- Win Rate
- 47.0%
- Pick Rate
- 3.7%
- Ban Rate
- 22.7%
Locke vs Katarina
- Patch
- 26.21
- Games
- 7,486
- Lane
- All Lanes
- Tier
- All Tiers
- Last Updated
- Nov 2, 2026 UTC
- Author
- Dakota Chinnick
- Methodology
- Data Methodology
Locke vs Katarina is a decisive matchup in LoL patch 26.21. Katarina wins with a 58.9% win rate (+17.8%) over Locke based on 146 games. Katarina holds the advantage in both the early and late game. Below you'll find the best Locke build, runes, laning stats, and strategies for the Locke vs Katarina matchup.
Locke Matchup Breakdown
Use the dropdown to select an opponent and see a detailed breakdown of how Locke 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 Locke vs Katarina?
Locke wins 41.7% of these games. With this many games the true rate is most likely between 33.9% and 49.8% (95% range).
- Expected
- 47.3% From both champions' overall Mid win rates
- Matchup effect
- −5.7 pts Observed minus expected
- Sample
- 144 games Lane: Mid
- vs patch 26.20
- +0.6 pts Within normal patch-to-patch noise
Lane: Mid · Ranked Solo/Duo & Flex · North America server · All ranks · Patch 26.21 · Oct 27 – Nov 2
Key takeaways
- Katarina is favored in this matchup: Locke wins 41.7% of 144 games, and the whole 95% range (33.9–49.8%) is on the same side of 50%.
- Both champions' overall Mid win rates predict 47.3% for Locke; 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 81, within the margin of error (142 games).
- Locke players pick Treasure Hunter much less often against Katarina: 45.1% of their other Mid games, 34.0% 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 Locke and Katarina 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 Locke'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.
Locke vs Katarina Laning Stats
At 15 minutes
Whole-game averages
Locke vs Katarina Win Rate by Game Length
Locke's win rate against Katarina 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: Locke's results against Katarina in short and long games are within the margin of error of each other.
Locke vs Katarina 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)EvenLocke gold at 15: +81
- First itemEvenLocke: 11.0 min · Katarina: 11.0 min
- Games under 20 minInsufficient data
- 20–30 min gamesEvenLocke wins 37.3% of 51 games
- 30+ min gamesEvenLocke wins 44.6% of 74 games
What Locke Changes Against Katarina
Choices Locke players make noticeably more or less often in this matchup than in their other Mid games.
Treasure HunterRuneUsually45.1%vs Katarina34.0%−11.1 pts49.0% WR here
Ultimate HunterRuneUsually44.5%vs Katarina55.6%+11.0 pts36.3% WR here
ResolveSecondary treeUsually48.7%vs Katarina58.3%+9.6 pts38.1% WR here
RevitalizeRuneUsually46.0%vs Katarina55.6%+9.6 pts37.5% WR here
PrecisionSecondary treeUsually46.5%vs Katarina37.5%−9.0 pts48.1% WR here
Usually25.6%vs Katarina33.3%+7.7 pts52.1% WR here
Best Locke Build vs Katarina
Usual Locke build (Mid)
92.1% win rate · 38 games
Against Katarina
Not enough matchup-specific build data: only 19 of 91 Locke games against Katarina carried a complete build, which is too few to recommend an item path from. Use Locke's standard build instead.
- Locke usually completes Lich Bane first, at 11.0 min (median of 117 games).
- Katarina usually completes Lich Bane first, at 11.0 min (median of 79 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 Locke Runes vs Katarina
Usual Locke runes (Mid)
Electrocute
47.9% win rate · 1,814 games
Against Katarina
Electrocute46.9% win rate · 32 games
Plan your Locke 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
Locke matchup data for League of Legends patch 26.21. The table below shows Locke'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 Locke build, runes, laning stats, and early vs late game analysis for that specific matchup.
Other Locke Matchups
Hardest for Locke
Easiest for Locke
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.
Locke vs Katarina FAQ - Patch 26.21
Who wins Locke vs Katarina?
Katarina is favored in this matchup: Locke wins 41.7% of 144 games, and the whole 95% range (33.9–49.8%) is on the same side of 50%.
What is Locke's win rate against Katarina?
Locke wins 41.7% of 144 Mid games against Katarina on patch 26.21 (95% range 33.9–49.8%). Based on both champions' overall Mid win rates, 47.3% would be expected.
Does Locke counter Katarina?
No — it is the other way around: Locke wins only 41.7% of 144 games against Katarina, and the whole 95% range is below 50%.
Who wins lane, Locke or Katarina?
Neither side reliably wins the lane: the average gold difference at 15 minutes is 81, within the margin of error (142 games).
Does Locke outscale Katarina?
There are too few games of each length to tell yet.
When is Katarina strongest against Locke?
On current data there is no stage of the game where Katarina is ahead of Locke beyond the margin of error.
What should Locke build against Katarina?
There are not enough games for a matchup-specific core, so use Locke's usual Mid core: Stormsurge, Lich Bane, Mejai's Soulstealer. The biggest change against Katarina: Rabadon's Deathcap (25.6% usually, 33.3% here).
What runes should Locke use against Katarina?
Electrocute with Domination and Precision — 46.9% over 32 games against Katarina. The biggest change against Katarina: Treasure Hunter (45.1% usually, 34.0% here).