Karthusvs Kai'Sa
Karthus vs Kai'Sa is a decisive matchup in LoL patch 26.14. Karthus wins with a 66.7% win rate (+33.3%) over Kai'Sa based on 12 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 Kai'Sa 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 the Karthus vs Kai'Sa Matchup?
Karthus vs Kai'Sa Matchup Summary
The Karthus vs Kai'Sa matchup is a decisive matchup in League of Legends ranked play. Based on 12 recent matches analyzed, Karthus wins with a 66.7% win rate compared to Kai'Sa's 33.3%, giving Karthus a 33.3 percentage point advantage. Karthus dominates at every stage — from early laning through late game team fights. This consistent advantage makes it difficult for Kai'Sa players to find favorable windows, so team-dependent strategies and avoiding solo confrontations are essential. The most significant statistical gap is in crowd control, where Karthus leads by 0.5s CC/min — a difference that heavily influences the outcome of trades and skirmishes. Karthus players can confidently pick into Kai'Sa and play aggressively from level 1. Look to establish lane dominance early through favorable trades and zone Kai'Sa away from CS whenever possible. Understanding these matchup dynamics is essential for champion select decisions and in-game strategy when facing this lane opponent.
Karthus vs Kai'Sa Laning Phase Breakdown
Kai'Sa is favored during the laning phase against Karthus, winning 3 out of 5 key stat categories. Kai'Sa holds advantages in farming, gold income and sustain, making them the stronger laner in this matchup.
Early Game vs Late Game
Karthus83.3%
Kai'Sa16.7%Karthus50.0%Kai'Sa50.0%Karthus dominates the early game (first 15 minutes) with a commanding 83.3% win rate — a 66.7 percentage point lead over Kai'Sa. This lopsided early game means Karthus can dictate the pace of the lane from level 1, controlling trades, wave state, and river priority.
Late game (25+ minutes) is equally balanced, with Karthus at 50.0% win rate — only 0.0 points ahead of Kai'Sa. Team fight execution and macro play determine the winner at this stage, not champion matchup advantage.
Karthus holds the advantage at every stage of the game, making this a consistently favorable matchup from lane through late game team fights. Kai'Sa players should look for outplays, team-dependent strategies, and picks rather than relying on scaling to win this matchup.
Best Karthus Runes Against Kai'Sa
Sorcery
Precision
Running Sorcery primary with Precision secondary allows Karthus to press their advantage against Kai'Sa, amplifying the strengths that make this a favorable matchup.
Karthus matchup data for League of Legends patch 26.14. 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.
Opponent | Win Rate | Matches | CS/min | DMG/min | Gold/game | Early WR | Late WR |
|---|---|---|---|---|---|---|---|
| 64.71% | 17 | 1.6 | 1,307 | 14,667 | 66.7% | 64.3% | |
| 61.54% | 13 | 1.4 | 1,268 | 16,483 | 100.0% | 54.5% | |
| 38.46% | 13 | 1.7 | 1,137 | 14,455 | 50.0% | 33.3% | |
| 53.85% | 13 | 1.2 | 890 | 10,329 | 66.7% | 42.9% | |
| 66.67% | 12 | 7.0 | 1,138 | 12,772 | 83.3% | 50.0% | |
| 50.00% | 12 | 6.8 | 1,060 | 13,526 | 0.0% | 66.7% | |
| 66.67% | 12 | 1.2 | 1,223 | 15,650 | 33.3% | 77.8% | |
| 54.55% | 11 | 1.4 | 932 | 12,478 | 20.0% | 83.3% | |
| 54.55% | 11 | 1.3 | 1,252 | 16,587 | 75.0% | 42.9% | |
| 30.00% | 10 | 1.2 | 1,058 | 11,509 | 0.0% | 60.0% | |
