current data there is no stage of the game where Cassiopeia is ahead of Yasuo beyond the margin of error.
What should Yasuo build against Cassiopeia?
There are not enough games for a matchup-specific core, so use Yasuo's usual Mid core: Immortal Shieldbow, Stormrazor, Wit's End. The biggest change against Cassiopeia: Voltaic Cyclosword (1.7% usually, 5.4% here).
What runes should Yasuo use against Cassiopeia?
Use Yasuo's usual Lethal Tempo page (Precision + Resolve); there are too few games for a matchup-specific page. The biggest change against Cassiopeia: Absorb Life (65.5% usually, 48.2% here).