- Win Rate
- 53.9%
- Pick Rate
- 1.5%
- Ban Rate
- 0.6%
Kog'Maw vs Kai'Sa
- Patch
- 26.19
- Games
- 1,325
- Lane
- All Lanes
- Tier
- All Tiers
- Last Updated
- Oct 5, 2026 UTC
- Methodology
- Data Methodology
- Author
- Dakota Chinnick
Kog'Maw vs Kai'Sa is a decisive matchup in LoL patch 26.19. Kog'Maw wins with a 61.1% win rate (+22.2%) over Kai'Sa based on 54 games. Kog'Maw holds the advantage in both the early and late game. Below you'll find the best Kog'Maw build, runes, laning stats, and strategies for the Kog'Maw vs Kai'Sa matchup.
Kog'Maw Matchup Breakdown
Use the dropdown to select an opponent and see a detailed breakdown of how Kog'Maw 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 Kog'Maw vs Kai'Sa?
Kog'Maw wins 55.7% of these games. With this many games the true rate is most likely between 47.4% and 63.7% (95% range).
- Expected
- 55.2% From both champions' overall Bot win rates
- Matchup effect
- +0.5 pts Observed minus expected
- Sample
- 140 games Lane: Bot
- vs patch 26.18
- −3.0 pts Within normal patch-to-patch noise
Lane: Bot · Ranked Solo/Duo & Flex · North America server · All ranks · Patch 26.19 · Sep 24 – Sep 28
Key takeaways
- Current data slightly favors Kog'Maw, but the sample is too limited for a strong conclusion: Kog'Maw wins 55.7% of 140 games (95% range 47.4–63.7%).
- Both champions' overall Bot win rates predict 55.2% for Kog'Maw; 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 67, within the margin of error (136 games).
- Kog'Maw players pick Exhaust + Flash far more often against Kai'Sa: 2.2% of their other Bot games, 5.7% 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 Kog'Maw and Kai'Sa 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 Kog'Maw'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.
Kog'Maw vs Kai'Sa Laning Stats
At 15 minutes
Whole-game averages
Kog'Maw vs Kai'Sa Win Rate by Game Length
Kog'Maw's win rate against Kai'Sa 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: Kog'Maw's results against Kai'Sa in short and long games are within the margin of error of each other.
Kog'Maw vs Kai'Sa 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)EvenKog'Maw gold at 15: −67
- First itemKai'SaKog'Maw: 12.6 min · Kai'Sa: 11.1 min
- Games under 20 minInsufficient data
- 20–30 min gamesEvenKog'Maw wins 48.2% of 56 games
- 30+ min gamesEvenKog'Maw wins 59.7% of 72 games
What Kog'Maw Changes Against Kai'Sa
Choices Kog'Maw players make noticeably more or less often in this matchup than in their other Bot games.
Exhaust + FlashSummoner spellsUsually2.2%vs Kai'Sa5.7%+3.5 pts
Best Kog'Maw Build vs Kai'Sa
Usual Kog'Maw build (Bot)
68.3% win rate · 243 games
Against Kai'Sa
Not enough matchup-specific build data: only 18 of 100 Kog'Maw games against Kai'Sa carried a complete build, which is too few to recommend an item path from. Use Kog'Maw's standard build instead.
- Kog'Maw usually completes Guinsoo's Rageblade first, at 12.6 min (median of 68 games).
- Kai'Sa usually completes Kraken Slayer first, at 11.1 min (median of 72 games).
- Skill priority: W > Q > 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 Kog'Maw Runes vs Kai'Sa
Usual Kog'Maw runes (Bot)
Lethal Tempo
56.6% win rate · 1,328 games
Against Kai'Sa
Lethal Tempo56.8% win rate · 95 games
Plan your Kog'Maw 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
Kog'Maw matchup data for League of Legends patch 26.19. The table below shows Kog'Maw'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 Kog'Maw build, runes, laning stats, and early vs late game analysis for that specific matchup.
Other Kog'Maw Matchups
Hardest for Kog'Maw
Easiest for Kog'Maw
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.
Kog'Maw vs Kai'Sa FAQ - Patch 26.19
Who wins Kog'Maw vs Kai'Sa?
Current data slightly favors Kog'Maw, but the sample is too limited for a strong conclusion: Kog'Maw wins 55.7% of 140 games (95% range 47.4–63.7%).
What is Kog'Maw's win rate against Kai'Sa?
Kog'Maw wins 55.7% of 140 Bot games against Kai'Sa on patch 26.19 (95% range 47.4–63.7%). Based on both champions' overall Bot win rates, 55.2% would be expected.
Does Kog'Maw counter Kai'Sa?
Not clearly. Kog'Maw wins 55.7% of 140 games against Kai'Sa, and the 95% range (47.4–63.7%) includes 50%, so neither champion reliably counters the other on current data.
Who wins lane, Kog'Maw or Kai'Sa?
Neither side reliably wins the lane: the average gold difference at 15 minutes is 67, within the margin of error (136 games).
Does Kog'Maw outscale Kai'Sa?
There are too few games of each length to tell yet.
When is Kai'Sa strongest against Kog'Maw?
Kai'Sa is measurably ahead in: First item.
What should Kog'Maw build against Kai'Sa?
There are not enough games for a matchup-specific core, so use Kog'Maw's usual Bot core: Terminus, Blade of The Ruined King, Guinsoo's Rageblade.
What runes should Kog'Maw use against Kai'Sa?
Lethal Tempo with Precision and Resolve — 56.8% over 95 games against Kai'Sa. The biggest change against Kai'Sa: Exhaust + Flash (2.2% usually, 5.7% here).