Kai'Savs Karthus
Kai'Sa vs Karthus is a decisive matchup in LoL patch 26.11. Karthus wins with a 52.9% win rate (+5.9%) over Kai'Sa based on 17 games. Karthus wins the early laning phase while Kai'Sa scales better into the late game. Below you'll find the best Kai'Sa build, runes, laning stats, and strategies for the Kai'Sa vs Karthus matchup.
Kai'Sa Matchup Breakdown
Use the dropdown to select an opponent and see a detailed breakdown of how Kai'Sa 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 Kai'Sa vs Karthus Matchup?
Kai'Sa vs Karthus Matchup Summary
The Kai'Sa vs Karthus matchup is a moderate matchup in League of Legends ranked play. Based on 17 recent matches analyzed, Karthus wins with a 52.9% win rate compared to Kai'Sa's 47.1%, giving Karthus a 5.9 percentage point advantage. Game phase dynamics play a critical role here: Karthus controls the early laning stage, but Kai'Sa outscales as the game goes longer. The matchup shifts dramatically depending on game length — Karthus needs to press advantages before Kai'Sa reaches their power spikes, while Kai'Sa should focus on safe farming and hitting key item breakpoints. The most significant statistical gap is in crowd control, where Karthus leads by 0.6s CC/min — a difference that heavily influences the outcome of trades and skirmishes. While Karthus is slightly favored, Kai'Sa can absolutely win this lane through smart trading patterns and wave management. Focus on playing around your cooldowns, conceding CS only when necessary, and capitalizing on Karthus's mistakes. Understanding these matchup dynamics is essential for champion select decisions and in-game strategy when facing this lane opponent.
Kai'Sa vs Karthus Laning Phase Breakdown
Karthus is favored during the laning phase against Kai'Sa, winning 3 out of 5 key stat categories. Karthus holds advantages in farming, damage and crowd control, making them the stronger laner in this matchup.
Early Game vs Late Game
Kai'Sa33.3%
Karthus66.7%Kai'Sa54.5%Karthus45.5%Karthus dominates the early game (first 15 minutes) with a commanding 66.7% win rate — a 33.3 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.
Kai'Sa is far superior in the late game (25+ minutes), boasting a 54.5% win rate — 9.1 points above Karthus. Extended games heavily favor Kai'Sa, whose kit and scaling make them a dominant force in team fights and objective control.
This matchup features a dramatic power shift: Karthus must aggressively press their early advantage and close out the game before Kai'Sa reaches their scaling breakpoints. If Kai'Sa survives the laning phase without falling too far behind, the matchup flips in their favor. Dragon and Rift Herald control are pivotal — the team that secures early objectives can snowball or buy time to scale.
Best Kai'Sa Runes Against Karthus
Precision
Inspiration
The Precision and Inspiration rune setup gives Kai'Sa the best tools to compete against Karthus in this difficult matchup, compensating for the statistical disadvantages with optimal rune synergies.
