Rek'Saivs Karthus
Rek'Sai vs Karthus 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 Rek'Sai build, runes, laning stats, and strategies for the Rek'Sai vs Karthus matchup.
Rek'Sai Matchup Breakdown
Use the dropdown to select an opponent and see a detailed breakdown of how Rek'Sai 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 Rek'Sai vs Karthus Matchup?
Rek'Sai vs Karthus Matchup Summary
The Rek'Sai vs Karthus 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 players can confidently pick into Karthus and play aggressively from level 1. Look to establish lane dominance early through favorable trades and zone Karthus away from CS whenever possible. Understanding these matchup dynamics is essential for champion select decisions and in-game strategy when facing this lane opponent.
Rek'Sai vs Karthus 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 Rek'Sai Build Against Karthus
Mercury's Treads is the optimal boots choice against Karthus, providing the mobility and stats Rek'Sai needs most in this matchup. The top-performing core items for Rek'Sai against Karthus are Death's Dance, Titanic Hydra and Spear of Shojin. This combination gives Rek'Sai an effective balance of damage, survivability, and utility for the matchup. This build performs exceptionally well, achieving a 100.0% win rate across 2 games — well above average and making it the top item path against Karthus. Adjustments may be needed based on team compositions and game state, but this build provides the strongest foundation for the Rek'Sai vs Karthus matchup.
Early Game vs Late Game
Rek'Sai60.0%
Karthus40.0%Rek'Sai80.0%Karthus20.0%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 Rek'Sai Runes Against Karthus
Precision
Inspiration
Running Precision primary with Inspiration secondary allows Rek'Sai to press their advantage against Karthus, amplifying the strengths that make this a favorable matchup.
Rek'Sai matchup data for League of Legends patch 26.12. The table below shows Rek'Sai'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 Rek'Sai 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 |
|---|---|---|---|---|---|---|---|
| 43.24% | 37 | 0.8 | 659 | 12,721 | 43.8% | 42.9% | |
| 44.12% | 34 | 0.8 | 693 | 14,036 | 36.4% | 47.8% | |
| 76.67% | 30 | 0.8 | 654 | 13,448 | 91.7% | 66.7% | |
| 50.00% | 30 | 0.9 | 610 | 11,914 | 50.0% | 50.0% | |
| 34.48% | 30 | 0.8 | 556 | 11,946 | 25.0% | 41.2% | |
| 46.15% | 26 | 1.1 | 673 | 12,782 | 44.4% | 47.1% | |
| 41.67% | 24 | 0.9 | 635 | 13,273 | 36.4% | 46.1% | |
| 54.55% | 22 | 0.7 | 564 | 12,858 | 62.5% | 50.0% | |
| 31.82% | 22 | 0.6 | 657 | 11,782 | 25.0% | 40.0% | |
| 63.64% | 22 | 0.6 | 579 | 12,157 | 81.8% | 45.5% | |
| 63.16% | 19 | 0.9 | 554 | 11,175 | 40.0% | 88.9% | |
| 61.11% | 18 | 0.7 | 638 | 13,586 | 77.8% | 44.4% | |
| 62.50% | 16 | 1.0 | 725 | 12,704 | 60.0% | 63.6% | |
| 26.67% | 15 | 0.8 | 629 | 11,216 | 25.0% | 28.6% | |
| 38.46% | 13 | 0.9 | 579 | 12,061 | 28.6% | 50.0% | |
| 38.46% | 13 | 0.9 | 781 | 11,846 | 50.0% | 33.3% | |
| 58.33% | 12 | 0.7 | 638 | 12,585 | 83.3% | 33.3% | |
