Karthusvs Udyr
Karthus vs Udyr is a decisive matchup in LoL patch 26.19. Karthus wins with a 70.0% win rate (+40.0%) over Udyr based on 10 games. Karthus holds the advantage in both the early and late game. Below you'll find the best Karthus build, runes, laning stats, and strategies for the Karthus vs Udyr matchup.
Karthus Matchup Breakdown
Use the dropdown to select an opponent and see a detailed breakdown of how Karthus performs against them. You'll get head-to-head win rates, laning stats, the best build and runes for the matchup, and early vs late game analysis — all based on real ranked data.
Who wins Karthus vs Udyr?
Karthus wins 66.7% of these games. With this many games the true rate is most likely between 35.4% and 87.9% (95% range).
- Expected
- 48.7% From both champions' overall Jungle win rates
- Matchup effect
- +18.0 pts Observed minus expected
- Sample
- 9 games Lane: Jungle
- vs patch 26.18
- — Not enough games on both patches
Lane: Jungle · Ranked Solo/Duo · North America server · All ranks · Patch 26.19 · Sep 24 – Sep 28
Key takeaways
- Only 9 Karthus vs Udyr games were recorded in the Jungle role on patch 26.19 — too few to say who is favored. Treat the numbers below as provisional.
How we calculate this
Games: ranked Solo/Duo and Flex games on the North America server from the patch shown. Remakes (games under 5 minutes) are excluded.
A game only counts when Karthus and Udyr played the same position on opposite teams, so roaming, lane swaps within a team or a champion merely being in the same game never count as this matchup.
The 95% range is a Wilson score interval. Confidence comes from how wide that range is: within ±3 points is very high, ±5 high, ±8 moderate, anything wider low. Below 20 games a matchup is not classified at all.
Expected win rate combines both champions’ win rates in this lane (same games and filters) with the log5 formula: E = A(1−B) / (A(1−B) + B(1−A)). Matchup effect = observed − expected.
"What changes" compares Karthus's choices in this matchup with the same champion's other games in the same lane, and lists a change only when it is at least 3 points and statistically significant (two-proportion z-test, |z| ≥ 2, 20+ games).
Results are not split by rank: the sample per rank is too small for honest per-rank matchup numbers.
Karthus vs Udyr Laning Stats
Only 9 games have a 15-minute snapshot so far — the lane-phase numbers appear from 30.
Whole-game averages
Karthus vs Udyr Win Rate by Game Length
Karthus's win rate against Udyr by game length. The dot is the win rate, the bar its 95% range and the dashed line the champion's usual win rate at that length. Lengths with fewer than 25 games are left blank.
No game length stands out: Karthus's results against Udyr in short and long games are within the margin of error of each other.
Karthus vs Udyr Power Spikes
Who is ahead at each stage, measured from these games. A stage reads "Even" when the difference is inside the margin of error, and "Insufficient data" when there are too few games to tell.
- Lane (15 min)Insufficient data
- First itemInsufficient data
- Games under 20 minInsufficient data
- 20–30 min gamesInsufficient data
- 30+ min gamesInsufficient data
What Karthus Changes Against Udyr
Only 9 games so far — too few to compare what Karthus players do in this matchup with their usual choices (needs 20).
Best Karthus Build vs Udyr
Usual Karthus build (Jungle)
71.1% win rate · 38 games
Against Udyr
Not enough matchup-specific build data: only 0 of 9 Karthus games against Udyr carried a complete build, which is too few to recommend an item path from. Use Karthus's standard build instead.
Builds are ranked by the lower edge of their win rate range, not the raw win rate, so a build seen in a handful of wins never outranks a proven one.
Best Karthus Runes vs Udyr
Usual Karthus runes (Jungle)
Deathfire Touch
57.0% win rate · 79 games
Against Udyr
Too few games for a matchup-specific rune page yet — use the usual page.
Plan your Karthus draft in Draft Lab
Draft Lab lays out both teams lane by lane with live matchup win rates, damage profiles and game-phase lean, and suggests picks and bans from current meta data.
- Full 5v5 draft board
- Lane matchup win rates
- Pick and ban suggestions
Karthus matchup data for League of Legends patch 26.19. The table below shows Karthus's win rate, gold difference, and performance stats against every champion in the current meta. Click any champion name to see a detailed head-to-head breakdown including the best Karthus build, runes, laning stats, and early vs late game analysis for that specific matchup.
Other Karthus Matchups
Hardest for Karthus
Easiest for Karthus
Win rate and games for each matchup. Lists are ranked by the edge of the 95% range so small samples cannot top them; matchups with at least 50 games only.
Help us maintain accuracy! If you notice incorrect stats, missing data, or any issues, your feedback directly improves the quality of our data for the entire community.
Karthus vs Udyr FAQ - Patch 26.19
Who wins Karthus vs Udyr?
Only 9 Karthus vs Udyr games were recorded in the Jungle role on patch 26.19 — too few to say who is favored. Treat the numbers below as provisional.
What is Karthus's win rate against Udyr?
Karthus wins 66.7% of 9 Jungle games against Udyr on patch 26.19 (95% range 35.4–87.9%). Based on both champions' overall Jungle win rates, 48.7% would be expected.
Does Karthus counter Udyr?
There are only 9 Karthus vs Udyr games in this lane on patch 26.19 — too few to answer reliably yet.
Who wins lane, Karthus or Udyr?
There are not enough games with a 15-minute snapshot yet (9) to say who wins lane.
Does Karthus outscale Udyr?
There are too few games of each length to tell yet.
When is Udyr strongest against Karthus?
On current data there is no stage of the game where Udyr is ahead of Karthus beyond the margin of error.
What should Karthus build against Udyr?
There are not enough games for a matchup-specific core, so use Karthus's usual Jungle core: Liandry's Torment, Stormsurge, Shadowflame.
What runes should Karthus use against Udyr?
Use Karthus's usual Deathfire Touch page (Sorcery + Precision); there are too few games for a matchup-specific page.