- Win Rate
- 50.7%
- Pick Rate
- 2.3%
- Ban Rate
- 13.5%
Illaoi vs Gwen
- Patch
- 26.20
- Games
- 3,011
- Lane
- All Lanes
- Tier
- All Tiers
- Last Updated
- Oct 14, 2026 UTC
- Methodology
- Data Methodology
- Author
- Dakota Chinnick
Illaoi vs Gwen is a decisive matchup in LoL patch 26.20. Gwen wins with a 56.9% win rate (+13.7%) over Illaoi based on 51 games. Gwen holds the advantage in both the early and late game. Below you'll find the best Illaoi build, runes, laning stats, and strategies for the Illaoi vs Gwen matchup.
Illaoi Matchup Breakdown
Use the dropdown to select an opponent and see a detailed breakdown of how Illaoi 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 Illaoi vs Gwen?
Illaoi wins 44.9% of these games. With this many games the true rate is most likely between 31.9% and 58.7% (95% range).
- Expected
- 52.0% From both champions' overall Top win rates
- Matchup effect
- −7.1 pts Observed minus expected
- Sample
- 49 games Lane: Top
- vs patch 26.19
- — Not enough games on both patches
Lane: Top · Ranked Solo/Duo & Flex · North America server · All ranks · Patch 26.20 · Oct 10 – Oct 11
Key takeaways
- Current data slightly favors Gwen, but the sample is too limited for a strong conclusion: Illaoi wins 44.9% of 49 games (95% range 31.9–58.7%).
- Both champions' overall Top win rates predict 52.0% for Illaoi; 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 300, within the margin of error (48 games).
- Illaoi players pick Plated Steelcaps much less often against Gwen: 56.5% of their other Top games, 24.5% 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 Illaoi and Gwen 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 Illaoi'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.
Illaoi vs Gwen Laning Stats
At 15 minutes
Whole-game averages
Illaoi vs Gwen Win Rate by Game Length
Illaoi's win rate against Gwen 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: Illaoi's results against Gwen in short and long games are within the margin of error of each other.
Illaoi vs Gwen 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)EvenIllaoi gold at 15: +300
- First itemEvenIllaoi: 11.8 min · Gwen: 12.1 min
- Games under 20 minInsufficient data
- 20–30 min gamesInsufficient data
- 30+ min gamesInsufficient data
What Illaoi Changes Against Gwen
Choices Illaoi players make noticeably more or less often in this matchup than in their other Top games.
Plated SteelcapsBootsUsually56.5%vs Gwen24.5%−32.0 pts
Mercury's TreadsBootsUsually31.7%vs Gwen61.2%+29.6 pts46.7% WR here
ConquerorKeystoneUsually34.3%vs Gwen20.4%−13.9 pts
Exhaust + FlashSummoner spellsUsually14.8%vs Gwen26.5%+11.7 pts
HullbreakerItemUsually3.8%vs Gwen10.2%+6.4 pts
Usually2.3%vs Gwen8.2%+5.9 pts
Magical FootwearRuneUsuallyunder 0.5%vs Gwen4.1%+4.1 pts
Best Illaoi Build vs Gwen
Usual Illaoi build (Top)
79.6% win rate · 49 games
Against Gwen
Not enough matchup-specific build data: only 5 of 29 Illaoi games against Gwen carried a complete build, which is too few to recommend an item path from. Use Illaoi's standard build instead.
- Illaoi usually completes Black Cleaver first, at 11.8 min (median of 25 games).
- Gwen usually completes Dusk and Dawn first, at 12.1 min (median of 35 games).
- Skill priority: E > Q > 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 Illaoi Runes vs Gwen
Usual Illaoi runes (Top)
Grasp of the Undying
55.0% win rate · 327 games
Against Gwen
Grasp of the Undying33.3% win rate · 21 games
Plan your Illaoi 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
Illaoi matchup data for League of Legends patch 26.20. The table below shows Illaoi'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 Illaoi build, runes, laning stats, and early vs late game analysis for that specific matchup.
Other Illaoi Matchups
Hardest for Illaoi
Easiest for Illaoi
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.
Illaoi vs Gwen FAQ - Patch 26.20
Who wins Illaoi vs Gwen?
Current data slightly favors Gwen, but the sample is too limited for a strong conclusion: Illaoi wins 44.9% of 49 games (95% range 31.9–58.7%).
What is Illaoi's win rate against Gwen?
Illaoi wins 44.9% of 49 Top games against Gwen on patch 26.20 (95% range 31.9–58.7%). Based on both champions' overall Top win rates, 52.0% would be expected.
Does Illaoi counter Gwen?
Not clearly. Illaoi wins 44.9% of 49 games against Gwen, and the 95% range (31.9–58.7%) includes 50%, so neither champion reliably counters the other on current data.
Who wins lane, Illaoi or Gwen?
Neither side reliably wins the lane: the average gold difference at 15 minutes is 300, within the margin of error (48 games).
Does Illaoi outscale Gwen?
There are too few games of each length to tell yet.
When is Gwen strongest against Illaoi?
On current data there is no stage of the game where Gwen is ahead of Illaoi beyond the margin of error.
What should Illaoi build against Gwen?
There are not enough games for a matchup-specific core, so use Illaoi's usual Top core: Black Cleaver, Spirit Visage, Sterak's Gage. The biggest change against Gwen: Plated Steelcaps (56.5% usually, 24.5% here).
What runes should Illaoi use against Gwen?
Grasp of the Undying with Resolve and Precision — 33.3% over 21 games against Gwen. The biggest change against Gwen: Conqueror (34.3% usually, 20.4% here).