- Win Rate
- 50.3%
- Pick Rate
- 2.3%
- Ban Rate
- 4.0%
Dr. Mundo vs Olaf
- Patch
- 26.20
- Games
- 2,998
- Lane
- All Lanes
- Tier
- All Tiers
- Last Updated
- Oct 15, 2026 UTC
- Methodology
- Data Methodology
- Author
- Dakota Chinnick
Dr. Mundo vs Olaf is a decisive matchup in LoL patch 26.20. Dr. Mundo wins with a 56.0% win rate (+12.0%) over Olaf based on 25 games. Olaf wins the early laning phase while Dr. Mundo scales better into the late game. Below you'll find the best Dr. Mundo build, runes, laning stats, and strategies for the Dr. Mundo vs Olaf matchup.
Dr. Mundo Matchup Breakdown
Use the dropdown to select an opponent and see a detailed breakdown of how Dr. Mundo 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 Dr. Mundo vs Olaf?
Dr. Mundo wins 59.1% of these games. With this many games the true rate is most likely between 38.7% and 76.7% (95% range).
- Expected
- 50.9% From both champions' overall Top win rates
- Matchup effect
- +8.2 pts Observed minus expected
- Sample
- 22 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
They also met in another lane (Jungle): 3 games, Dr. Mundo won 33.3%.
Key takeaways
- Current data slightly favors Dr. Mundo, but the sample is too limited for a strong conclusion: Dr. Mundo wins 59.1% of 22 games (95% range 38.7–76.7%).
- Both champions' overall Top win rates predict 50.9% for Dr. Mundo; the result is within the margin of error of that, so this matchup mostly reflects the two champions' general strength.
- Dr. Mundo players pick Approach Velocity much less often against Olaf: 61.9% of their other Top games, 36.4% 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 Dr. Mundo and Olaf 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 Dr. Mundo'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.
Dr. Mundo vs Olaf Laning Stats
Only 22 games have a 15-minute snapshot so far — the lane-phase numbers appear from 30.
Whole-game averages
Dr. Mundo vs Olaf Win Rate by Game Length
Dr. Mundo's win rate against Olaf 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: Dr. Mundo's results against Olaf in short and long games are within the margin of error of each other.
Dr. Mundo vs Olaf 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 Dr. Mundo Changes Against Olaf
Choices Dr. Mundo players make noticeably more or less often in this matchup than in their other Top games.
Usually61.9%vs Olaf36.4%−25.6 pts- E > Q > Wthe E > Q > W skill orderSkill priorityUsually13.6%vs Olaf36.4%+22.7 pts
- Q > E > Wthe Q > E > W skill orderSkill priorityUsually84.3%vs Olaf63.6%−20.7 pts
Doran's Helm + Health PotionStarting itemsUsually18.8%vs Olaf38.1%+19.3 pts
Dead Man's PlateItemUsually3.9%vs Olaf13.6%+9.8 pts
Cosmic InsightRuneUsually1.0%vs Olaf9.1%+8.1 pts
Doran's Shield + Health Potion + Refillable PotionStarting itemsUsuallyunder 0.5%vs Olaf4.8%+4.8 pts
Usuallyunder 0.5%vs Olaf4.5%+4.5 pts
Best Dr. Mundo Build vs Olaf
Usual Dr. Mundo build (Top)
75.6% win rate · 45 games
Against Olaf
Not enough matchup-specific build data: only 5 of 13 Dr. Mundo games against Olaf carried a complete build, which is too few to recommend an item path from. Use Dr. Mundo'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 Dr. Mundo Runes vs Olaf
Usual Dr. Mundo runes (Top)
Grasp of the Undying
56.0% win rate · 277 games
Against Olaf
Too few games for a matchup-specific rune page yet — use the usual page.
Plan your Dr. Mundo 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
Dr. Mundo matchup data for League of Legends patch 26.20. The table below shows Dr. Mundo'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 Dr. Mundo build, runes, laning stats, and early vs late game analysis for that specific matchup.
Other Dr. Mundo Matchups
Hardest for Dr. Mundo
Easiest for Dr. Mundo
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.
Dr. Mundo vs Olaf FAQ - Patch 26.20
Who wins Dr. Mundo vs Olaf?
Current data slightly favors Dr. Mundo, but the sample is too limited for a strong conclusion: Dr. Mundo wins 59.1% of 22 games (95% range 38.7–76.7%).
What is Dr. Mundo's win rate against Olaf?
Dr. Mundo wins 59.1% of 22 Top games against Olaf on patch 26.20 (95% range 38.7–76.7%). Based on both champions' overall Top win rates, 50.9% would be expected.
Does Dr. Mundo counter Olaf?
Not clearly. Dr. Mundo wins 59.1% of 22 games against Olaf, and the 95% range (38.7–76.7%) includes 50%, so neither champion reliably counters the other on current data.
Who wins lane, Dr. Mundo or Olaf?
There are not enough games with a 15-minute snapshot yet (22) to say who wins lane.
Does Dr. Mundo outscale Olaf?
There are too few games of each length to tell yet.
When is Olaf strongest against Dr. Mundo?
On current data there is no stage of the game where Olaf is ahead of Dr. Mundo beyond the margin of error.
What should Dr. Mundo build against Olaf?
There are not enough games for a matchup-specific core, so use Dr. Mundo's usual Top core: Dead Man's Plate, Heartsteel, Warmog's Armor. The biggest change against Olaf: Doran's Helm + Health Potion (18.8% usually, 38.1% here).
What runes should Dr. Mundo use against Olaf?
Use Dr. Mundo's usual Grasp of the Undying page (Resolve + Inspiration); there are too few games for a matchup-specific page. The biggest change against Olaf: Approach Velocity (61.9% usually, 36.4% here).