- Win Rate
- 50.8%
- Pick Rate
- 2.6%
- Ban Rate
- 4.2%
Gwen vs Kassadin
- Patch
- 26.19
- Games
- 5,242
- Lane
- All Lanes
- Tier
- All Tiers
- Last Updated
- Oct 8, 2026 UTC
- Methodology
- Data Methodology
- Author
- Dakota Chinnick
Gwen vs Kassadin is a very close matchup in LoL patch 26.19. Gwen wins with a 50.0% win rate (+0.0%) over Kassadin based on 6 games. Kassadin wins the early laning phase while Gwen scales better into the late game. Below you'll find the best Gwen build, runes, laning stats, and strategies for the Gwen vs Kassadin matchup.
Gwen Matchup Breakdown
Use the dropdown to select an opponent and see a detailed breakdown of how Gwen 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 Gwen vs Kassadin?
Gwen wins 30.8% of these games. With this many games the true rate is most likely between 12.7% and 57.6% (95% range).
- Expected
- 52.6% From both champions' overall Mid win rates
- Matchup effect
- −21.8 pts Observed minus expected
- Sample
- 13 games Lane: Mid
- vs patch 26.18
- — Not enough games on both patches
Lane: Mid · Ranked Solo/Duo · North America server · All ranks · Patch 26.19 · Sep 24 – Sep 28
Key takeaways
- Only 13 Gwen vs Kassadin games were recorded in the Mid role on patch 26.19 — too few to say who is favored. Treat the numbers below as provisional.
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 Gwen and Kassadin 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 Gwen'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.
Gwen vs Kassadin Laning Stats
Only 13 games have a 15-minute snapshot so far — the lane-phase numbers appear from 30.
Whole-game averages
Gwen vs Kassadin Win Rate by Game Length
Gwen's win rate against Kassadin 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: Gwen's results against Kassadin in short and long games are within the margin of error of each other.
Gwen vs Kassadin 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)Insufficient data
- First itemInsufficient data
- Games under 20 minInsufficient data
- 20–30 min gamesInsufficient data
- 30+ min gamesInsufficient data
What Gwen Changes Against Kassadin
Only 13 games so far — too few to compare what Gwen players do in this matchup with their usual choices (needs 20).
Best Gwen Build vs Kassadin
Against Kassadin
Not enough matchup-specific build data: only 0 of 13 Gwen games against Kassadin carried a complete build, which is too few to recommend an item path from. Use Gwen's standard build instead.
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 Gwen Runes vs Kassadin
Usual Gwen runes (Mid)
First Strike
54.8% win rate · 354 games
Against Kassadin
Too few games for a matchup-specific rune page yet — use the usual page.
Plan your Gwen 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
Gwen matchup data for League of Legends patch 26.19. The table below shows Gwen'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 Gwen build, runes, laning stats, and early vs late game analysis for that specific matchup.
Other Gwen Matchups
Hardest for Gwen
Easiest for Gwen
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.
Gwen vs Kassadin FAQ - Patch 26.19
Who wins Gwen vs Kassadin?
Only 13 Gwen vs Kassadin games were recorded in the Mid role on patch 26.19 — too few to say who is favored. Treat the numbers below as provisional.
What is Gwen's win rate against Kassadin?
Gwen wins 30.8% of 13 Mid games against Kassadin on patch 26.19 (95% range 12.7–57.6%). Based on both champions' overall Mid win rates, 52.6% would be expected.
Does Gwen counter Kassadin?
There are only 13 Gwen vs Kassadin games in this lane on patch 26.19 — too few to answer reliably yet.
Who wins lane, Gwen or Kassadin?
There are not enough games with a 15-minute snapshot yet (13) to say who wins lane.
Does Gwen outscale Kassadin?
There are too few games of each length to tell yet.
When is Kassadin strongest against Gwen?
On current data there is no stage of the game where Kassadin is ahead of Gwen beyond the margin of error.
What should Gwen build against Kassadin?
There are not enough games for a matchup-specific core, so use Gwen's usual Mid core: Stormsurge, Shadowflame, Void Staff.
What runes should Gwen use against Kassadin?
Use Gwen's usual First Strike page (Inspiration + Sorcery); there are too few games for a matchup-specific page.