MacroMind matchup data — real ranked games, not opinions
Jarvan IV vs Jax
How often does Jarvan IV beat Jax in Jungle?
Jarvan IV into Jax in Jungle: 52% observed win rate across 1,079 ranked games. Counted from real matches, and every number here shows its sample size.
By 15 minutes the median game has Jarvan IV ahead by 76 gold.
Does Jarvan IV counter Jax?
Too close for a counter call: Jarvan IV sits at 52% over 1,079 games, inside the noise band. On this sample neither pick counters the other — the swing lives in the conditions below, so play the side you know better.
Beating Jax: the Jarvan IV game plan
A 300-gold lead at 10:00 puts Jarvan IV at 64% across 610 games. Flip the lead and Jarvan IV falls to 38% across 469.
| The spot | Win rate | Games |
|---|---|---|
| 300 gold up at 10:00 | 64% | 610 |
| 300 gold down at 10:00 | 38% | 469 |
| First blood | 59% | 694 |
| +kills at 10:00 | 66% | 449 |
| +CS at 10:00 | 59% | 564 |
| 0 deaths at 10:00 | 63% | 371 |
| 0 deaths at 15:00 | 68% | 152 |
Someone usually dies here around 7:25 in the median game, and level 6 lands near 7:08. Until your spike is online, respect the all-in.
Jarvan IV's Jungle build, with receipts
Into Jax specifically, Jarvan IV finishes Sundered Sky first most often: 53.0% over 253 games of this matchup.
The most-finished core in this exact matchup is Sundered Sky, Black Cleaver, Guardian Angel: 55.8% across 43 games.
The most-finished Jarvan IV core is Sundered Sky, Black Cleaver, Frozen Heart: 55.0% across 2,758 games when all three got done. All matchups, patches 16.1-16.12.
Most games start Scorchclaw Pup + Health Potion; the first finished item is usually Sundered Sky (20,439 games).
Skill plan: Jarvan IV players max Q first and take E at level 1.