- Win Rate
- 51.0%
- Pick Rate
- 1.5%
- Ban Rate
- 2.4%
Olaf vs Illaoi
- Patch
- 26.19
- Games
- 1,354
- Lane
- All Lanes
- Tier
- All Tiers
- Last Updated
- Oct 5, 2026 UTC
- Methodology
- Data Methodology
- Author
- Dakota Chinnick
Olaf vs Illaoi is a very close matchup in LoL patch 26.19. Olaf wins with a 50.0% win rate (+0.0%) over Illaoi based on 16 games. Olaf wins the early laning phase while Illaoi scales better into the late game. Below you'll find the best Olaf build, runes, laning stats, and strategies for the Olaf vs Illaoi matchup.
Olaf Matchup Breakdown
Use the dropdown to select an opponent and see a detailed breakdown of how Olaf 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 Olaf vs Illaoi?
Olaf wins 27.0% of these games. With this many games the true rate is most likely between 15.4% and 43.0% (95% range).
- Expected
- 49.6% From both champions' overall Top win rates
- Matchup effect
- −22.6 pts Observed minus expected
- Sample
- 37 games Lane: Top
- vs patch 26.18
- — Not enough games on both patches
Lane: Top · Ranked Solo/Duo & Flex · North America server · All ranks · Patch 26.19 · Sep 24 – Sep 28
Key takeaways
- Illaoi is favored in this matchup: Olaf wins 27.0% of 37 games, and the whole 95% range (15.4–43.0%) is on the same side of 50%.
- That is 22.6 points worse for Olaf than both champions' overall Top win rates predict (49.6%), so the matchup itself works against this pick.
- Illaoi usually wins the lane: 820 gold ahead of Olaf at 15 minutes on average (36 games with a 15-minute snapshot).
- Olaf players pick Ghost + Ignite far more often against Illaoi: 5.0% of their other Top games, 13.5% 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 Olaf 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 Olaf'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.
Olaf vs Illaoi Laning Stats
At 15 minutes
Whole-game averages
Olaf vs Illaoi Win Rate by Game Length
Olaf'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: Olaf's results against Illaoi in short and long games are within the margin of error of each other.
Olaf 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)IllaoiOlaf gold at 15: −820
- First itemInsufficient data
- Games under 20 minInsufficient data
- 20–30 min gamesInsufficient data
- 30+ min gamesInsufficient data
What Olaf Changes Against Illaoi
Choices Olaf players make noticeably more or less often in this matchup than in their other Top games.
Ghost + IgniteSummoner spellsUsually5.0%vs Illaoi13.5%+8.6 pts
Usually1.8%vs Illaoi8.1%+6.3 pts
Doran's Blade + Health Potion + Health PotionStarting itemsUsually0.7%vs Illaoi5.4%+4.7 pts
Guardian AngelItemUsually0.7%vs Illaoi5.4%+4.7 pts
Best Olaf Build vs Illaoi
Usual Olaf build (Top)
83.3% win rate · 24 games
Against Illaoi
Not enough matchup-specific build data: only 2 of 17 Olaf games against Illaoi carried a complete build, which is too few to recommend an item path from. Use Olaf's standard build instead.
- 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 Olaf Runes vs Illaoi
Usual Olaf runes (Top)
Conqueror
51.3% win rate · 733 games
Against Illaoi
Too few games for a matchup-specific rune page yet — use the usual page.
Plan your Olaf 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
Olaf matchup data for League of Legends patch 26.19. The table below shows Olaf'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 Olaf build, runes, laning stats, and early vs late game analysis for that specific matchup.
Other Olaf Matchups
Hardest for Olaf
Easiest for Olaf
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.
Olaf vs Illaoi FAQ - Patch 26.19
Who wins Olaf vs Illaoi?
Illaoi is favored in this matchup: Olaf wins 27.0% of 37 games, and the whole 95% range (15.4–43.0%) is on the same side of 50%.
What is Olaf's win rate against Illaoi?
Olaf wins 27.0% of 37 Top games against Illaoi on patch 26.19 (95% range 15.4–43.0%). Based on both champions' overall Top win rates, 49.6% would be expected.
Does Olaf counter Illaoi?
No — it is the other way around: Olaf wins only 27.0% of 37 games against Illaoi, and the whole 95% range is below 50%.
Who wins lane, Olaf or Illaoi?
Illaoi usually wins the lane: 820 gold ahead of Olaf at 15 minutes on average (36 games with a 15-minute snapshot).
Does Olaf outscale Illaoi?
There are too few games of each length to tell yet.
When is Illaoi strongest against Olaf?
Illaoi is measurably ahead in: Lane (15 min).
What should Olaf build against Illaoi?
There are not enough games for a matchup-specific core, so use Olaf's usual Top core: Immortal Shieldbow, Death's Dance, Ravenous Hydra. The biggest change against Illaoi: Immortal Shieldbow (1.8% usually, 8.1% here).
What runes should Olaf use against Illaoi?
Use Olaf's usual Conqueror page (Precision + Inspiration); there are too few games for a matchup-specific page. The biggest change against Illaoi: Ghost + Ignite (5.0% usually, 13.5% here).