- Win Rate
- 49.2%
- Pick Rate
- 1.5%
- Ban Rate
- 0.5%
Gragas vs Illaoi
- Patch
- 26.20
- Games
- 1,968
- Lane
- All Lanes
- Tier
- All Tiers
- Last Updated
- Oct 15, 2026 UTC
- Methodology
- Data Methodology
- Author
- Dakota Chinnick
Gragas vs Illaoi is a decisive matchup in LoL patch 26.20. Gragas wins with a 56.3% win rate (+12.5%) over Illaoi based on 16 games. Illaoi wins the early laning phase while Gragas scales better into the late game. Below you'll find the best Gragas build, runes, laning stats, and strategies for the Gragas vs Illaoi matchup.
Gragas Matchup Breakdown
Use the dropdown to select an opponent and see a detailed breakdown of how Gragas 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 Gragas vs Illaoi?
Gragas wins 64.3% of these games. With this many games the true rate is most likely between 38.8% and 83.7% (95% range).
- Expected
- 47.4% From both champions' overall Top win rates
- Matchup effect
- +16.9 pts Observed minus expected
- Sample
- 14 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
- Only 14 Gragas vs Illaoi games were recorded in the Top role on patch 26.20 — too few to say who is favored. Treat the numbers below as provisional.
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 Gragas and Illaoi 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 Gragas'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.
Gragas vs Illaoi Laning Stats
Only 13 games have a 15-minute snapshot so far — the lane-phase numbers appear from 30.
Whole-game averages
Gragas vs Illaoi Win Rate by Game Length
Gragas's win rate against Illaoi 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: Gragas's results against Illaoi in short and long games are within the margin of error of each other.
Gragas vs Illaoi 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)Insufficient data
- First itemInsufficient data
- Games under 20 minInsufficient data
- 20–30 min gamesInsufficient data
- 30+ min gamesInsufficient data
What Gragas Changes Against Illaoi
Only 14 games so far — too few to compare what Gragas players do in this matchup with their usual choices (needs 20).
Best Gragas Build vs Illaoi
Against Illaoi
Not enough matchup-specific build data: only 0 of 14 Gragas games against Illaoi carried a complete build, which is too few to recommend an item path from. Use Gragas's standard build instead.
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 Gragas Runes vs Illaoi
Usual Gragas runes (Top)
Stormraider's Surge
46.2% win rate · 370 games
Against Illaoi
Too few games for a matchup-specific rune page yet — use the usual page.
Plan your Gragas 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
Gragas matchup data for League of Legends patch 26.20. The table below shows Gragas'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 Gragas build, runes, laning stats, and early vs late game analysis for that specific matchup.
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.
Gragas vs Illaoi FAQ - Patch 26.20
Who wins Gragas vs Illaoi?
Only 14 Gragas vs Illaoi games were recorded in the Top role on patch 26.20 — too few to say who is favored. Treat the numbers below as provisional.
What is Gragas's win rate against Illaoi?
Gragas wins 64.3% of 14 Top games against Illaoi on patch 26.20 (95% range 38.8–83.7%). Based on both champions' overall Top win rates, 47.4% would be expected.
Does Gragas counter Illaoi?
There are only 14 Gragas vs Illaoi games in this lane on patch 26.20 — too few to answer reliably yet.
Who wins lane, Gragas or Illaoi?
There are not enough games with a 15-minute snapshot yet (13) to say who wins lane.
Does Gragas outscale Illaoi?
There are too few games of each length to tell yet.
When is Illaoi strongest against Gragas?
On current data there is no stage of the game where Illaoi is ahead of Gragas beyond the margin of error.
What should Gragas build against Illaoi?
There are not enough games for a matchup-specific core, so use Gragas's usual Top core: Stormsurge, Shadowflame, Lich Bane.
What runes should Gragas use against Illaoi?
Use Gragas's usual Stormraider's Surge page (Sorcery + Inspiration); there are too few games for a matchup-specific page.