Karthus
Figures on this page are from League of Legends patch 16.18.1.
The win, pick, and ban rate figures here are a third-party League of Legends statistics provider's aggregation of match data that originates with Riot Games — Riot doesn't itself publish win-rate statistics. See how it works for the method, including the per-tier noise-width (σ) calibration Should I Dodge publishes on top of that raw data — how far a rate actually sits from meaningless, not something the provider itself measures.
| Role | Win Rate | Pick Rate |
|---|---|---|
| Jungle | 49.0% | 1.3% |
About 0.5% of games at this tier see Karthus banned before anyone even picks a role — one number for the whole champion, not something that genuinely differs lane to lane. It's shown here alongside Karthus's Jungle numbers, the highest-pick-rate role, purely because that's the row this page leads with. Why isn't this broken down by role?
Karthus's Jungle win rate is 1.0 percentage points below an even 50% — Should I Dodge's win-probability model varies by about 4.8 percentage points of standard deviation from lobby to lobby across all ranks, purely from which champions get drawn, so this gap is smaller than that noise, not solid evidence the champion is unusually strong or weak right now.
Karthus is tracked in exactly one role at this tier scope, Jungle — so there's no ambiguity below about which lane the rest of this page's per-tier, threat, and counters reporting describes.
Karthus's Jungle Win Rate By Tier
| Tier | Win Rate | Pick Rate | Edge (noise-widths) | Clears 0.5σ? |
|---|---|---|---|---|
| Iron | 47.2% | 1.1% | 0.37σ | No |
| Bronze | 49.0% | 1.2% | 0.17σ | No |
| Silver | 49.7% | 1.3% | 0.05σ | No |
| Gold | 49.3% | 1.3% | 0.14σ | No |
| Platinum | 48.5% | 1.3% | 0.30σ | No |
| Diamond | 49.0% | 1.4% | 0.22σ | No |
| Master | 49.5% | 1.7% | 0.10σ | No |
| Grandmaster | 51.6% | 2.3% | 0.22σ | No |
| Challenger | 45.3% | 2.2% | 0.39σ | No |
Karthus's Jungle win rate ranges from 45.3% at Challenger to 51.6% at Grandmaster across the 9 of 10 ranked tiers with published data for this role — a 6.3-point spread. Measured against each tier's own noise floor, that's 0.22σ at Grandmaster and 0.39σ at Challenger, with neither clearing the 0.5σ bar Should I Dodge itself requires before calling a reading anything but Neutral. See how noise-widths are calculated and what they mean for each rank.
Should I Dodge's curated read has Karthus's power curve as a strong late-game lean — it wants to scale into a long game, a community-consensus judgment about where the champion's power peaks, not measured win-rate-by-duration data (the stats source doesn't publish that).
Should I Dodge's curated read flags Karthus's kit as carrying burst and poke — a community-consensus judgment about what the kit threatens, not measured win-rate data, and the same read behind the counter-build suggestions on the analyzer.
Should I Dodge maintains Karthus's scaling lean and kit-threat reads above by hand, one champion at a time, across the whole roster — not generated from the win-rate numbers on this page, and not refreshed automatically when those numbers move.
Who Counters Karthus?
Matchups below are for Karthus's Jungle role -- its highest-pick-rate lane, played in 1.3% of its recorded games at this tier.
Champions That Counter Karthus
| Champion | Win Rate vs Karthus | Edge (noise-widths) |
|---|---|---|
 Dr. Mundo |
60.6% | 2.22σ |
 Ivern |
57.9% | 1.65σ |
 Udyr |
57.5% | 1.56σ |
 Ambessa |
57.0% | 1.46σ |
 Bel'Veth |
56.1% | 1.27σ |
Champions Karthus Counters
| Champion | Win Rate vs Karthus | Edge (noise-widths) |
|---|---|---|
 Maokai |
44.8% | 1.09σ |
 Jayce |
46.2% | 0.79σ |
 Rengar |
46.9% | 0.64σ |
 Shaco |
47.0% | 0.64σ |
 Qiyana |
47.5% | 0.53σ |
The stats source lists at most five champions in each direction for Karthus: 5 listed as countering it here, 5 it counters back, with a tight, 5-point spread — none of them stand out much from the others among them — most matchups you could actually face in a real game simply aren't covered.
Want a live read for your own lobby? Try the analyzer.
Learn more: what a champion win rate actually means and why the same win rate means different things at different tiers.