- Win Rate
- 50.1%
- Pick Rate
- 2.9%
- Ban Rate
- 3.0%
Swain vs Yuumi
- Patch
- 26.22
- Games
- 5,717
- Lane
- All Lanes
- Tier
- All Tiers
- Last Updated
- Nov 14, 2026 UTC
- Author
- Dakota Chinnick
- Methodology
- Data Methodology
Swain vs Yuumi (Support): Swain wins 49.2% of 122 ranked games over the last 2 patches (gold diff at 15: +589). Patch 26.22 build & runes.
Swain49.2%
Current data slightly favors Yuumi, but the sample is too limited for a strong conclusion: Swain wins 49.2% of 122 games (95% range 40.5–57.9%).
Swain Matchup Breakdown
Use the dropdown to select an opponent and see a detailed breakdown of how Swain 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 Swain vs Yuumi?
Swain wins 49.2% of these games. With this many games the true rate is most likely between 40.5% and 57.9% (95% range).
- Expected
- 51.3% From both champions' overall Support win rates
- Matchup effect
- −2.1 pts Observed minus expected
- Sample
- 122 games Lane: Support · Patch 26.21–26.22
- vs patch 26.21
- −1.5 pts Within normal patch-to-patch noise
Lane: Support · Ranked Solo/Duo & Flex · North America server · All ranks · Patch 26.21–26.22 · Oct 27 – Nov 14
The headline win rate covers patches 26.21–26.22 (122 games). The lane, game-length, build and rune sections below use patch 26.22 only (66 games).
Key takeaways
- Current data slightly favors Yuumi, but the sample is too limited for a strong conclusion: Swain wins 49.2% of 122 games (95% range 40.5–57.9%).
- Both champions' overall Support win rates predict 51.3% for Swain; the result is within the margin of error of that, so this matchup mostly reflects the two champions' general strength.
- Swain usually wins the lane: 589 gold ahead of Yuumi at 15 minutes on average (65 games with a 15-minute snapshot).
- Swain players pick Mercury's Treads much less often against Yuumi: 17.9% of their other Support games, 7.6% 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 Swain and Yuumi 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 Swain'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.
Swain vs Yuumi Laning Stats
At 15 minutes
Whole-game averages
Swain vs Yuumi Win Rate by Game Length
Swain's win rate against Yuumi 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: Swain's results against Yuumi in short and long games are within the margin of error of each other.
Swain vs Yuumi 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)SwainSwain gold at 15: +589
- First itemEvenSwain: 12.3 min · Yuumi: 12.5 min
- Games under 20 minInsufficient data
- 20–30 min gamesInsufficient data
- 30+ min gamesInsufficient data
What Swain Changes Against Yuumi
Choices Swain players make noticeably more or less often in this matchup than in their other Support games.
Mercury's TreadsBootsUsually17.9%vs Yuumi7.6%−10.3 pts
Manaflow BandRuneUsually8.0%vs Yuumi15.2%+7.2 pts- E > W > Qthe E > W > Q skill orderSkill priorityUsuallyunder 0.5%vs Yuumi4.5%+4.5 pts
Health Potion + Health Potion + Stealth Ward + Oracle LensStarting itemsUsually1.9%vs Yuumi6.1%+4.2 pts
Best Swain Build vs Yuumi
Usual Swain build (Support)
80.0% win rate · 15 games
Against Yuumi
Not enough matchup-specific build data: only 3 of 16 Swain games against Yuumi carried a complete build, which is too few to recommend an item path from. Use Swain's standard build instead.
- Swain usually completes Rylai's Crystal Scepter first, at 12.3 min (median of 49 games).
- Yuumi usually completes Ardent Censer first, at 12.5 min (median of 25 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 Swain Runes vs Yuumi
Usual Swain runes (Support)
Electrocute
51.0% win rate · 576 games
Against Yuumi
Too few games for a matchup-specific rune page yet — use the usual page.
Plan your Swain 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
Swain matchup data for League of Legends patch 26.22. The table below shows Swain'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 Swain build, runes, laning stats, and early vs late game analysis for that specific matchup.
Other Swain Matchups
Hardest for Swain
Easiest for Swain
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.
Swain vs Yuumi FAQ - Patch 26.21–26.22
Who wins Swain vs Yuumi?
Current data slightly favors Yuumi, but the sample is too limited for a strong conclusion: Swain wins 49.2% of 122 games (95% range 40.5–57.9%).
What is Swain's win rate against Yuumi?
Swain wins 49.2% of 122 Support games against Yuumi on patch 26.21–26.22 (95% range 40.5–57.9%). Based on both champions' overall Support win rates, 51.3% would be expected.
Does Swain counter Yuumi?
Not clearly. Swain wins 49.2% of 122 games against Yuumi, and the 95% range (40.5–57.9%) includes 50%, so neither champion reliably counters the other on current data.
Who wins lane, Swain or Yuumi?
Swain usually wins the lane: 589 gold ahead of Yuumi at 15 minutes on average (65 games with a 15-minute snapshot).
Does Swain outscale Yuumi?
There are too few games of each length to tell yet.
When is Yuumi strongest against Swain?
On current data there is no stage of the game where Yuumi is ahead of Swain beyond the margin of error.
What should Swain build against Yuumi?
There are not enough games for a matchup-specific core, so use Swain's usual Support core: Rylai's Crystal Scepter, Spirit Visage, Unending Despair. The biggest change against Yuumi: Mercury's Treads (17.9% usually, 7.6% here).
What runes should Swain use against Yuumi?
Use Swain's usual Electrocute page (Domination + Precision); there are too few games for a matchup-specific page. The biggest change against Yuumi: Manaflow Band (8.0% usually, 15.2% here).