- Win Rate
- 50.2%
- Pick Rate
- 2.6%
- Ban Rate
- 3.8%
Dr. Mundo vs Sion
- Patch
- 26.22
- Games
- 5,058
- Lane
- All Lanes
- Tier
- All Tiers
- Last Updated
- Nov 14, 2026 UTC
- Author
- Dakota Chinnick
- Methodology
- Data Methodology
Dr. Mundo vs Sion (Top): Dr. Mundo wins 59.0% of 134 ranked games over the last 2 patches (gold diff at 15: -125). Patch 26.22 build & runes.
Dr. Mundo59.0%
Dr. Mundo is favored in this matchup: Dr. Mundo wins 59.0% of 134 games, and the whole 95% range (50.5–66.9%) is on the same side of 50%.
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 Sion?
Dr. Mundo wins 59.0% of these games. With this many games the true rate is most likely between 50.5% and 66.9% (95% range).
- Expected
- 50.6% From both champions' overall Top win rates
- Matchup effect
- +8.4 pts Observed minus expected
- Sample
- 134 games Lane: Top · Patch 26.21–26.22
- vs patch 26.21
- +19.8 pts A real change since last patch
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 (134 games). The lane, game-length, build and rune sections below use patch 26.22 only (79 games).
They also met in another lane (Jungle): 3 games, Dr. Mundo won 0.0%.
Key takeaways
- Dr. Mundo is favored in this matchup: Dr. Mundo wins 59.0% of 134 games, and the whole 95% range (50.5–66.9%) is on the same side of 50%.
- Both champions' overall Top win rates predict 50.6% for Dr. Mundo; 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 125, within the margin of error (79 games).
- Dr. Mundo players pick Overlord's Bloodmail far more often against Sion: 7.6% of their other Top games, 15.2% 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 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 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 Sion Laning Stats
At 15 minutes
Whole-game averages
Dr. Mundo vs Sion Win Rate by Game Length
Dr. Mundo'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: Dr. Mundo's results against Sion in short and long games are within the margin of error of each other.
Dr. Mundo 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)EvenDr. Mundo gold at 15: −125
- First itemSionDr. Mundo: 13.0 min · Sion: 11.4 min
- Games under 20 minInsufficient data
- 20–30 min gamesInsufficient data
- 30+ min gamesInsufficient data
What Dr. Mundo Changes Against Sion
Choices Dr. Mundo players make noticeably more or less often in this matchup than in their other Top games.
Usually7.6%vs Sion15.2%+7.6 pts
ConditioningRuneUsually6.9%vs Sion13.9%+7.0 pts
Unending DespairItemUsually5.0%vs Sion10.1%+5.2 pts
Best Dr. Mundo Build vs Sion
Usual Dr. Mundo build (Top)
62.1% win rate · 766 games
Against Sion
Not enough matchup-specific build data: only 19 of 51 Dr. Mundo games against Sion carried a complete build, which is too few to recommend an item path from. Use Dr. Mundo's standard build instead.
- Dr. Mundo usually completes Warmog's Armor first, at 13.0 min (median of 43 games).
- Sion usually completes Heartsteel first, at 11.4 min (median of 49 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 Dr. Mundo Runes vs Sion
Usual Dr. Mundo runes (Top)
Grasp of the Undying
51.2% win rate · 1,534 games
Against Sion
Grasp of the Undying77.4% win rate · 31 games
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 26.22. 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 Sion FAQ - Patch 26.21–26.22
Who wins Dr. Mundo vs Sion?
Dr. Mundo is favored in this matchup: Dr. Mundo wins 59.0% of 134 games, and the whole 95% range (50.5–66.9%) is on the same side of 50%.
What is Dr. Mundo's win rate against Sion?
Dr. Mundo wins 59.0% of 134 Top games against Sion on patch 26.21–26.22 (95% range 50.5–66.9%). Based on both champions' overall Top win rates, 50.6% would be expected.
Does Dr. Mundo counter Sion?
Yes. Dr. Mundo wins 59.0% of 134 games against Sion on patch 26.21–26.22, and the whole 95% range is above 50%.
Who wins lane, Dr. Mundo or Sion?
Neither side reliably wins the lane: the average gold difference at 15 minutes is 125, within the margin of error (79 games).
Does Dr. Mundo outscale Sion?
There are too few games of each length to tell yet.
When is Sion strongest against Dr. Mundo?
Sion is measurably ahead in: First item.
What should Dr. Mundo build against Sion?
There are not enough games for a matchup-specific core, so use Dr. Mundo's usual Top core: Titanic Hydra, Heartsteel, Warmog's Armor. The biggest change against Sion: Overlord's Bloodmail (7.6% usually, 15.2% here).
What runes should Dr. Mundo use against Sion?
Grasp of the Undying with Resolve and Inspiration — 77.4% over 31 games against Sion. The biggest change against Sion: Conditioning (6.9% usually, 13.9% here).