- Win Rate
- 50.2%
- Pick Rate
- 2.0%
- Ban Rate
- 1.4%
Janna vs Swain
- Patch
- 26.22
- Games
- 3,838
- Lane
- All Lanes
- Tier
- All Tiers
- Last Updated
- Nov 14, 2026 UTC
- Author
- Dakota Chinnick
- Methodology
- Data Methodology
Janna vs Swain (Support): Janna wins 53.4% of 116 ranked games over the last 2 patches (gold diff at 15: -264). Patch 26.22 build & runes.
Janna53.4%
Current data slightly favors Janna, but the sample is too limited for a strong conclusion: Janna wins 53.4% of 116 games (95% range 44.4–62.3%).
Janna Matchup Breakdown
Use the dropdown to select an opponent and see a detailed breakdown of how Janna 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 Janna vs Swain?
Janna wins 53.4% of these games. With this many games the true rate is most likely between 44.4% and 62.3% (95% range).
- Expected
- 51.3% From both champions' overall Support win rates
- Matchup effect
- +2.1 pts Observed minus expected
- Sample
- 116 games Lane: Support · Patch 26.21–26.22
- vs patch 26.21
- −7.9 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 (116 games). The lane, game-length, build and rune sections below use patch 26.22 only (51 games).
Key takeaways
- Current data slightly favors Janna, but the sample is too limited for a strong conclusion: Janna wins 53.4% of 116 games (95% range 44.4–62.3%).
- Both champions' overall Support win rates predict 51.3% for Janna; 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: 264 gold ahead of Janna at 15 minutes on average (51 games with a 15-minute snapshot).
- Janna players pick Relentless Hunter much less often against Swain: 45.8% of their other Support games, 29.4% 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 Janna 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 Janna'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.
Janna vs Swain Laning Stats
At 15 minutes
Whole-game averages
Janna vs Swain Win Rate by Game Length
Janna'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: Janna's results against Swain in short and long games are within the margin of error of each other.
Janna 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)SwainJanna gold at 15: −264
- First itemJannaJanna: 12.6 min · Swain: 13.3 min
- Games under 20 minInsufficient data
- 20–30 min gamesInsufficient data
- 30+ min gamesInsufficient data
What Janna Changes Against Swain
Choices Janna players make noticeably more or less often in this matchup than in their other Support games.
Usually45.8%vs Swain29.4%−16.4 pts
ResolveSecondary treeUsually47.0%vs Swain62.7%+15.7 pts50.0% WR here
Axiom ArcanistRuneUsually2.7%vs Swain9.8%+7.1 pts
Best Janna Build vs Swain
Usual Janna build (Support)
84.2% win rate · 57 games
Against Swain
Not enough matchup-specific build data: only 3 of 27 Janna games against Swain carried a complete build, which is too few to recommend an item path from. Use Janna's standard build instead.
- Janna usually completes Moonstone Renewer first, at 12.6 min (median of 28 games).
- Swain usually completes Rylai's Crystal Scepter first, at 13.3 min (median of 43 games).
- Skill priority: W > E > Q — 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 Janna Runes vs Swain
Usual Janna runes (Support)
Summon Aery
71.4% win rate · 21 games
Against Swain
Summon Aery
45.0% win rate · 20 games
Plan your Janna 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
Janna matchup data for League of Legends patch 26.22. The table below shows Janna'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 Janna build, runes, laning stats, and early vs late game analysis for that specific matchup.
Other Janna Matchups
Hardest for Janna
Easiest for Janna
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.
Janna vs Swain FAQ - Patch 26.21–26.22
Who wins Janna vs Swain?
Current data slightly favors Janna, but the sample is too limited for a strong conclusion: Janna wins 53.4% of 116 games (95% range 44.4–62.3%).
What is Janna's win rate against Swain?
Janna wins 53.4% of 116 Support games against Swain on patch 26.21–26.22 (95% range 44.4–62.3%). Based on both champions' overall Support win rates, 51.3% would be expected.
Does Janna counter Swain?
Not clearly. Janna wins 53.4% of 116 games against Swain, and the 95% range (44.4–62.3%) includes 50%, so neither champion reliably counters the other on current data.
Who wins lane, Janna or Swain?
Swain usually wins the lane: 264 gold ahead of Janna at 15 minutes on average (51 games with a 15-minute snapshot).
Does Janna outscale Swain?
There are too few games of each length to tell yet.
When is Swain strongest against Janna?
Swain is measurably ahead in: Lane (15 min).
What should Janna build against Swain?
There are not enough games for a matchup-specific core, so use Janna's usual Support core: Moonstone Renewer, Redemption, Mejai's Soulstealer.
What runes should Janna use against Swain?
Summon Aery with Sorcery and Resolve — 45.0% over 20 games against Swain. The biggest change against Swain: Relentless Hunter (45.8% usually, 29.4% here).