Corkivs Kai'Sa
Corki vs Kai'Sa is a very close matchup in LoL patch 26.19. Corki wins with a 50.0% win rate (+0.0%) over Kai'Sa based on 30 games. Corki wins the early laning phase while Kai'Sa scales better into the late game. Below you'll find the best Corki build, runes, laning stats, and strategies for the Corki vs Kai'Sa matchup.
Corki Matchup Breakdown
Use the dropdown to select an opponent and see a detailed breakdown of how Corki 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 Corki vs Kai'Sa?
Corki wins 63.5% of these games. With this many games the true rate is most likely between 49.9% and 75.2% (95% range).
- Expected
- 49.8% From both champions' overall Bot win rates
- Matchup effect
- +13.7 pts Observed minus expected
- Sample
- 52 games Lane: Bot
- vs patch 26.18
- +6.5 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 Corki, but the sample is too limited for a strong conclusion: Corki wins 63.5% of 52 games (95% range 49.9–75.2%).
- That is 13.7 points better for Corki than both champions' overall Bot win rates predict (49.8%), so the matchup itself favors this pick — not just champion strength.
- Neither side reliably wins the lane: the average gold difference at 15 minutes is 271, within the margin of error (50 games).
- Corki players pick Plated Steelcaps much less often against Kai'Sa: 37.2% of their other Bot games, 19.2% 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 Corki 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 Corki'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.
Corki vs Kai'Sa Laning Stats
At 15 minutes
Whole-game averages
Corki vs Kai'Sa Win Rate by Game Length
Corki'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: Corki's results against Kai'Sa in short and long games are within the margin of error of each other.
Corki 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)EvenCorki gold at 15: +271
- First itemKai'SaCorki: 11.4 min · Kai'Sa: 10.9 min
- Games under 20 minInsufficient data
- 20–30 min gamesInsufficient data
- 30+ min gamesInsufficient data
What Corki Changes Against Kai'Sa
Choices Corki players make noticeably more or less often in this matchup than in their other Bot games.
Plated SteelcapsBootsUsually37.2%vs Kai'Sa19.2%−18.0 pts
Gluttonous GreavesBootsUsually26.5%vs Kai'Sa42.3%+15.8 pts68.2% WR here
Biscuit DeliveryRuneUsually14.7%vs Kai'Saunder 2%−14.7 pts
Gathering StormRuneUsually4.9%vs Kai'Sa11.5%+6.6 pts
Flash + TeleportSummoner spellsUsually0.6%vs Kai'Sa5.8%+5.1 pts
Move Speed (flex)Stat shardUsually1.1%vs Kai'Sa5.8%+4.6 pts
Adaptive Force (flex)Stat shardUsually98.4%vs Kai'Sa94.2%−4.1 pts65.3% WR here
StormrazorItemUsuallyunder 0.5%vs Kai'Sa3.8%+3.8 pts
Best Corki Build vs Kai'Sa
Usual Corki build (Bot)
73.3% win rate · 15 games
Against Kai'Sa
Not enough matchup-specific build data: only 7 of 38 Corki games against Kai'Sa carried a complete build, which is too few to recommend an item path from. Use Corki's standard build instead.
- Corki usually completes Essence Reaver first, at 11.4 min (median of 31 games).
- Kai'Sa usually completes Kraken Slayer first, at 10.9 min (median of 28 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 Corki Runes vs Kai'Sa
Usual Corki runes (Bot)
Conqueror
54.1% win rate · 294 games
Against Kai'Sa
Too few games for a matchup-specific rune page yet — use the usual page.
Plan your Corki 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
Corki matchup data for League of Legends patch 26.19. The table below shows Corki'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 Corki build, runes, laning stats, and early vs late game analysis for that specific matchup.
Other Corki Matchups
Hardest for Corki
Easiest for Corki
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.
Corki vs Kai'Sa FAQ - Patch 26.19
Who wins Corki vs Kai'Sa?
Current data slightly favors Corki, but the sample is too limited for a strong conclusion: Corki wins 63.5% of 52 games (95% range 49.9–75.2%).
What is Corki's win rate against Kai'Sa?
Corki wins 63.5% of 52 Bot games against Kai'Sa on patch 26.19 (95% range 49.9–75.2%). Based on both champions' overall Bot win rates, 49.8% would be expected.
Does Corki counter Kai'Sa?
Not clearly. Corki wins 63.5% of 52 games against Kai'Sa, and the 95% range (49.9–75.2%) includes 50%, so neither champion reliably counters the other on current data.
Who wins lane, Corki or Kai'Sa?
Neither side reliably wins the lane: the average gold difference at 15 minutes is 271, within the margin of error (50 games).
Does Corki outscale Kai'Sa?
There are too few games of each length to tell yet.
When is Kai'Sa strongest against Corki?
Kai'Sa is measurably ahead in: First item.
What should Corki build against Kai'Sa?
There are not enough games for a matchup-specific core, so use Corki's usual Bot core: The Collector, Essence Reaver, Muramana. The biggest change against Kai'Sa: Plated Steelcaps (37.2% usually, 19.2% here).
What runes should Corki use against Kai'Sa?
Use Corki's usual Conqueror page (Precision + Inspiration); there are too few games for a matchup-specific page. The biggest change against Kai'Sa: Biscuit Delivery (14.7% usually, under 2% here).