- Win Rate
- 49.7%
- Pick Rate
- 1.5%
- Ban Rate
- 0.7%
Gnar vs Sion
- Patch
- 26.19
- Games
- 1,371
- Lane
- All Lanes
- Tier
- All Tiers
- Last Updated
- Oct 5, 2026 UTC
- Methodology
- Data Methodology
- Author
- Dakota Chinnick
Gnar vs Sion is a decisive matchup in LoL patch 26.19. Gnar wins with a 53.9% win rate (+7.7%) over Sion based on 13 games. Sion wins the early laning phase while Gnar scales better into the late game. Below you'll find the best Gnar build, runes, laning stats, and strategies for the Gnar vs Sion matchup.
Gnar Matchup Breakdown
Use the dropdown to select an opponent and see a detailed breakdown of how Gnar 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 Gnar vs Sion?
Gnar wins 48.3% of these games. With this many games the true rate is most likely between 31.4% and 65.6% (95% range).
- Expected
- 49.1% From both champions' overall Top win rates
- Matchup effect
- −0.9 pts Observed minus expected
- Sample
- 29 games Lane: Top
- vs patch 26.18
- — Not enough games on both patches
Lane: Top · Ranked Solo/Duo & Flex · North America server · All ranks · Patch 26.19 · Sep 25 – Sep 28
Key takeaways
- Current data slightly favors Sion, but the sample is too limited for a strong conclusion: Gnar wins 48.3% of 29 games (95% range 31.4–65.6%).
- Both champions' overall Top win rates predict 49.1% for Gnar; the result is within the margin of error of that, so this matchup mostly reflects the two champions' general strength.
- Gnar players pick Flash + Teleport far more often against Sion: 69.6% of their other Top games, 89.7% 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 Gnar and Sion 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 Gnar'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.
Gnar vs Sion Laning Stats
Only 28 games have a 15-minute snapshot so far — the lane-phase numbers appear from 30.
Whole-game averages
Gnar vs Sion Win Rate by Game Length
Gnar's win rate against Sion 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: Gnar's results against Sion in short and long games are within the margin of error of each other.
Gnar vs Sion 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 Gnar Changes Against Sion
Choices Gnar players make noticeably more or less often in this matchup than in their other Top games.
Flash + TeleportSummoner spellsUsually69.6%vs Sion89.7%+20.0 pts46.2% WR here
Usually9.2%vs Sion27.6%+18.4 pts
Trinity ForceItemUsually81.2%vs Sion65.5%−15.7 pts
RevitalizeRuneUsually1.0%vs Sion6.9%+5.9 pts
Iceborn GauntletItemUsuallyunder 0.5%vs Sion3.4%+3.4 pts
Boots + Dagger + Doran's Blade + Health Potion + Stealth WardStarting itemsUsuallyunder 0.5%vs Sion3.4%+3.4 pts- Boots + Health Potion + Health Potion + Health PotionStarting itemsUsuallyunder 0.5%vs Sion3.4%+3.4 pts
Long Sword + Doran's Bow + Health Potion + Health Potion + Control Ward + Stealth WardStarting itemsUsuallyunder 0.5%vs Sion3.4%+3.4 pts
Best Gnar Build vs Sion
Usual Gnar build (Top)
60.5% win rate · 195 games
Against Sion
Not enough matchup-specific build data: only 2 of 17 Gnar games against Sion carried a complete build, which is too few to recommend an item path from. Use Gnar's standard build instead.
- 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 Gnar Runes vs Sion
Usual Gnar runes (Top)
Lethal Tempo
51.4% win rate · 588 games
Against Sion
Too few games for a matchup-specific rune page yet — use the usual page.
Plan your Gnar 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
Gnar matchup data for League of Legends patch 26.19. The table below shows Gnar'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 Gnar build, runes, laning stats, and early vs late game analysis for that specific matchup.
Other Gnar Matchups
Hardest for Gnar
Easiest for Gnar
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.
Gnar vs Sion FAQ - Patch 26.19
Who wins Gnar vs Sion?
Current data slightly favors Sion, but the sample is too limited for a strong conclusion: Gnar wins 48.3% of 29 games (95% range 31.4–65.6%).
What is Gnar's win rate against Sion?
Gnar wins 48.3% of 29 Top games against Sion on patch 26.19 (95% range 31.4–65.6%). Based on both champions' overall Top win rates, 49.1% would be expected.
Does Gnar counter Sion?
Not clearly. Gnar wins 48.3% of 29 games against Sion, and the 95% range (31.4–65.6%) includes 50%, so neither champion reliably counters the other on current data.
Who wins lane, Gnar or Sion?
There are not enough games with a 15-minute snapshot yet (28) to say who wins lane.
Does Gnar outscale Sion?
There are too few games of each length to tell yet.
When is Sion strongest against Gnar?
On current data there is no stage of the game where Sion is ahead of Gnar beyond the margin of error.
What should Gnar build against Sion?
There are not enough games for a matchup-specific core, so use Gnar's usual Top core: Trinity Force, Black Cleaver, Sterak's Gage. The biggest change against Sion: Blade of The Ruined King (9.2% usually, 27.6% here).
What runes should Gnar use against Sion?
Use Gnar's usual Lethal Tempo page (Precision + Resolve); there are too few games for a matchup-specific page. The biggest change against Sion: Flash + Teleport (69.6% usually, 89.7% here).