Karthusvs Rek'Sai
Karthus vs Rek'Sai is a decisive matchup in LoL patch 26.12. Rek'Sai wins with a 70.0% win rate (+40.0%) over Karthus based on 10 games. Rek'Sai 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 Rek'Sai 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 Rek'Sai Matchup?
Karthus vs Rek'Sai Matchup Summary
The Karthus vs Rek'Sai matchup is a decisive matchup in League of Legends ranked play. Based on 10 recent matches analyzed, Rek'Sai wins with a 70.0% win rate compared to Karthus's 30.0%, giving Rek'Sai a 40.0 percentage point advantage. Rek'Sai dominates at every stage — from early laning through late game team fights. This consistent advantage makes it difficult for Karthus players to find favorable windows, so team-dependent strategies and avoiding solo confrontations are essential. The most significant statistical gap is in sustain, where Rek'Sai leads by 1,119 HP/min — a difference that heavily influences the outcome of trades and skirmishes. Rek'Sai has a strong advantage in this matchup. Karthus players should play defensively, prioritize safe farming under tower, and look for opportunities created by jungle pressure or Rek'Sai overextending. Avoid prolonged trades and wait for team fights where positioning and coordination matter more. Understanding these matchup dynamics is essential for champion select decisions and in-game strategy when facing this lane opponent.
Karthus vs Rek'Sai Laning Phase Breakdown
Karthus is favored during the laning phase against Rek'Sai, winning 3 out of 5 key stat categories. Karthus holds advantages in farming, damage and gold income, making them the stronger laner in this matchup.
Best Karthus Build Against Rek'Sai
Sorcerer's Shoes is the optimal boots choice against Rek'Sai, providing the mobility and stats Karthus needs most in this matchup. The top-performing core items for Karthus against Rek'Sai are Liandry's Torment, Shadowflame and Void Staff. This combination gives Karthus an effective balance of damage, survivability, and utility for the matchup. Adjustments may be needed based on team compositions and game state, but this build provides the strongest foundation for the Karthus vs Rek'Sai matchup.
Early Game vs Late Game
Karthus40.0%
Rek'Sai60.0%Karthus20.0%Rek'Sai80.0%Rek'Sai dominates the early game (first 15 minutes) with a commanding 60.0% win rate — a 20.0 percentage point lead over Karthus. This lopsided early game means Rek'Sai can dictate the pace of the lane from level 1, controlling trades, wave state, and river priority.
Rek'Sai is far superior in the late game (25+ minutes), boasting a 80.0% win rate — 60.0 points above Karthus. Extended games heavily favor Rek'Sai, whose kit and scaling make them a dominant force in team fights and objective control.
Rek'Sai holds the advantage at every stage of the game, making this a consistently favorable matchup from lane through late game team fights. Karthus players should look for outplays, team-dependent strategies, and picks rather than relying on scaling to win this matchup.
Best Karthus Runes Against Rek'Sai
Sorcery
Precision
The Sorcery and Precision rune setup gives Karthus the best tools to compete against Rek'Sai in this difficult matchup, compensating for the statistical disadvantages with optimal rune synergies.
Karthus matchup data for League of Legends patch 26.12. 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 |
|---|---|---|---|---|---|---|---|
| 79.17% | 24 | 1.5 | 1,171 | 16,017 | 71.4% | 82.3% | |
| 47.83% | 23 | 1.6 | 1,331 | 13,801 | 22.2% | 64.3% | |
| 36.36% | 22 | 7.0 | 1,215 | 13,600 | 40.0% | 33.3% | |
| 50.00% | 20 | 6.8 | 1,146 | 13,836 | 33.3% | 75.0% | |
| 36.84% | 19 | 1.5 | 1,191 | 14,999 | 50.0% | 33.3% | |
| 57.89% | 19 | 6.4 | 1,282 | 15,079 | 75.0% | 45.5% | |
| 43.75% | 16 | 1.4 | 929 | 12,391 | 33.3% | 57.1% | |
| 62.50% | 16 | 1.1 | 1,089 | 12,877 | 87.5% | 37.5% | |
| 37.50% | 16 | 1.3 | 1,150 | 14,311 | 0.0% | 50.0% | |
| 37.50% | 16 | 6.5 | 1,324 | 14,204 | 33.3% | 40.0% | |
| 46.67% | 15 | 1.3 | 1,275 | 14,068 | 80.0% | 30.0% | |
| 66.67% | 15 | 1.6 | 1,336 | 16,383 | 50.0% | 72.7% | |
| 46.15% | 13 | 2.0 | 1,248 | 15,114 | 33.3% | 57.1% | |
| 69.23% | 13 | 6.7 | 1,336 | 13,890 | 66.7% | 70.0% | |
| 58.33% | 12 | 7.0 | 1,333 | 15,305 | 66.7% | 50.0% | |
| 50.00% | 12 | 1.4 | 1,197 | 14,689 | 75.0% | 37.5% | |
| 41.67% | 12 | 2.0 | 1,326 | 16,084 | 50.0% | 37.5% | |
