MacroMind matchup data — real ranked games, not opinions
Karthus vs Jarvan IV
Karthus vs Jarvan IV in Jungle: who wins more often?
Across 821 ranked games in Jungle, Karthus beats Jarvan IV in 51% of them. Observed from real matches — the sample size sits next to the rate, here and on every number below.
By 15 minutes the median game has Karthus ahead by 417 gold.
Does Karthus counter Jarvan IV?
No counter call here: Karthus lands at 51% over 821 games, inside the noise band for a sample this size. Neither pick wins the lane on its own — the swing lives in the spots below, so take the side you play better and use the receipts.
Your Karthus game plan against Jarvan IV
With a 300-gold lead at 10:00, Karthus wins 59% of 490 games in this matchup. Down 300 at the same mark, the rate drops to 38% over 331.
| The spot | Win rate | Games |
|---|---|---|
| 300 gold up at 10:00 | 59% | 490 |
| 300 gold down at 10:00 | 38% | 331 |
| First blood | 57% | 365 |
| +kills at 10:00 | 61% | 297 |
| +CS at 10:00 | 55% | 626 |
| 0 deaths at 10:00 | 56% | 140 |
| 0 deaths at 15:00 | 66% | 41 |
In the median game here, the first death comes near 4:49 and level 6 lands around 6:44. Until your spike is online, treat the all-in window with respect.
Karthus in Jungle: the items that actually get built
Into Jarvan IV specifically, Karthus finishes Blackfire Torch first most often: 53.3% over 291 games of this matchup.
The most-finished core in this exact matchup is Blackfire Torch, Shadowflame, Rabadon's Deathcap: 57.8% across 64 games.
The most-finished Karthus core is Blackfire Torch, Shadowflame, Rabadon's Deathcap: 53.6% across 1,882 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 Blackfire Torch (8,818 games).
Skill plan: Karthus players max Q first and take Q at level 1.