- Win Rate
- 49.8%
- Pick Rate
- 4.0%
- Ban Rate
- 1.8%
Jarvan IV vs Jayce
- Patch
- 26.22
- Games
- 7,833
- Lane
- All Lanes
- Tier
- All Tiers
- Last Updated
- Nov 14, 2026 UTC
- Author
- Dakota Chinnick
- Methodology
- Data Methodology
Jarvan IV vs Jayce (Jungle): Jarvan IV wins 54.5% of 143 ranked games over the last 2 patches (gold diff at 15: -346). Patch 26.22 build & runes.
Jarvan IV54.5%
Current data slightly favors Jarvan IV, but the sample is too limited for a strong conclusion: Jarvan IV wins 54.5% of 143 games (95% range 46.4–62.5%).
Jarvan IV Matchup Breakdown
Use the dropdown to select an opponent and see a detailed breakdown of how Jarvan IV 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 Jarvan IV vs Jayce?
Jarvan IV wins 54.5% of these games. With this many games the true rate is most likely between 46.4% and 62.5% (95% range).
- Expected
- 53.9% From both champions' overall Jungle win rates
- Matchup effect
- +0.6 pts Observed minus expected
- Sample
- 143 games Lane: Jungle · Patch 26.21–26.22
- vs patch 26.21
- — Not enough games on both patches
Lane: Jungle · Ranked Solo/Duo & Flex · North America server · All ranks · Patch 26.21–26.22 · Oct 27 – Nov 14
The headline win rate covers patches 26.21–26.22 (143 games). The lane, game-length, build and rune sections below use patch 26.22 only (126 games).
They also met in another lane (Top): 3 games, Jarvan IV won 66.7%.
Key takeaways
- Current data slightly favors Jarvan IV, but the sample is too limited for a strong conclusion: Jarvan IV wins 54.5% of 143 games (95% range 46.4–62.5%).
- Both champions' overall Jungle win rates predict 53.9% for Jarvan IV; the result is within the margin of error of that, so this matchup mostly reflects the two champions' general strength.
- Jayce usually wins the lane: 346 gold ahead of Jarvan IV at 15 minutes on average (126 games with a 15-minute snapshot).
- Jarvan IV players pick Mercury's Treads much less often against Jayce: 33.0% of their other Jungle games, 15.1% 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 Jarvan IV and Jayce 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 Jarvan IV'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.
Jarvan IV vs Jayce Laning Stats
At 15 minutes
Whole-game averages
Jarvan IV vs Jayce Win Rate by Game Length
Jarvan IV's win rate against Jayce 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: Jarvan IV's results against Jayce in short and long games are within the margin of error of each other.
Jarvan IV vs Jayce 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)JayceJarvan IV gold at 15: −346
- First itemEvenJarvan IV: 0.1 min · Jayce: 0.1 min
- Games under 20 minInsufficient data
- 20–30 min gamesEvenJarvan IV wins 52.7% of 55 games
- 30+ min gamesEvenJarvan IV wins 50.0% of 50 games
What Jarvan IV Changes Against Jayce
Choices Jarvan IV players make noticeably more or less often in this matchup than in their other Jungle games.
Mercury's TreadsBootsUsually33.0%vs Jayce15.1%−17.9 pts
BastionbreakerItemUsually14.9%vs Jayce26.2%+11.3 pts54.5% WR here
Sudden ImpactRuneUsually17.8%vs Jayce7.1%−10.7 pts
Usually34.6%vs Jayce45.2%+10.6 pts50.9% WR here
Plated SteelcapsBootsUsually44.2%vs Jayce54.8%+10.5 pts55.1% WR here
EclipseItemUsually20.6%vs Jayce10.3%−10.2 pts
DominationSecondary treeUsually15.5%vs Jayce5.6%−9.9 pts
InspirationSecondary treeUsually81.7%vs Jayce91.3%+9.6 pts54.8% WR here
Best Jarvan IV Build vs Jayce
Usual Jarvan IV build (Jungle)
80.5% win rate · 41 games
Against Jayce
Not enough matchup-specific build data: only 10 of 82 Jarvan IV games against Jayce carried a complete build, which is too few to recommend an item path from. Use Jarvan IV's standard build instead.
- Jarvan IV usually completes Scorchclaw Pup first, at 0.1 min (median of 98 games).
- Jayce usually completes Scorchclaw Pup first, at 0.1 min (median of 121 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 Jarvan IV Runes vs Jayce
Usual Jarvan IV runes (Jungle)
Conqueror
75.0% win rate · 24 games
Against Jayce
Conqueror
52.9% win rate · 51 games
Plan your Jarvan IV 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
Jarvan IV matchup data for League of Legends patch 26.22. The table below shows Jarvan IV'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 Jarvan IV build, runes, laning stats, and early vs late game analysis for that specific matchup.
Other Jarvan IV Matchups
Hardest for Jarvan IV
Easiest for Jarvan IV
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.
Jarvan IV vs Jayce FAQ - Patch 26.21–26.22
Who wins Jarvan IV vs Jayce?
Current data slightly favors Jarvan IV, but the sample is too limited for a strong conclusion: Jarvan IV wins 54.5% of 143 games (95% range 46.4–62.5%).
What is Jarvan IV's win rate against Jayce?
Jarvan IV wins 54.5% of 143 Jungle games against Jayce on patch 26.21–26.22 (95% range 46.4–62.5%). Based on both champions' overall Jungle win rates, 53.9% would be expected.
Does Jarvan IV counter Jayce?
Not clearly. Jarvan IV wins 54.5% of 143 games against Jayce, and the 95% range (46.4–62.5%) includes 50%, so neither champion reliably counters the other on current data.
Who wins lane, Jarvan IV or Jayce?
Jayce usually wins the lane: 346 gold ahead of Jarvan IV at 15 minutes on average (126 games with a 15-minute snapshot).
Does Jarvan IV outscale Jayce?
Not measurably: Jarvan IV's win rate against Jayce in games of 25 minutes or less and in longer games is within the margin of error of each other.
When is Jayce strongest against Jarvan IV?
Jayce is measurably ahead in: Lane (15 min).
What should Jarvan IV build against Jayce?
There are not enough games for a matchup-specific core, so use Jarvan IV's usual Jungle core: Eclipse, Death's Dance, Maw of Malmortius. The biggest change against Jayce: Mercury's Treads (33.0% usually, 15.1% here).
What runes should Jarvan IV use against Jayce?
Conqueror with Precision and Inspiration — 52.9% over 51 games against Jayce. The biggest change against Jayce: Sudden Impact (17.8% usually, 7.1% here).