Sylasvs Irelia
Sylas vs Irelia is a very close matchup in LoL patch 26.19. Sylas wins with a 50.0% win rate (+0.0%) over Irelia based on 38 games. Irelia wins the early laning phase while Sylas scales better into the late game. Below you'll find the best Sylas build, runes, laning stats, and strategies for the Sylas vs Irelia matchup.
Sylas Matchup Breakdown
Use the dropdown to select an opponent and see a detailed breakdown of how Sylas 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 Sylas vs Irelia?
Sylas wins 61.4% of these games. With this many games the true rate is most likely between 49.7% and 72.0% (95% range).
- Expected
- 51.3% From both champions' overall Mid win rates
- Matchup effect
- +10.1 pts Observed minus expected
- Sample
- 70 games Lane: Mid
- vs patch 26.18
- +4.3 pts Within normal patch-to-patch noise
Lane: Mid · Ranked Solo/Duo & Flex · North America server · All ranks · Patch 26.19 · Sep 24 – Sep 28
They also met in another lane (Top): 7 games, Sylas won 42.9%.
Key takeaways
- Current data slightly favors Sylas, but the sample is too limited for a strong conclusion: Sylas wins 61.4% of 70 games (95% range 49.7–72.0%).
- Both champions' overall Mid win rates predict 51.3% for Sylas; the result is within the margin of error of that, so this matchup mostly reflects the two champions' general strength.
- Irelia usually wins the lane: 779 gold ahead of Sylas at 15 minutes on average (69 games with a 15-minute snapshot).
- Sylas players pick Chainlaced Crushers much less often against Irelia: 16.4% of their other Mid games, under 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 Sylas and Irelia 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 Sylas'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.
Sylas vs Irelia Laning Stats
At 15 minutes
Whole-game averages
Sylas vs Irelia Win Rate by Game Length
Sylas's win rate against Irelia 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: Sylas's results against Irelia in short and long games are within the margin of error of each other.
Sylas vs Irelia 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)IreliaSylas gold at 15: −779
- First itemSylasSylas: 11.0 min · Irelia: 11.6 min
- Games under 20 minInsufficient data
- 20–30 min gamesInsufficient data
- 30+ min gamesInsufficient data
What Sylas Changes Against Irelia
Choices Sylas players make noticeably more or less often in this matchup than in their other Mid games.
Chainlaced CrushersBootsUsually16.4%vs Ireliaunder 2%−16.4 pts
Lich BaneItemUsually25.2%vs Irelia35.7%+10.5 pts60.0% WR here
Armored AdvanceBootsUsually5.1%vs Irelia14.3%+9.2 pts
InspirationSecondary treeUsually2.2%vs Irelia7.1%+4.9 pts
Magical FootwearRuneUsually1.7%vs Irelia5.7%+4.0 pts
Cosmic InsightRuneUsually1.9%vs Irelia5.7%+3.8 pts
Best Sylas Build vs Irelia
Usual Sylas build (Mid)
94.4% win rate · 18 games
Against Irelia
Not enough matchup-specific build data: only 9 of 37 Sylas games against Irelia carried a complete build, which is too few to recommend an item path from. Use Sylas's standard build instead.
- Sylas usually completes Hextech Rocketbelt first, at 11.0 min (median of 44 games).
- Irelia usually completes Blade of The Ruined King first, at 11.6 min (median of 66 games).
- Skill priority: W > E > Q — 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 Sylas Runes vs Irelia
Usual Sylas runes (Mid)
Conqueror
68.8% win rate · 32 games
Against Irelia
Conqueror
62.5% win rate · 24 games
Plan your Sylas 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
Sylas matchup data for League of Legends patch 26.19. The table below shows Sylas'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 Sylas build, runes, laning stats, and early vs late game analysis for that specific matchup.
Other Sylas Matchups
Hardest for Sylas
Easiest for Sylas
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.
Sylas vs Irelia FAQ - Patch 26.19
Who wins Sylas vs Irelia?
Current data slightly favors Sylas, but the sample is too limited for a strong conclusion: Sylas wins 61.4% of 70 games (95% range 49.7–72.0%).
What is Sylas's win rate against Irelia?
Sylas wins 61.4% of 70 Mid games against Irelia on patch 26.19 (95% range 49.7–72.0%). Based on both champions' overall Mid win rates, 51.3% would be expected.
Does Sylas counter Irelia?
Not clearly. Sylas wins 61.4% of 70 games against Irelia, and the 95% range (49.7–72.0%) includes 50%, so neither champion reliably counters the other on current data.
Who wins lane, Sylas or Irelia?
Irelia usually wins the lane: 779 gold ahead of Sylas at 15 minutes on average (69 games with a 15-minute snapshot).
Does Sylas outscale Irelia?
There are too few games of each length to tell yet.
When is Irelia strongest against Sylas?
Irelia is measurably ahead in: Lane (15 min).
What should Sylas build against Irelia?
There are not enough games for a matchup-specific core, so use Sylas's usual Mid core: Shadowflame, Hextech Rocketbelt, Mejai's Soulstealer. The biggest change against Irelia: Chainlaced Crushers (16.4% usually, under 2% here).
What runes should Sylas use against Irelia?
Conqueror with Precision and Resolve — 62.5% over 24 games against Irelia. The biggest change against Irelia: Inspiration (2.2% usually, 7.1% here).