- Win Rate
- 49.3%
- Pick Rate
- 2.9%
- Ban Rate
- 6.2%
Katarina vs Heimerdinger
- Patch
- 26.20
- Games
- 3,799
- Lane
- All Lanes
- Tier
- All Tiers
- Last Updated
- Oct 15, 2026 UTC
- Methodology
- Data Methodology
- Author
- Dakota Chinnick
Katarina vs Heimerdinger is a decisive matchup in LoL patch 26.20. Heimerdinger wins with a 58.3% win rate (+16.7%) over Katarina based on 24 games. Heimerdinger wins the early laning phase while Katarina scales better into the late game. Below you'll find the best Katarina build, runes, laning stats, and strategies for the Katarina vs Heimerdinger matchup.
Katarina Matchup Breakdown
Use the dropdown to select an opponent and see a detailed breakdown of how Katarina 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 Katarina vs Heimerdinger?
Katarina wins 39.1% of these games. With this many games the true rate is most likely between 22.2% and 59.2% (95% range).
- Expected
- 46.7% From both champions' overall Mid win rates
- Matchup effect
- −7.6 pts Observed minus expected
- Sample
- 23 games Lane: Mid
- vs patch 26.19
- — Not enough games on both patches
Lane: Mid · Ranked Solo/Duo & Flex · North America server · All ranks · Patch 26.20 · Oct 10 – Oct 11
Key takeaways
- Current data slightly favors Heimerdinger, but the sample is too limited for a strong conclusion: Katarina wins 39.1% of 23 games (95% range 22.2–59.2%).
- Both champions' overall Mid win rates predict 46.7% for Katarina; the result is within the margin of error of that, so this matchup mostly reflects the two champions' general strength.
- Katarina players pick Zhonya's Hourglass much less often against Heimerdinger: 28.3% of their other Mid games, 4.3% 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 Katarina and Heimerdinger 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 Katarina'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.
Katarina vs Heimerdinger Laning Stats
Only 23 games have a 15-minute snapshot so far — the lane-phase numbers appear from 30.
Whole-game averages
Katarina vs Heimerdinger Win Rate by Game Length
Katarina's win rate against Heimerdinger 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: Katarina's results against Heimerdinger in short and long games are within the margin of error of each other.
Katarina vs Heimerdinger 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 Katarina Changes Against Heimerdinger
Choices Katarina players make noticeably more or less often in this matchup than in their other Mid games.
Usually28.3%vs Heimerdinger4.3%−24.0 pts
Chainlaced CrushersBootsUsually14.3%vs Heimerdinger34.8%+20.5 pts
Doran's Blade + Health PotionStarting itemsUsually18.3%vs Heimerdingerunder 2%−18.3 pts
Kaenic RookernItemUsuallyunder 0.5%vs Heimerdinger4.3%+4.3 pts
HeartsteelItemUsuallyunder 0.5%vs Heimerdinger4.3%+4.3 pts
Long Sword + Health Potion + Stealth WardStarting itemsUsuallyunder 0.5%vs Heimerdinger4.3%+4.3 pts
Doran's Shield + Health Potion + Refillable Potion + Stealth WardStarting itemsUsuallyunder 0.5%vs Heimerdinger4.3%+4.3 pts
DemolishRuneUsuallyunder 0.5%vs Heimerdinger4.3%+4.3 pts
Best Katarina Build vs Heimerdinger
Usual Katarina build (Mid)
74.4% win rate · 39 games
Against Heimerdinger
Not enough matchup-specific build data: only 3 of 12 Katarina games against Heimerdinger carried a complete build, which is too few to recommend an item path from. Use Katarina'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 Katarina Runes vs Heimerdinger
Usual Katarina runes (Mid)
Conqueror
78.9% win rate · 19 games
Against Heimerdinger
Too few games for a matchup-specific rune page yet — use the usual page.
Plan your Katarina 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
Katarina matchup data for League of Legends patch 26.20. The table below shows Katarina'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 Katarina build, runes, laning stats, and early vs late game analysis for that specific matchup.
Other Katarina Matchups
Hardest for Katarina
Easiest for Katarina
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.
Katarina vs Heimerdinger FAQ - Patch 26.20
Who wins Katarina vs Heimerdinger?
Current data slightly favors Heimerdinger, but the sample is too limited for a strong conclusion: Katarina wins 39.1% of 23 games (95% range 22.2–59.2%).
What is Katarina's win rate against Heimerdinger?
Katarina wins 39.1% of 23 Mid games against Heimerdinger on patch 26.20 (95% range 22.2–59.2%). Based on both champions' overall Mid win rates, 46.7% would be expected.
Does Katarina counter Heimerdinger?
Not clearly. Katarina wins 39.1% of 23 games against Heimerdinger, and the 95% range (22.2–59.2%) includes 50%, so neither champion reliably counters the other on current data.
Who wins lane, Katarina or Heimerdinger?
There are not enough games with a 15-minute snapshot yet (23) to say who wins lane.
Does Katarina outscale Heimerdinger?
There are too few games of each length to tell yet.
When is Heimerdinger strongest against Katarina?
On current data there is no stage of the game where Heimerdinger is ahead of Katarina beyond the margin of error.
What should Katarina build against Heimerdinger?
There are not enough games for a matchup-specific core, so use Katarina's usual Mid core: Shadowflame, Lich Bane, Mejai's Soulstealer. The biggest change against Heimerdinger: Zhonya's Hourglass (28.3% usually, 4.3% here).
What runes should Katarina use against Heimerdinger?
Use Katarina's usual Conqueror page (Precision + Resolve); there are too few games for a matchup-specific page. The biggest change against Heimerdinger: Demolish (under 0.5% usually, 4.3% here).