MacroMind matchup data: real ranked games, not opinions
Rek'Sai vs Karthus
Rek'Sai vs Karthus in Jungle: who wins more often?
Across 284 ranked games in Jungle, Rek'Sai beats Karthus in 49% of them.
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 Rek'Sai behind by 553 gold.
Rek'Sai at 15:00
- Gold: -553
- CS: -23
- XP: -857
Typical gap to Karthus, from 283 games that reached 15:00.
Does Rek'Sai counter Karthus?
Even on the count: Rek'Sai lands at 49% over 284 games. Neither pick wins the lane alone, so take the side you play better and use the rows below to see which early spots swing this one, then play your first ten minutes around them.
Your Rek'Sai game plan against Karthus
With a gold lead at 10:00, Rek'Sai wins 59% of 97 games in this matchup. Behind at the same mark, the rate drops to 43% over 187.
| The spot | Win rate | Games |
|---|---|---|
| Ahead in gold at 10:00 | 59% | 97 |
| Behind in gold at 10:00 | 43% | 187 |
| First blood | 54% | 201 |
| +kills at 10:00 | 58% | 125 |
| 0 deaths at 10:00 | 64% | 74 |
In the median game here, the first death comes near 6:20 and level 6 lands around 7:17. Until your spike is online, treat the all-in window with respect.
Rek'Sai in Jungle: the items that actually get built
Into Karthus specifically, Rek'Sai finishes Stridebreaker first most often: 50.6% over 81 games of this matchup.
The most-finished Rek'Sai core is Stridebreaker, Spear of Shojin, Sterak's Gage: 57.2% across 1,659 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 Stridebreaker (8,712 games).
Skill plan: Rek'Sai players max Q first and take Q at level 1.