
Gwenvs Sylas
Gwen vs Sylas is a decisive matchup in LoL patch 26.19. Gwen wins with a 57.1% win rate (+14.3%) over Sylas based on 28 games. Gwen holds the advantage in both the early and late game. Below you'll find the best Gwen build, runes, laning stats, and strategies for the Gwen vs Sylas 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 Sylas?
Gwen wins 56.8% of these games. With this many games the true rate is most likely between 40.9% and 71.3% (95% range).
- Expected
- 53.5% From both champions' overall Mid win rates
- Matchup effect
- +3.2 pts Observed minus expected
- Sample
- 37 games Lane: Mid
- vs patch 26.18
- — Not enough games on both patches
Lane: Mid · Ranked Solo/Duo & Flex · North America server · All ranks · Patch 26.19 · Sep 24 – Sep 28
They also met in another lane (Jungle): 32 games, Gwen won 46.9%.
They also met in another lane (Top): 7 games, Gwen won 57.1%.
Key takeaways
- Current data slightly favors Gwen, but the sample is too limited for a strong conclusion: Gwen wins 56.8% of 37 games (95% range 40.9–71.3%).
- Both champions' overall Mid win rates predict 53.5% for Gwen; 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 117, within the margin of error (37 games).
- Gwen players pick Morellonomicon far more often against Sylas: 1.1% of their other Mid games, 8.1% 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 Gwen and Sylas 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 Sylas Laning Stats
At 15 minutes
Whole-game averages
Gwen vs Sylas Win Rate by Game Length
Gwen's win rate against Sylas 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 Sylas in short and long games are within the margin of error of each other.
Gwen vs Sylas 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)EvenGwen gold at 15: +117
- First itemGwenGwen: 10.8 min · Sylas: 11.7 min
- Games under 20 minInsufficient data
- 20–30 min gamesInsufficient data
- 30+ min gamesInsufficient data
What Gwen Changes Against Sylas
Choices Gwen players make noticeably more or less often in this matchup than in their other Mid games.
MorellonomiconItemUsually1.1%vs Sylas8.1%+7.0 pts
CelerityRuneUsually1.3%vs Sylas5.4%+4.1 pts
Best Gwen Build vs Sylas
Against Sylas
Not enough matchup-specific build data: only 5 of 26 Gwen games against Sylas carried a complete build, which is too few to recommend an item path from. Use Gwen's standard build instead.
- Gwen usually completes Lich Bane first, at 10.8 min (median of 21 games).
- Sylas usually completes Hextech Rocketbelt first, at 11.7 min (median of 27 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 Gwen Runes vs Sylas
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 Sylas FAQ - Patch 26.19
Who wins Gwen vs Sylas?
Current data slightly favors Gwen, but the sample is too limited for a strong conclusion: Gwen wins 56.8% of 37 games (95% range 40.9–71.3%).
What is Gwen's win rate against Sylas?
Gwen wins 56.8% of 37 Mid games against Sylas on patch 26.19 (95% range 40.9–71.3%). Based on both champions' overall Mid win rates, 53.5% would be expected.
Does Gwen counter Sylas?
Not clearly. Gwen wins 56.8% of 37 games against Sylas, and the 95% range (40.9–71.3%) includes 50%, so neither champion reliably counters the other on current data.
Who wins lane, Gwen or Sylas?
Neither side reliably wins the lane: the average gold difference at 15 minutes is 117, within the margin of error (37 games).
Does Gwen outscale Sylas?
There are too few games of each length to tell yet.
When is Sylas strongest against Gwen?
On current data there is no stage of the game where Sylas is ahead of Gwen beyond the margin of error.
What should Gwen build against Sylas?
There are not enough games for a matchup-specific core, so use Gwen's usual Mid core: Stormsurge, Shadowflame, Void Staff. The biggest change against Sylas: Morellonomicon (1.1% usually, 8.1% here).
What runes should Gwen use against Sylas?
Use Gwen's usual First Strike page (Inspiration + Sorcery); there are too few games for a matchup-specific page. The biggest change against Sylas: Celerity (1.3% usually, 5.4% here).