Kai'Sa matchup data for League of Legends patch 26.11. The table below shows Kai'Sa'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 Kai'Sa 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 |
|---|---|---|---|---|---|---|---|
| 49.48% | 574 | 6.7 | 821 | 13,779 | 53.0% | 46.5% | |
| 45.83% | 515 | 6.7 | 832 | 13,587 | 45.5% | 46.1% | |
| 47.01% | 502 | 6.8 | 834 | 13,808 | 49.5% | 45.1% | |
| 45.38% | 487 | 7.0 | 854 | 13,522 | 42.9% | 47.7% | |
| 45.23% | 451 | 6.7 | 827 | 13,741 | 50.0% | 42.0% | |
| 45.81% | 406 | 6.9 | 916 | 14,345 | 56.2% | 38.9% | |
| 54.32% | 405 | 7.1 | 940 | 14,560 | 53.4% | 55.0% | |
| 46.10% | 269 | 6.8 | 917 | 14,463 | 51.8% | 42.0% | |
| 45.73% | 199 | 6.8 | 925 | 14,445 | 44.9% | 46.3% | |
| 44.50% | 191 | 6.5 | 830 | 13,884 | 48.1% | 41.8% | |
| 48.92% | 186 | 6.8 | 859 | 13,852 | 51.2% | 47.1% | |
| 46.29% | 175 | 6.8 | 863 | 14,641 | 46.4% | 46.2% | |
| 52.98% | 151 | 7.0 | 844 | 13,531 | 49.3% | 56.6% | |
| 39.16% | 143 | 6.9 | 840 | 13,545 | 40.3% | 38.2% | |
| 44.20% | 138 | 7.0 | 918 | 13,850 | 47.1% | 41.2% | |
| 46.72% | 137 | 6.9 | 843 | 13,645 | 43.1% | 49.4% | |
| 51.47% | 136 | 6.8 | 860 | 13,856 | 55.7% | 48.0% | |
| 46.46% | 127 | 7.1 | 878 | 13,734 | 46.1% | 46.8% | |
| 40.17% | 117 | 6.6 | 837 | 13,925 | 38.8% | 41.2% | |
| 40.91% | 110 | 7.2 | 872 | 14,359 | 45.1% | 37.3% | |
| 46.30% | 108 | 6.5 | 778 | 13,384 | 46.9% | 45.8% | |
| 37.88% | 66 | 6.5 | 854 | 14,388 | 36.0% | 39.0% | |
| 42.37% | 59 | 6.9 | 759 | 14,134 | 22.7% | 54.0% | |
| 60.00% | 55 | 7.1 | 802 | 12,329 | 65.6% | 52.2% | |
| 52.73% | 55 | 6.9 | 950 | 12,795 | 54.2% | 51.6% | |
| 42.59% | 54 | 7.1 | 819 | 13,781 | 32.0% | 51.7% | |
| 47.17% | 53 | 6.6 | 803 | 13,165 | 42.3% | 51.9% | |
| 40.43% | 47 | 6.8 | 793 | 11,637 | 37.9% | 44.4% | |
| 76.09% | 46 | 6.8 | 996 | 15,159 | 68.4% | 81.5% | |
| 51.16% | 43 | 6.6 | 852 | 14,697 | 60.0% | 46.4% | |
| 68.42% | 38 | 6.8 | 940 | 14,508 | 81.3% | 59.1% | |
| 48.48% | 33 | 7.2 | 805 | 12,424 | 41.2% | 56.3% | |
| 46.67% | 30 | 7.3 | 818 | 13,046 | 53.3% | 40.0% | |
| 32.14% | 28 | 6.8 | 855 | 12,790 | 26.7% | 38.5% | |
| 52.17% | 23 | 7.7 | 1,050 | 15,125 | 50.0% | 53.9% | |
| 50.00% | 20 | 6.6 | 1,011 | 13,907 | 62.5% | 41.7% | |
| 57.89% | 19 | 6.8 | 653 | 14,051 | 66.7% | 50.0% | |
| 47.06% | 17 | 6.5 | 998 | 14,694 | 33.3% | 54.5% | |
| 52.94% | 17 | 7.1 | 811 | 15,146 | 60.0% | 50.0% | |
| 47.06% | 17 | 6.5 | 1,071 | 14,174 | 33.3% | 54.5% | |
| 60.00% | 15 | 6.8 | 1,022 | 16,631 | 75.0% | 54.5% | |
| 50.00% | 14 | 7.0 | 1,040 | 12,158 | 50.0% | 50.0% | |
| 58.33% | 12 | 7.1 | 974 | 14,382 | 40.0% | 71.4% | |
| 40.00% | 10 | 7.3 | 1,052 | 12,511 | 16.7% | 75.0% | |
| 70.00% | 10 | 7.2 | 816 | 13,986 | 100.0% | 57.1% | |
| 44.44% | 9 | 6.3 | 1,277 | 17,440 | 50.0% | 42.9% | |
| 44.44% | 9 | 6.4 | 1,125 | 14,300 | 40.0% | 50.0% | |
| 33.33% | 9 | 7.2 | 769 | 15,040 | 33.3% | 33.3% | |
| 50.00% | 8 | 6.3 | 1,049 | 16,201 | 66.7% | 40.0% | |
| 50.00% | 8 | 6.3 | 1,242 | 14,064 | 50.0% | 50.0% | |
