Kai'Savs Smolder
Kai'Sa vs Smolder is a very close matchup in LoL patch 26.19. Smolder wins with a 50.4% win rate (+0.9%) over Kai'Sa based on 115 games. Kai'Sa wins the early laning phase while Smolder scales better into the late game. Below you'll find the best Kai'Sa build, runes, laning stats, and strategies for the Kai'Sa vs Smolder matchup.
Kai'Sa Matchup Breakdown
Use the dropdown to select an opponent and see a detailed breakdown of how Kai'Sa 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 Kai'Sa vs Smolder?
Kai'Sa wins 52.5% of these games. With this many games the true rate is most likely between 46.4% and 58.5% (95% range).
- Expected
- 49.4% From both champions' overall Bot win rates
- Matchup effect
- +3.1 pts Observed minus expected
- Sample
- 259 games Lane: Bot
- vs patch 26.18
- +2.1 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 Kai'Sa, but the sample is too limited for a strong conclusion: Kai'Sa wins 52.5% of 259 games (95% range 46.4–58.5%).
- Both champions' overall Bot win rates predict 49.4% for Kai'Sa; the result is within the margin of error of that, so this matchup mostly reflects the two champions' general strength.
- Kai'Sa usually wins the lane: 756 gold ahead of Smolder at 15 minutes on average (258 games with a 15-minute snapshot).
- Kai'Sa players pick Rabadon's Deathcap far more often against Smolder: 5.6% of their other Bot games, 9.3% 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 Kai'Sa and Smolder 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 Kai'Sa'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.
Kai'Sa vs Smolder Laning Stats
At 15 minutes
Whole-game averages
Kai'Sa vs Smolder Win Rate by Game Length
Kai'Sa's win rate against Smolder 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: Kai'Sa's results against Smolder in short and long games are within the margin of error of each other.
Kai'Sa vs Smolder 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)Kai'SaKai'Sa gold at 15: +756
- First itemKai'SaKai'Sa: 10.7 min · Smolder: 11.8 min
- Games under 20 minInsufficient data
- 20–30 min gamesEvenKai'Sa wins 58.9% of 90 games
- 30+ min gamesEvenKai'Sa wins 48.0% of 150 games
What Kai'Sa Changes Against Smolder
Choices Kai'Sa players make noticeably more or less often in this matchup than in their other Bot games.
Usually5.6%vs Smolder9.3%+3.7 pts62.5% WR here
Phantom DancerItemUsually5.4%vs Smolder8.9%+3.5 pts69.6% WR here
Best Kai'Sa Build vs Smolder
Usual Kai'Sa build (Bot)
82.6% win rate · 23 games
Limited sample: 41 of 219 games finished this exact core, so treat it as an observation rather than a recommendation.
- Kai'Sa usually completes Kraken Slayer first, at 10.7 min (median of 149 games).
- Smolder usually completes Essence Reaver first, at 11.8 min (median of 210 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 Kai'Sa Runes vs Smolder
Usual Kai'Sa runes (Bot)
Lethal Tempo
70.4% win rate · 27 games
Against Smolder
Lethal Tempo
59.0% win rate · 117 games
Plan your Kai'Sa 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
Kai'Sa matchup data for League of Legends patch 26.19. The table below shows Kai'Sa'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 Kai'Sa build, runes, laning stats, and early vs late game analysis for that specific matchup.
Other Kai'Sa Matchups
Hardest for Kai'Sa
Easiest for Kai'Sa
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.
Kai'Sa vs Smolder FAQ - Patch 26.19
Who wins Kai'Sa vs Smolder?
Current data slightly favors Kai'Sa, but the sample is too limited for a strong conclusion: Kai'Sa wins 52.5% of 259 games (95% range 46.4–58.5%).
What is Kai'Sa's win rate against Smolder?
Kai'Sa wins 52.5% of 259 Bot games against Smolder on patch 26.19 (95% range 46.4–58.5%). Based on both champions' overall Bot win rates, 49.4% would be expected.
Does Kai'Sa counter Smolder?
Not clearly. Kai'Sa wins 52.5% of 259 games against Smolder, and the 95% range (46.4–58.5%) includes 50%, so neither champion reliably counters the other on current data.
Who wins lane, Kai'Sa or Smolder?
Kai'Sa usually wins the lane: 756 gold ahead of Smolder at 15 minutes on average (258 games with a 15-minute snapshot).
Does Kai'Sa outscale Smolder?
Not measurably: Kai'Sa's win rate against Smolder in games of 25 minutes or less and in longer games is within the margin of error of each other.
When is Smolder strongest against Kai'Sa?
On current data there is no stage of the game where Smolder is ahead of Kai'Sa beyond the margin of error.
What should Kai'Sa build against Smolder?
The most successful Kai'Sa core against Smolder is Kraken Slayer, Terminus, Guinsoo's Rageblade (51.2% over 41 games). The biggest change against Smolder: Rabadon's Deathcap (5.6% usually, 9.3% here).
What runes should Kai'Sa use against Smolder?
Lethal Tempo with Precision and Inspiration — 59.0% over 117 games against Smolder.