| 58.33% | 12 | 0.6 | 705 | 11,407 | 71.4% | 40.0% | |
| 45.45% | 11 | 0.9 | 579 | 13,213 | 50.0% | 42.9% | |
| 54.55% | 11 | 0.6 | 746 | 13,852 | 50.0% | 60.0% | |
| 45.45% | 11 | 0.8 | 734 | 12,302 | 16.7% | 80.0% | |
| 45.45% | 11 | 0.7 | 676 | 14,512 | 75.0% | 28.6% | |
| 45.45% | 11 | 0.8 | 686 | 14,120 | 33.3% | 50.0% | |
| 54.55% | 11 | 0.9 | 615 | 12,962 | 60.0% | 50.0% | |
| 20.00% | 10 | 0.7 | 598 | 11,014 | 33.3% | 0.0% | |
| 70.00% | 10 | 0.8 | 656 | 13,414 | 60.0% | 80.0% | |
| 60.00% | 10 | 0.9 | 765 | 15,495 | 75.0% | 50.0% | |
| 88.89% | 9 | 0.7 | 698 | 13,175 | 100.0% | 80.0% | |
| 33.33% | 9 | 0.7 | 525 | 10,761 | 33.3% | 33.3% | |
| 55.56% | 9 | 0.8 | 669 | 13,705 | 25.0% | 80.0% | |
| 66.67% | 9 | 0.5 | 629 | 10,491 | 66.7% | 66.7% | |
| 44.44% | 9 | 1.0 | 592 | 11,847 | 66.7% | 33.3% | |
| 75.00% | 8 | 2.6 | 849 | 11,699 | 60.0% | 100.0% | |
| 75.00% | 8 | 1.0 | 603 | 11,817 | 75.0% | 75.0% | |
| 50.00% | 8 | 0.8 | 796 | 12,700 | 33.3% | 60.0% | |
| 25.00% | 8 | 1.6 | 669 | 10,331 | 33.3% | 0.0% | |
| 71.43% | 7 | 2.5 | 775 | 13,507 | 100.0% | 50.0% | |
| 57.14% | 7 | 0.8 | 679 | 13,683 | 50.0% | 60.0% | |
| 57.14% | 7 | 0.9 | 722 | 13,411 | 0.0% | 80.0% | |
| 85.71% | 7 | 3.9 | 1,000 | 13,159 | 100.0% | 50.0% | |
| 42.86% | 7 | 0.5 | 541 | 8,420 | 42.9% | 0.0% | |
| 42.86% | 7 | 1.7 | 710 | 12,506 | 33.3% | 50.0% | |
| 83.33% | 6 | 1.7 | 593 | 8,703 | 83.3% | 0.0% | |
| 66.67% | 6 | 1.0 | 572 | 10,148 | 66.7% | 66.7% | |
| 66.67% | 6 | 1.7 | 481 | 11,824 | 75.0% | 50.0% | |
| 50.00% | 6 | 1.1 | 606 | 13,186 | 0.0% | 75.0% | |
| 0.00% | 5 | 3.1 | 807 | 12,852 | 0.0% | 0.0% | |
| 75.00% | 4 | 0.7 | 489 | 11,919 | 100.0% | 50.0% |
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Rek'Sai vs Karthus - Frequently Asked Questions
How does Rek'Sai do against Karthus in League of Legends?
Rek'Sai wins the Rek'Sai vs Karthus 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 Rek'Sai do against Karthus 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 Rek'Sai do against Karthus in the late game?
In the late game, Rek'Sai takes over the Rek'Sai vs Karthus 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 Rek'Sai vs Karthus 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 Rek'Sai build against Karthus?
The best Rek'Sai build against Karthus includes Death's Dance, Titanic Hydra, Spear of Shojin with Mercury's Treads. This build achieves a 100.0% win rate in the matchup. Check the matchup breakdown above for the full item path and build order.
What are the best Rek'Sai runes against Karthus?
The best Rek'Sai runes against Karthus use the Precision primary tree with Inspiration secondary. This rune setup achieves a 100.0% win rate in the Rek'Sai vs Karthus matchup. See the full rune breakdown in the matchup comparison above.
Does Rek'Sai counter Karthus?
Yes, Rek'Sai has a favorable matchup against Karthus with a 70.0% win rate. Rek'Sai strongly counters Karthus in lane based on current patch 26.12 data.
How do I play Rek'Sai against Karthus?
When playing Rek'Sai against Karthus, 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.