| 77.78% | 9 | 6.9 | 1,580 | 16,289 | 33.3% | 100.0% | |
| 77.78% | 9 | 1.1 | 1,465 | 16,151 | 50.0% | 85.7% | |
| 50.00% | 8 | 1.4 | 1,364 | 13,215 | 50.0% | 50.0% | |
| 62.50% | 8 | 2.1 | 1,294 | 11,389 | 50.0% | 75.0% | |
| 75.00% | 8 | 1.7 | 1,195 | 14,494 | 0.0% | 85.7% | |
| 62.50% | 8 | 0.9 | 1,032 | 11,643 | 66.7% | 60.0% | |
| 0.00% | 8 | 1.2 | 915 | 9,770 | 0.0% | 0.0% | |
| 100.00% | 8 | 1.3 | 1,146 | 11,386 | 100.0% | 100.0% | |
| 71.43% | 7 | 5.9 | 1,210 | 11,767 | 100.0% | 60.0% | |
| 42.86% | 7 | 3.8 | 1,200 | 14,235 | 66.7% | 25.0% | |
| 50.00% | 6 | 1.8 | 1,151 | 15,151 | 0.0% | 60.0% | |
| 50.00% | 6 | 6.8 | 1,054 | 14,893 | 0.0% | 60.0% | |
| 33.33% | 6 | 5.6 | 1,013 | 11,523 | 0.0% | 100.0% | |
| 66.67% | 6 | 6.3 | 1,187 | 14,675 | 0.0% | 80.0% | |
| 40.00% | 5 | 0.9 | 1,140 | 13,258 | 100.0% | 25.0% | |
| 60.00% | 5 | 6.3 | 1,264 | 10,417 | 50.0% | 66.7% | |
| 40.00% | 5 | 0.9 | 1,006 | 13,487 | 100.0% | 25.0% | |
| 20.00% | 5 | 5.3 | 934 | 11,786 | 33.3% | 0.0% | |
| 40.00% | 5 | 1.2 | 1,379 | 16,148 | 100.0% | 25.0% | |
| 20.00% | 5 | 4.3 | 979 | 3,165 | 0.0% | 100.0% | |
| 60.00% | 5 | 1.3 | 1,046 | 14,377 | 100.0% | 50.0% | |
| 25.00% | 4 | 1.4 | 1,384 | 13,821 | 0.0% | 33.3% | |
| 25.00% | 4 | 2.3 | 1,121 | 13,886 | 0.0% | 33.3% | |
| 100.00% | 2 | 1.5 | 1,218 | 14,599 | 100.0% | 100.0% |
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Karthus vs Kai'Sa - Frequently Asked Questions
How does Karthus do against Kai'Sa in League of Legends?
Karthus wins the Karthus vs Kai'Sa matchup with a 66.7% win rate compared to Kai'Sa's 33.3%, a 33.3 percentage point difference. This data is based on 12 recent ranked games in patch 26.14.
How does Karthus do against Kai'Sa in the early game?
In the early game, Karthus has the advantage against Kai'Sa with a 83.3% win rate versus 16.7%. Karthus players should look to press their lane advantage through aggressive trades and wave control during the first 15 minutes.
How does Karthus do against Kai'Sa in the late game?
In the late game, Karthus takes over the Karthus vs Kai'Sa matchup with a 50.0% win rate compared to 50.0%. Karthus scales better into team fights and objective contests after 25 minutes.
Who wins the Karthus vs Kai'Sa matchup?
Karthus wins the matchup against Kai'Sa with a 66.7% win rate in League of Legends patch 26.14. The 33.3 percentage point advantage means Karthus is significantly favored in this lane matchup based on 12 games analyzed.
What is the best Karthus build against Kai'Sa?
The best Karthus build against Kai'Sa includes optimized core items. Check the matchup breakdown above for the full item path and build order.
What are the best Karthus runes against Kai'Sa?
The best Karthus runes against Kai'Sa use the Sorcery primary tree with Precision secondary. This rune setup achieves a 57.1% win rate in the Karthus vs Kai'Sa matchup. See the full rune breakdown in the matchup comparison above.
Does Karthus counter Kai'Sa?
Yes, Karthus has a favorable matchup against Kai'Sa with a 66.7% win rate. Karthus strongly counters Kai'Sa in lane based on current patch 26.14 data.
How do I play Karthus against Kai'Sa?
When playing Karthus against Kai'Sa, leverage your statistical advantages by trading aggressively during favorable windows. You have early game priority — look for kills and zone control before first recall. Build the recommended items and runes for this specific matchup for the best results.