- Win Rate
- 48.4%
- Pick Rate
- 4.0%
- Ban Rate
- 4.5%
Diana vs Katarina
- Patch
- 26.20
- Games
- 5,304
- Lane
- All Lanes
- Tier
- All Tiers
- Last Updated
- Oct 12, 2026 UTC
- Methodology
- Data Methodology
- Author
- Dakota Chinnick
Diana vs Katarina is a decisive matchup in LoL patch 26.20. Katarina wins with a 58.8% win rate (+17.5%) over Diana based on 80 games. Diana wins the early laning phase while Katarina scales better into the late game. Below you'll find the best Diana build, runes, laning stats, and strategies for the Diana vs Katarina matchup.
Diana Matchup Breakdown
Use the dropdown to select an opponent and see a detailed breakdown of how Diana 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 Diana vs Katarina?
Diana wins 40.3% of these games. With this many games the true rate is most likely between 30.0% and 51.4% (95% range).
- Expected
- 49.4% From both champions' overall Mid win rates
- Matchup effect
- −9.1 pts Observed minus expected
- Sample
- 77 games Lane: Mid
- vs patch 26.19
- −13.9 pts Within normal patch-to-patch noise
Lane: Mid · Ranked Solo/Duo & Flex · North America server · All ranks · Patch 26.20 · Oct 10 – Oct 11
Key takeaways
- Current data slightly favors Katarina, but the sample is too limited for a strong conclusion: Diana wins 40.3% of 77 games (95% range 30.0–51.4%).
- Both champions' overall Mid win rates predict 49.4% for Diana; the result is within the margin of error of that, so this matchup mostly reflects the two champions' general strength.
- Diana usually wins the lane: 785 gold ahead of Katarina at 15 minutes on average (77 games with a 15-minute snapshot).
- Diana players pick Shadowflame far more often against Katarina: 65.7% of their other Mid games, 77.9% 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 Diana 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 Diana'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.
Diana vs Katarina Laning Stats
At 15 minutes
Whole-game averages
Diana vs Katarina Win Rate by Game Length
Diana'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: Diana's results against Katarina in short and long games are within the margin of error of each other.
Diana 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)DianaDiana gold at 15: +785
- First itemEvenDiana: 10.5 min · Katarina: 10.7 min
- Games under 20 minInsufficient data
- 20–30 min gamesInsufficient data
- 30+ min gamesInsufficient data
What Diana Changes Against Katarina
Choices Diana players make noticeably more or less often in this matchup than in their other Mid games.
ShadowflameItemUsually65.7%vs Katarina77.9%+12.2 pts41.7% WR here
Chainlaced CrushersBootsUsually10.8%vs Katarina2.6%−8.3 pts
Best Diana Build vs Katarina
Usual Diana build (Mid)
68.5% win rate · 73 games
Against Katarina
34.8% win rate · 23 games
Limited sample: 23 of 49 games finished this exact core, so treat it as an observation rather than a recommendation.
- Diana usually completes Stormsurge first, at 10.5 min (median of 50 games).
- Katarina usually completes Lich Bane first, at 10.7 min (median of 31 games).
- Skill priority: Q > W > E — 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 Diana Runes vs Katarina
Usual Diana runes (Mid)
Electrocute
51.7% win rate · 889 games
Against Katarina
Electrocute
47.6% win rate · 21 games
Plan your Diana 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
Diana matchup data for League of Legends patch 26.20. The table below shows Diana'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 Diana build, runes, laning stats, and early vs late game analysis for that specific matchup.
Other Diana Matchups
Hardest for Diana
Easiest for Diana
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.
Diana vs Katarina FAQ - Patch 26.20
Who wins Diana vs Katarina?
Current data slightly favors Katarina, but the sample is too limited for a strong conclusion: Diana wins 40.3% of 77 games (95% range 30.0–51.4%).
What is Diana's win rate against Katarina?
Diana wins 40.3% of 77 Mid games against Katarina on patch 26.20 (95% range 30.0–51.4%). Based on both champions' overall Mid win rates, 49.4% would be expected.
Does Diana counter Katarina?
Not clearly. Diana wins 40.3% of 77 games against Katarina, and the 95% range (30.0–51.4%) includes 50%, so neither champion reliably counters the other on current data.
Who wins lane, Diana or Katarina?
Diana usually wins the lane: 785 gold ahead of Katarina at 15 minutes on average (77 games with a 15-minute snapshot).
Does Diana outscale Katarina?
There are too few games of each length to tell yet.
When is Katarina strongest against Diana?
On current data there is no stage of the game where Katarina is ahead of Diana beyond the margin of error.
What should Diana build against Katarina?
The most successful Diana core against Katarina is Stormsurge, Shadowflame, Zhonya's Hourglass (34.8% over 23 games). The biggest change against Katarina: Shadowflame (65.7% usually, 77.9% here).
What runes should Diana use against Katarina?
Electrocute with Domination and Sorcery — 47.6% over 21 games against Katarina.