- Win Rate
- 49.6%
- Pick Rate
- 2.9%
- Ban Rate
- 6.9%
Syndra vs Kai'Sa
- Patch
- 26.19
- Games
- 5,705
- Lane
- All Lanes
- Tier
- All Tiers
- Last Updated
- Oct 7, 2026 UTC
- Methodology
- Data Methodology
- Author
- Dakota Chinnick
Syndra vs Kai'Sa is a decisive matchup in LoL patch 26.19. Kai'Sa wins with a 63.3% win rate (+26.7%) over Syndra based on 30 games. Kai'Sa holds the advantage in both the early and late game. Below you'll find the best Syndra build, runes, laning stats, and strategies for the Syndra vs Kai'Sa matchup.
Syndra Matchup Breakdown
Use the dropdown to select an opponent and see a detailed breakdown of how Syndra 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 Syndra vs Kai'Sa?
Syndra wins 43.1% of these games. With this many games the true rate is most likely between 30.5% and 56.7% (95% range).
- Expected
- 48.7% From both champions' overall Bot win rates
- Matchup effect
- −5.5 pts Observed minus expected
- Sample
- 51 games Lane: Bot
- vs patch 26.18
- −8.1 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
They also met in another lane (Mid): 12 games, Syndra won 50.0%.
Key takeaways
- Current data slightly favors Kai'Sa, but the sample is too limited for a strong conclusion: Syndra wins 43.1% of 51 games (95% range 30.5–56.7%).
- Both champions' overall Bot win rates predict 48.7% for Syndra; 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 182, within the margin of error (51 games).
- Syndra players pick Summon Aery far more often against Kai'Sa: 0.7% of their other Bot games, 3.9% 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 Syndra 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 Syndra'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.
Syndra vs Kai'Sa Laning Stats
At 15 minutes
Whole-game averages
Syndra vs Kai'Sa Win Rate by Game Length
Syndra'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: Syndra's results against Kai'Sa in short and long games are within the margin of error of each other.
Syndra 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)EvenSyndra gold at 15: +182
- First itemEvenSyndra: 10.5 min · Kai'Sa: 10.8 min
- Games under 20 minInsufficient data
- 20–30 min gamesInsufficient data
- 30+ min gamesInsufficient data
What Syndra Changes Against Kai'Sa
Choices Syndra players make noticeably more or less often in this matchup than in their other Bot games.
Summon AeryKeystoneUsually0.7%vs Kai'Sa3.9%+3.2 pts
Best Syndra Build vs Kai'Sa
Against Kai'Sa
Not enough matchup-specific build data: only 10 of 42 Syndra games against Kai'Sa carried a complete build, which is too few to recommend an item path from. Use Syndra's standard build instead.
- Syndra usually completes Luden's Echo first, at 10.5 min (median of 28 games).
- Kai'Sa usually completes Kraken Slayer first, at 10.8 min (median of 30 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 Syndra Runes vs Kai'Sa
Usual Syndra runes (Bot)
Electrocute
55.8% win rate · 104 games
Against Kai'Sa
Too few games for a matchup-specific rune page yet — use the usual page.
Plan your Syndra 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
Syndra matchup data for League of Legends patch 26.19. The table below shows Syndra'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 Syndra build, runes, laning stats, and early vs late game analysis for that specific matchup.
Other Syndra Matchups
Hardest for Syndra
Easiest for Syndra
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.
Syndra vs Kai'Sa FAQ - Patch 26.19
Who wins Syndra vs Kai'Sa?
Current data slightly favors Kai'Sa, but the sample is too limited for a strong conclusion: Syndra wins 43.1% of 51 games (95% range 30.5–56.7%).
What is Syndra's win rate against Kai'Sa?
Syndra wins 43.1% of 51 Bot games against Kai'Sa on patch 26.19 (95% range 30.5–56.7%). Based on both champions' overall Bot win rates, 48.7% would be expected.
Does Syndra counter Kai'Sa?
Not clearly. Syndra wins 43.1% of 51 games against Kai'Sa, and the 95% range (30.5–56.7%) includes 50%, so neither champion reliably counters the other on current data.
Who wins lane, Syndra or Kai'Sa?
Neither side reliably wins the lane: the average gold difference at 15 minutes is 182, within the margin of error (51 games).
Does Syndra outscale Kai'Sa?
There are too few games of each length to tell yet.
When is Kai'Sa strongest against Syndra?
On current data there is no stage of the game where Kai'Sa is ahead of Syndra beyond the margin of error.
What should Syndra build against Kai'Sa?
There are not enough games for a matchup-specific core, so use Syndra's usual Bot core: Luden's Echo, Stormsurge, Shadowflame.
What runes should Syndra use against Kai'Sa?
Use Syndra's usual Electrocute page (Domination + Sorcery); there are too few games for a matchup-specific page. The biggest change against Kai'Sa: Summon Aery (0.7% usually, 3.9% here).