| 50.00% | 12 | 6.8 | 1,519 | 16,296 | 75.0% | 37.5% | |
| 58.33% | 12 | 1.2 | 1,175 | 13,966 | 60.0% | 57.1% | |
| 25.00% | 12 | 2.0 | 1,239 | 14,903 | 20.0% | 28.6% | |
| 54.55% | 11 | 1.9 | 1,155 | 14,827 | 50.0% | 57.1% | |
| 45.45% | 11 | 1.5 | 1,049 | 14,347 | 33.3% | 50.0% | |
| 60.00% | 10 | 2.0 | 1,100 | 12,965 | 60.0% | 60.0% | |
| 30.00% | 10 | 1.8 | 1,195 | 14,400 | 40.0% | 20.0% | |
| 50.00% | 10 | 5.1 | 1,230 | 12,297 | 50.0% | 50.0% | |
| 55.56% | 9 | 6.7 | 1,052 | 11,802 | 66.7% | 33.3% | |
| 25.00% | 8 | 1.4 | 1,069 | 13,759 | 33.3% | 20.0% | |
| 37.50% | 8 | 1.6 | 1,172 | 15,272 | 50.0% | 33.3% | |
| 50.00% | 8 | 1.0 | 1,257 | 11,322 | 50.0% | 50.0% | |
| 37.50% | 8 | 1.9 | 1,181 | 12,659 | 66.7% | 20.0% | |
| 62.50% | 8 | 1.3 | 1,240 | 14,311 | 66.7% | 60.0% | |
| 75.00% | 8 | 6.5 | 1,456 | 17,927 | 66.7% | 80.0% | |
| 14.29% | 7 | 1.4 | 1,319 | 14,046 | 0.0% | 16.7% | |
| 71.43% | 7 | 1.4 | 1,210 | 15,324 | 66.7% | 75.0% | |
| 57.14% | 7 | 1.2 | 1,175 | 15,992 | 75.0% | 33.3% | |
| 57.14% | 7 | 1.5 | 1,326 | 15,019 | 0.0% | 66.7% | |
| 42.86% | 7 | 6.7 | 1,181 | 12,883 | 0.0% | 75.0% | |
| 57.14% | 7 | 1.2 | 1,359 | 12,414 | 100.0% | 40.0% | |
| 57.14% | 7 | 1.7 | 1,256 | 15,972 | 100.0% | 50.0% | |
| 83.33% | 6 | 1.3 | 1,113 | 12,407 | 75.0% | 100.0% | |
| 33.33% | 6 | 1.3 | 1,081 | 13,611 | 50.0% | 0.0% | |
| 50.00% | 6 | 4.2 | 1,336 | 16,194 | 0.0% | 60.0% | |
| 66.67% | 6 | 6.9 | 1,242 | 13,330 | 50.0% | 100.0% | |
| 33.33% | 6 | 6.8 | 1,177 | 14,763 | 50.0% | 25.0% | |
| 66.67% | 6 | 4.3 | 851 | 12,035 | 50.0% | 75.0% | |
| 20.00% | 5 | 1.1 | 1,324 | 13,375 | 50.0% | 0.0% | |
| 80.00% | 5 | 1.2 | 1,272 | 16,405 | 100.0% | 75.0% | |
| 60.00% | 5 | 7.6 | 1,081 | 15,881 | 100.0% | 50.0% | |
| 40.00% | 5 | 1.2 | 1,308 | 15,880 | 0.0% | 50.0% | |
| 20.00% | 5 | 6.2 | 1,010 | 12,762 | 0.0% | 25.0% | |
| 40.00% | 5 | 1.3 | 1,160 | 10,869 | 50.0% | 33.3% | |
| 60.00% | 5 | 2.5 | 1,184 | 13,574 | 50.0% | 66.7% | |
| 40.00% | 5 | 6.3 | 1,234 | 13,542 | 0.0% | 66.7% | |
| 40.00% | 5 | 1.3 | 1,409 | 18,078 | 100.0% | 25.0% | |
| 50.00% | 2 | 1.8 | 1,205 | 16,041 | 100.0% | 0.0% | |
| 0.00% | 1 | 0.0 | 158 | 519 | 0.0% | 0.0% | |
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Karthus vs Rek'Sai - Frequently Asked Questions
How does Karthus do against Rek'Sai in League of Legends?
Rek'Sai wins the Karthus vs Rek'Sai matchup with a 70.0% win rate compared to Karthus's 30.0%, a 40.0 percentage point difference. This data is based on 10 recent ranked games in patch 26.12.
How does Karthus do against Rek'Sai in the early game?
In the early game, Rek'Sai has the advantage against Karthus with a 60.0% win rate versus 40.0%. Rek'Sai players should look to press their lane advantage through aggressive trades and wave control during the first 15 minutes.
How does Karthus do against Rek'Sai in the late game?
In the late game, Rek'Sai takes over the Karthus vs Rek'Sai matchup with a 80.0% win rate compared to 20.0%. Rek'Sai scales better into team fights and objective contests after 25 minutes.
Who wins the Karthus vs Rek'Sai matchup?
Rek'Sai wins the matchup against Karthus with a 70.0% win rate in League of Legends patch 26.12. The 40.0 percentage point advantage means Rek'Sai is significantly favored in this lane matchup based on 10 games analyzed.
What is the best Karthus build against Rek'Sai?
The best Karthus build against Rek'Sai includes Liandry's Torment, Shadowflame, Void Staff with Sorcerer's Shoes. Check the matchup breakdown above for the full item path and build order.
What are the best Karthus runes against Rek'Sai?
The best Karthus runes against Rek'Sai use the Sorcery primary tree with Precision secondary. This rune setup achieves a 100.0% win rate in the Karthus vs Rek'Sai matchup. See the full rune breakdown in the matchup comparison above.
Does Karthus counter Rek'Sai?
No, Karthus struggles against Rek'Sai with only a 30.0% win rate. Rek'Sai has the advantage in this matchup. Karthus players should focus on safe farming and avoiding extended trades to minimize Rek'Sai's lead.
How do I play Karthus against Rek'Sai?
When playing Karthus against Rek'Sai, play cautiously and avoid Rek'Sai's power spikes. Look for jungle assistance and team-dependent plays since Rek'Sai has the statistical advantage at most stages. Use the matchup-specific build and runes above to optimize your chances.