MacroMind matchup data: real ranked games, not opinions
Sivir vs Karthus
How often does Sivir beat Karthus in ADC?
Sivir into Karthus in ADC: 51% observed win rate across 271 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 Sivir ahead by 209 gold.
Sivir at 15:00
- Gold: +209
- CS: +5
- XP: -90
Typical gap to Karthus, from 270 games that reached 15:00.
Does Sivir counter Karthus?
No counter here: Sivir sits at 51% over 271 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 Sivir game plan
A gold lead at 10:00 puts Sivir at 57% across 159 games. Flip the lead and Sivir falls to 42% across 112.
| The spot | Win rate | Games |
|---|---|---|
| Ahead in gold at 10:00 | 57% | 159 |
| Behind in gold at 10:00 | 42% | 112 |
| First blood | 53% | 176 |
| +kills at 10:00 | 54% | 110 |
| +CS at 10:00 | 54% | 155 |
| 0 deaths at 10:00 | 48% | 56 |
Someone usually dies here around 4:00 in the median game, and level 6 lands near 7:12. Until your spike is online, respect the all-in.
Sivir's ADC build, with receipts
Into Karthus specifically, Sivir finishes Essence Reaver first most often: 55.4% over 92 games of this matchup.
The most-finished core in this exact matchup is Essence Reaver, Navori Flickerblade, Infinity Edge: 61.2% across 49 games.
The most-finished Sivir core is Essence Reaver, Navori Flickerblade, Infinity Edge: 55.7% across 13,089 games when all three got done. All matchups, patches 26.1-26.12.
Most games start Doran's Blade + Health Potion; the first finished item is usually Essence Reaver (26,046 games).
Skill plan: Sivir players max Q first and take W at level 1.