Karthus vs Rammus Counter Pick
Matchup Summary
What the Data Means
How does Karthus really do against Rammus in Jungle? The numbers below come from live ranked matchup data. Across 125 recorded games on patch 16.13.1, Karthus wins 41.6% of the time against Rammus. That places Rammus among Karthus’s toughest opponents right now — the win rate sits clearly below the break-even line, which is exactly why this matchup is flagged as a counter.
When reading this matchup, weigh the sample size as much as the percentage — bigger samples mean the number is less likely to swing with the next patch. The stats refresh automatically every 48 hours from ranked games at Emerald and above, so this page always reflects the current meta rather than an old snapshot. For itemization and runes, open the current Karthus build; both champions’ full profiles and remaining matchups are linked below.
FAQ
No — current data marks this as a counter matchup: Rammus has the statistical edge. Karthus wins 41.6% of the recorded games.
41.6% from Karthus's perspective, measured on patch 16.13.1.
125 ranked games at Emerald rank and above, across all regions.
The current Karthus build — items, runes and skill order from the same data set — is on the Karthus build page.