- Win Rate
- 49.9%
- Pick Rate
- 3.6%
- Ban Rate
- 1.8%
Senna vs Swain
- Patch
- 26.22
- Games
- 2,252
- Lane
- All Lanes
- Tier
- All Tiers
- Last Updated
- Nov 6, 2026 UTC
- Author
- Dakota Chinnick
- Methodology
- Data Methodology
Senna vs Swain is a decisive matchup in LoL patch 26.22. Swain wins with a 57.8% win rate (+15.6%) over Senna based on 64 games. Swain holds the advantage in both the early and late game. Below you'll find the best Senna build, runes, laning stats, and strategies for the Senna vs Swain matchup.
Senna Matchup Breakdown
Use the dropdown to select an opponent and see a detailed breakdown of how Senna 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 Senna vs Swain?
Senna wins 41.0% of these games. With this many games the true rate is most likely between 29.5% and 53.5% (95% range).
- Expected
- 50.9% From both champions' overall Support win rates
- Matchup effect
- −9.9 pts Observed minus expected
- Sample
- 61 games Lane: Support
- vs patch 26.21
- −11.7 pts Within normal patch-to-patch noise
Lane: Support · Ranked Solo/Duo & Flex · North America server · All ranks · Patch 26.22 · Nov 4 – Nov 6
Key takeaways
- Current data slightly favors Swain, but the sample is too limited for a strong conclusion: Senna wins 41.0% of 61 games (95% range 29.5–53.5%).
- Both champions' overall Support win rates predict 50.9% for Senna; 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 139, within the margin of error (61 games).
- Senna players pick Exhaust + Flash much less often against Swain: 12.2% of their other Support games, 3.3% 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 Senna and Swain 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 Senna'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.
Senna vs Swain Laning Stats
At 15 minutes
Whole-game averages
Senna vs Swain Win Rate by Game Length
Senna's win rate against Swain 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: Senna's results against Swain in short and long games are within the margin of error of each other.
Senna vs Swain 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)EvenSenna gold at 15: −139
- First itemSwainSenna: 14.7 min · Swain: 11.5 min
- Games under 20 minInsufficient data
- 20–30 min gamesInsufficient data
- 30+ min gamesInsufficient data
What Senna Changes Against Swain
Choices Senna players make noticeably more or less often in this matchup than in their other Support games.
Exhaust + FlashSummoner spellsUsually12.2%vs Swain3.3%−9.0 pts
Tenacity and Slow Resist (defense)Stat shardUsually3.7%vs Swain11.5%+7.7 pts
Usually3.5%vs Swain9.8%+6.3 pts
SorcerySecondary treeUsually4.4%vs Swain9.8%+5.5 pts
Flash + BarrierSummoner spellsUsually1.4%vs Swain6.6%+5.2 pts
ElectrocuteKeystoneUsuallyunder 0.5%vs Swain4.9%+4.9 pts
Usuallyunder 0.5%vs Swain3.3%+3.3 pts
Best Senna Build vs Swain
Usual Senna build (Support)
59.6% win rate · 260 games
Against Swain
Not enough matchup-specific build data: only 7 of 21 Senna games against Swain carried a complete build, which is too few to recommend an item path from. Use Senna's standard build instead.
- Senna usually completes Black Cleaver first, at 14.7 min (median of 33 games).
- Swain usually completes Rylai's Crystal Scepter first, at 11.5 min (median of 31 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 Senna Runes vs Swain
Usual Senna runes (Support)
Deathfire Touch
51.9% win rate · 345 games
Against Swain
Too few games for a matchup-specific rune page yet — use the usual page.
Plan your Senna 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
Senna matchup data for League of Legends patch 26.22. The table below shows Senna'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 Senna build, runes, laning stats, and early vs late game analysis for that specific matchup.
Other Senna Matchups
Hardest for Senna
Easiest for Senna
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.
Senna vs Swain FAQ - Patch 26.22
Who wins Senna vs Swain?
Current data slightly favors Swain, but the sample is too limited for a strong conclusion: Senna wins 41.0% of 61 games (95% range 29.5–53.5%).
What is Senna's win rate against Swain?
Senna wins 41.0% of 61 Support games against Swain on patch 26.22 (95% range 29.5–53.5%). Based on both champions' overall Support win rates, 50.9% would be expected.
Does Senna counter Swain?
Not clearly. Senna wins 41.0% of 61 games against Swain, and the 95% range (29.5–53.5%) includes 50%, so neither champion reliably counters the other on current data.
Who wins lane, Senna or Swain?
Neither side reliably wins the lane: the average gold difference at 15 minutes is 139, within the margin of error (61 games).
Does Senna outscale Swain?
There are too few games of each length to tell yet.
When is Swain strongest against Senna?
Swain is measurably ahead in: First item.
What should Senna build against Swain?
There are not enough games for a matchup-specific core, so use Senna's usual Support core: Rapid Firecannon, Statikk Shiv, Black Cleaver. The biggest change against Swain: Youmuu's Ghostblade (under 0.5% usually, 3.3% here).
What runes should Senna use against Swain?
Use Senna's usual Deathfire Touch page (Sorcery + Inspiration); there are too few games for a matchup-specific page. The biggest change against Swain: Exhaust + Flash (12.2% usually, 3.3% here).