- Win Rate
- 51.5%
- Pick Rate
- 2.3%
- Ban Rate
- 4.0%
Gwen vs Sion
- Patch
- 26.22
- Games
- 4,441
- Lane
- All Lanes
- Tier
- All Tiers
- Last Updated
- Nov 14, 2026 UTC
- Author
- Dakota Chinnick
- Methodology
- Data Methodology
Gwen vs Sion (Top): Gwen wins 50.6% of 170 ranked games over the last 2 patches (gold diff at 15: +416). Patch 26.22 build & runes.
Gwen50.6%
Gwen vs Sion is an even matchup: Gwen wins 50.6% of 170 games, and the 95% range (43.1–58.0%) comfortably includes 50%.
Gwen Matchup Breakdown
Use the dropdown to select an opponent and see a detailed breakdown of how Gwen 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 Gwen vs Sion?
Gwen wins 50.6% of these games. With this many games the true rate is most likely between 43.1% and 58.0% (95% range).
- Expected
- 50.9% From both champions' overall Top win rates
- Matchup effect
- −0.3 pts Observed minus expected
- Sample
- 170 games Lane: Top · Patch 26.21–26.22
- vs patch 26.21
- −7.0 pts Within normal patch-to-patch noise
Lane: Top · Ranked Solo/Duo & Flex · North America server · All ranks · Patch 26.21–26.22 · Oct 27 – Nov 13
The headline win rate covers patches 26.21–26.22 (170 games). The lane, game-length, build and rune sections below use patch 26.22 only (83 games).
They also met in another lane (Jungle): 11 games, Gwen won 27.3%.
Key takeaways
- Gwen vs Sion is an even matchup: Gwen wins 50.6% of 170 games, and the 95% range (43.1–58.0%) comfortably includes 50%.
- Both champions' overall Top win rates predict 50.9% for Gwen; the result is within the margin of error of that, so this matchup mostly reflects the two champions' general strength.
- Gwen usually wins the lane: 416 gold ahead of Sion at 15 minutes on average (83 games with a 15-minute snapshot).
- Gwen players pick Riftmaker far more often against Sion: 31.8% of their other Top games, 49.4% 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 Gwen and Sion 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 Gwen'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.
Gwen vs Sion Laning Stats
At 15 minutes
Whole-game averages
Gwen vs Sion Win Rate by Game Length
Gwen's win rate against Sion 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: Gwen's results against Sion in short and long games are within the margin of error of each other.
Gwen vs Sion 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)GwenGwen gold at 15: +416
- First itemGwenGwen: 11.4 min · Sion: 12.2 min
- Games under 20 minInsufficient data
- 20–30 min gamesEvenGwen wins 45.5% of 44 games
- 30+ min gamesInsufficient data
What Gwen Changes Against Sion
Choices Gwen players make noticeably more or less often in this matchup than in their other Top games.
RiftmakerItemUsually31.8%vs Sion49.4%+17.6 pts39.0% WR here
Nashor's ToothItemUsually24.1%vs Sion34.9%+10.9 pts48.3% WR here
Flash + TeleportSummoner spellsUsually14.4%vs Sion24.1%+9.7 pts60.0% WR here
Health (defense)Stat shardUsually15.7%vs Sion25.3%+9.7 pts47.6% WR here- Health Scaling (defense)Stat shardUsually81.8%vs Sion72.3%−9.5 pts46.7% WR here
Best Gwen Build vs Sion
Usual Gwen build (Top)
61.4% win rate · 303 games
Against Sion
Not enough matchup-specific build data: only 11 of 54 Gwen games against Sion carried a complete build, which is too few to recommend an item path from. Use Gwen's standard build instead.
- Gwen usually completes Dusk and Dawn first, at 11.4 min (median of 56 games).
- Sion usually completes Hollow Radiance first, at 12.2 min (median of 43 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 Gwen Runes vs Sion
Usual Gwen runes (Top)
Conqueror
69.6% win rate · 23 games
Against Sion
Conqueror
50.0% win rate · 22 games
Plan your Gwen 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
Gwen matchup data for League of Legends patch 26.22. The table below shows Gwen'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 Gwen build, runes, laning stats, and early vs late game analysis for that specific matchup.
Other Gwen Matchups
Hardest for Gwen
Easiest for Gwen
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.
Gwen vs Sion FAQ - Patch 26.21–26.22
Who wins Gwen vs Sion?
Gwen vs Sion is an even matchup: Gwen wins 50.6% of 170 games, and the 95% range (43.1–58.0%) comfortably includes 50%.
What is Gwen's win rate against Sion?
Gwen wins 50.6% of 170 Top games against Sion on patch 26.21–26.22 (95% range 43.1–58.0%). Based on both champions' overall Top win rates, 50.9% would be expected.
Does Gwen counter Sion?
Not clearly. Gwen wins 50.6% of 170 games against Sion, and the 95% range (43.1–58.0%) includes 50%, so neither champion reliably counters the other on current data.
Who wins lane, Gwen or Sion?
Gwen usually wins the lane: 416 gold ahead of Sion at 15 minutes on average (83 games with a 15-minute snapshot).
Does Gwen outscale Sion?
There are too few games of each length to tell yet.
When is Sion strongest against Gwen?
On current data there is no stage of the game where Sion is ahead of Gwen beyond the margin of error.
What should Gwen build against Sion?
There are not enough games for a matchup-specific core, so use Gwen's usual Top core: Shadowflame, Rabadon's Deathcap, Dusk and Dawn. The biggest change against Sion: Riftmaker (31.8% usually, 49.4% here).
What runes should Gwen use against Sion?
Conqueror with Precision and Resolve — 50.0% over 22 games against Sion. The biggest change against Sion: Flash + Teleport (14.4% usually, 24.1% here).