- Win Rate
- 49.3%
- Pick Rate
- 1.6%
- Ban Rate
- 0.9%
Gnar vs Jax
- Patch
- 26.20
- Games
- 2,129
- Lane
- All Lanes
- Tier
- All Tiers
- Last Updated
- Oct 12, 2026 UTC
- Methodology
- Data Methodology
- Author
- Dakota Chinnick
Gnar vs Jax is a decisive matchup in LoL patch 26.20. Gnar wins with a 53.5% win rate (+7.0%) over Jax based on 43 games. Gnar holds the advantage in both the early and late game. Below you'll find the best Gnar build, runes, laning stats, and strategies for the Gnar vs Jax 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 Jax?
Gnar wins 54.8% of these games. With this many games the true rate is most likely between 39.9% and 68.8% (95% range).
- Expected
- 47.4% From both champions' overall Top win rates
- Matchup effect
- +7.4 pts Observed minus expected
- Sample
- 42 games Lane: Top
- vs patch 26.19
- — Not enough games on both patches
Lane: Top · Ranked Solo/Duo & Flex · North America server · All ranks · Patch 26.20 · Oct 10 – Oct 11
Key takeaways
- Current data slightly favors Gnar, but the sample is too limited for a strong conclusion: Gnar wins 54.8% of 42 games (95% range 39.9–68.8%).
- Both champions' overall Top win rates predict 47.4% for Gnar; 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 6, within the margin of error (41 games).
- Gnar players pick Plated Steelcaps far more often against Jax: 56.1% of their other Top games, 76.2% 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 Gnar and Jax 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 Jax Laning Stats
At 15 minutes
Whole-game averages
Gnar vs Jax Win Rate by Game Length
Gnar's win rate against Jax 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 Jax in short and long games are within the margin of error of each other.
Gnar vs Jax 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)EvenGnar gold at 15: −6
- First itemEvenGnar: 13.8 min · Jax: 13.6 min
- Games under 20 minInsufficient data
- 20–30 min gamesInsufficient data
- 30+ min gamesInsufficient data
What Gnar Changes Against Jax
Choices Gnar players make noticeably more or less often in this matchup than in their other Top games.
Plated SteelcapsBootsUsually56.1%vs Jax76.2%+20.1 pts50.0% WR here
Doran's Helm + Health Potion + Stealth WardStarting itemsUsually2.2%vs Jax9.5%+7.3 pts
Attack Speed (offense)Stat shardUsually97.2%vs Jax90.5%−6.8 pts60.5% WR here
Ability Haste (offense)Stat shardUsually0.8%vs Jax4.8%+3.9 pts
Best Gnar Build vs Jax
Usual Gnar build (Top)
59.3% win rate · 150 games
Against Jax
Not enough matchup-specific build data: only 5 of 18 Gnar games against Jax carried a complete build, which is too few to recommend an item path from. Use Gnar's standard build instead.
- Gnar usually completes Trinity Force first, at 13.8 min (median of 32 games).
- Jax usually completes Trinity Force first, at 13.6 min (median of 33 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 Gnar Runes vs Jax
Usual Gnar runes (Top)
Fleet Footwork
83.3% win rate · 18 games
Against Jax
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 26.20. 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 Jax FAQ - Patch 26.20
Who wins Gnar vs Jax?
Current data slightly favors Gnar, but the sample is too limited for a strong conclusion: Gnar wins 54.8% of 42 games (95% range 39.9–68.8%).
What is Gnar's win rate against Jax?
Gnar wins 54.8% of 42 Top games against Jax on patch 26.20 (95% range 39.9–68.8%). Based on both champions' overall Top win rates, 47.4% would be expected.
Does Gnar counter Jax?
Not clearly. Gnar wins 54.8% of 42 games against Jax, and the 95% range (39.9–68.8%) includes 50%, so neither champion reliably counters the other on current data.
Who wins lane, Gnar or Jax?
Neither side reliably wins the lane: the average gold difference at 15 minutes is 6, within the margin of error (41 games).
Does Gnar outscale Jax?
There are too few games of each length to tell yet.
When is Jax strongest against Gnar?
On current data there is no stage of the game where Jax is ahead of Gnar beyond the margin of error.
What should Gnar build against Jax?
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 Jax: Plated Steelcaps (56.1% usually, 76.2% here).
What runes should Gnar use against Jax?
Use Gnar's usual Fleet Footwork page (Precision + Resolve); there are too few games for a matchup-specific page. The biggest change against Jax: Attack Speed (offense) (97.2% usually, 90.5% here).