MacroMind matchup data: real ranked games, not opinions
Jarvan IV vs Karthus
How often does Jarvan IV beat Karthus in Jungle?
Jarvan IV into Karthus in Jungle: 49% observed win rate across 821 ranked games.
Global ranked sample: games from every region and every rank pooled together, not one server's stats. Data runs through patch 26.12; curves updated 2026-08-07.
By 15 minutes the median game has Jarvan IV behind by 417 gold.
Jarvan IV at 15:00
- Gold: -417
- CS: -19
- XP: -749
Typical gap to Karthus, from 817 games that reached 15:00.
Does Jarvan IV counter Karthus?
No counter here: Jarvan IV sits at 49% over 821 games. The swing lives in the spots below, so play the side you know better and chase the row that moves the number the most in this lane, then hold that lead through the first back.
Beating Karthus: the Jarvan IV game plan
A gold lead at 10:00 puts Jarvan IV at 62% across 331 games. Flip the lead and Jarvan IV falls to 41% across 490.
| The spot | Win rate | Games |
|---|---|---|
| Ahead in gold at 10:00 | 62% | 331 |
| Behind in gold at 10:00 | 41% | 490 |
| First blood | 54% | 555 |
| +kills at 10:00 | 58% | 364 |
| +CS at 10:00 | 64% | 182 |
| 0 deaths at 10:00 | 64% | 228 |
| 0 deaths at 15:00 | 72% | 105 |
Someone usually dies here around 6:25 in the median game, and level 6 lands near 7:14. Until your spike is online, respect the all-in.
Jarvan IV's Jungle build, with receipts
Into Karthus specifically, Jarvan IV finishes Sundered Sky first most often: 49.3% over 136 games of this matchup.
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 26.1-26.12.
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.