- Win Rate
- 50.2%
- Pick Rate
- 2.7%
- Ban Rate
- 6.3%
Katarina vs Vex
- Patch
- 26.22
- Games
- 2,561
- Lane
- All Lanes
- Tier
- All Tiers
- Last Updated
- Nov 7, 2026 UTC
- Author
- Dakota Chinnick
- Methodology
- Data Methodology
Katarina vs Vex is a decisive matchup in LoL patch 26.22. Vex wins with a 66.7% win rate (+33.3%) over Katarina based on 54 games. Vex holds the advantage in both the early and late game. Below you'll find the best Katarina build, runes, laning stats, and strategies for the Katarina vs Vex matchup.
Katarina34.6%
Vex is favored in this matchup: Katarina wins 34.6% of 52 games, and the whole 95% range (23.2–48.2%) is on the same side of 50%.
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 Vex?
Katarina wins 34.6% of these games. With this many games the true rate is most likely between 23.2% and 48.2% (95% range).
- Expected
- 47.9% From both champions' overall Mid win rates
- Matchup effect
- −13.3 pts Observed minus expected
- Sample
- 52 games Lane: Mid
- vs patch 26.21
- −13.5 pts Within normal patch-to-patch noise
Lane: Mid · Ranked Solo/Duo & Flex · North America server · All ranks · Patch 26.22 · Nov 4 – Nov 7
Key takeaways
- Vex is favored in this matchup: Katarina wins 34.6% of 52 games, and the whole 95% range (23.2–48.2%) is on the same side of 50%.
- Both champions' overall Mid win rates predict 47.9% for Katarina; 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 419, within the margin of error (51 games).
- Katarina players pick Resolve far more often against Vex: 17.5% of their other Mid games, 28.8% 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 Vex 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 Vex Laning Stats
At 15 minutes
Whole-game averages
Katarina vs Vex Win Rate by Game Length
Katarina's win rate against Vex 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 Vex in short and long games are within the margin of error of each other.
Katarina vs Vex 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)EvenKatarina gold at 15: −419
- First itemVexKatarina: 11.7 min · Vex: 10.9 min
- Games under 20 minInsufficient data
- 20–30 min gamesInsufficient data
- 30+ min gamesInsufficient data
What Katarina Changes Against Vex
Choices Katarina players make noticeably more or less often in this matchup than in their other Mid games.
ResolveSecondary treeUsually17.5%vs Vex28.8%+11.4 pts
Doran's Shield + Health Potion + Stealth WardStarting itemsUsually3.8%vs Vex13.5%+9.7 pts- Q > E > Wthe Q > E > W skill orderSkill priorityUsually89.1%vs Vex98.1%+9.0 pts35.3% WR here
Second WindRuneUsually5.1%vs Vex11.5%+6.4 pts
Legend: HasteRuneUsually1.6%vs Vex7.7%+6.1 pts
Best Katarina Build vs Vex
Usual Katarina build (Mid)
69.0% win rate · 113 games
Against Vex
Not enough matchup-specific build data: only 10 of 28 Katarina games against Vex carried a complete build, which is too few to recommend an item path from. Use Katarina's standard build instead.
- Katarina usually completes Lich Bane first, at 11.7 min (median of 28 games).
- Vex usually completes Luden's Echo first, at 10.9 min (median of 43 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 Katarina Runes vs Vex
Usual Katarina runes (Mid)
Electrocute
51.2% win rate · 732 games
Against Vex
Electrocute35.0% win rate · 20 games
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 26.22. 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 Vex FAQ - Patch 26.22
Who wins Katarina vs Vex?
Vex is favored in this matchup: Katarina wins 34.6% of 52 games, and the whole 95% range (23.2–48.2%) is on the same side of 50%.
What is Katarina's win rate against Vex?
Katarina wins 34.6% of 52 Mid games against Vex on patch 26.22 (95% range 23.2–48.2%). Based on both champions' overall Mid win rates, 47.9% would be expected.
Does Katarina counter Vex?
No — it is the other way around: Katarina wins only 34.6% of 52 games against Vex, and the whole 95% range is below 50%.
Who wins lane, Katarina or Vex?
Neither side reliably wins the lane: the average gold difference at 15 minutes is 419, within the margin of error (51 games).
Does Katarina outscale Vex?
There are too few games of each length to tell yet.
When is Vex strongest against Katarina?
Vex is measurably ahead in: First item.
What should Katarina build against Vex?
There are not enough games for a matchup-specific core, so use Katarina's usual Mid core: Kraken Slayer, Death's Dance, Terminus. The biggest change against Vex: Doran's Shield + Health Potion + Stealth Ward (3.8% usually, 13.5% here).
What runes should Katarina use against Vex?
Electrocute with Domination and Precision — 35.0% over 20 games against Vex. The biggest change against Vex: Resolve (17.5% usually, 28.8% here).