| 50.00% | 8 | 6.7 | 902 | 14,995 | 50.0% | 50.0% | |
| 87.50% | 8 | 5.1 | 883 | 14,885 | 50.0% | 100.0% | |
| 14.29% | 7 | 7.2 | 1,010 | 15,188 | 25.0% | 0.0% | |
| 42.86% | 7 | 5.0 | 958 | 12,839 | 33.3% | 50.0% | |
| 57.14% | 7 | 6.5 | 938 | 11,821 | 75.0% | 33.3% | |
| 42.86% | 7 | 6.2 | 1,043 | 10,983 | 33.3% | 50.0% | |
| 28.57% | 7 | 6.1 | 893 | 11,254 | 25.0% | 33.3% | |
| 57.14% | 7 | 6.8 | 748 | 12,441 | 66.7% | 50.0% | |
| 33.33% | 6 | 6.7 | 1,082 | 15,391 | 0.0% | 40.0% | |
| 50.00% | 6 | 6.9 | 1,534 | 16,620 | 33.3% | 66.7% | |
| 66.67% | 6 | 6.1 | 1,013 | 13,539 | 100.0% | 33.3% | |
| 33.33% | 6 | 5.1 | 869 | 12,306 | 33.3% | 33.3% | |
| 0.00% | 5 | 5.0 | 562 | 10,252 | 0.0% | 0.0% | |
| 20.00% | 5 | 5.8 | 882 | 15,682 | 50.0% | 0.0% | |
| 60.00% | 5 | 7.3 | 874 | 13,082 | 33.3% | 100.0% | |
| 20.00% | 5 | 7.3 | 572 | 10,639 | 0.0% | 33.3% | |
| 40.00% | 5 | 6.4 | 697 | 13,154 | 50.0% | 33.3% | |
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Kai'Sa vs Karthus - Frequently Asked Questions
How does Kai'Sa do against Karthus in League of Legends?
Karthus wins the Kai'Sa vs Karthus matchup with a 52.9% win rate compared to Kai'Sa's 47.1%, a 5.9 percentage point difference. This data is based on 17 recent ranked games in patch 26.11.
How does Kai'Sa do against Karthus in the early game?
In the early game, Karthus has the advantage against Kai'Sa with a 66.7% win rate versus 33.3%. Karthus players should look to press their lane advantage through aggressive trades and wave control during the first 15 minutes.
How does Kai'Sa do against Karthus in the late game?
In the late game, Kai'Sa takes over the Kai'Sa vs Karthus matchup with a 54.5% win rate compared to 45.5%. Kai'Sa scales better into team fights and objective contests after 25 minutes.
Who wins the Kai'Sa vs Karthus matchup?
Karthus wins the matchup against Kai'Sa with a 52.9% win rate in League of Legends patch 26.11. The 5.9 percentage point advantage means Karthus is significantly favored in this lane matchup based on 17 games analyzed.
What is the best Kai'Sa build against Karthus?
The best Kai'Sa build against Karthus includes optimized core items. Check the matchup breakdown above for the full item path and build order.
What are the best Kai'Sa runes against Karthus?
The best Kai'Sa runes against Karthus use the Precision primary tree with Inspiration secondary. This rune setup achieves a 100.0% win rate in the Kai'Sa vs Karthus matchup. See the full rune breakdown in the matchup comparison above.
Does Kai'Sa counter Karthus?
No, Kai'Sa struggles against Karthus with only a 47.1% win rate. Karthus has the advantage in this matchup. Kai'Sa players should focus on safe farming and avoiding extended trades to minimize Karthus's lead.
How do I play Kai'Sa against Karthus?
When playing Kai'Sa against Karthus, play cautiously and avoid Karthus's power spikes. Focus on safe farming — you outscale Karthus in the late game. Use the matchup-specific build and runes above to optimize your chances.