Rengarvs Karthus
Rengar vs Karthus is a decisive matchup in LoL patch 26.14. Karthus wins with a 54.5% win rate (+9.1%) over Rengar based on 11 games. Karthus wins the early laning phase while Rengar scales better into the late game. Below you'll find the best Rengar build, runes, laning stats, and strategies for the Rengar vs Karthus matchup.
Rengar Matchup Breakdown
Use the dropdown to select an opponent and see a detailed breakdown of how Rengar 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 Rengar vs Karthus Matchup?
Rengar vs Karthus Matchup Summary
The Rengar vs Karthus matchup is a decisive matchup in League of Legends ranked play. Based on 11 recent matches analyzed, Karthus wins with a 54.5% win rate compared to Rengar's 45.5%, giving Karthus a 9.1 percentage point advantage. Game phase dynamics play a critical role here: Karthus controls the early laning stage, but Rengar outscales as the game goes longer. The matchup shifts dramatically depending on game length — Karthus needs to press advantages before Rengar reaches their power spikes, while Rengar should focus on safe farming and hitting key item breakpoints. The most significant statistical gap is in sustain, where Rengar leads by 411 HP/min — a difference that heavily influences the outcome of trades and skirmishes. Karthus has a strong advantage in this matchup. Rengar players should play defensively, prioritize safe farming under tower, and look for opportunities created by jungle pressure or Karthus 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.
Rengar vs Karthus Laning Phase Breakdown
Karthus is favored during the laning phase against Rengar, winning 4 out of 5 key stat categories. Karthus holds advantages in farming, damage, gold income and crowd control, making them the stronger laner in this matchup.
Best Rengar Build Against Karthus
Ionian Boots of Lucidity is the optimal boots choice against Karthus, providing the mobility and stats Rengar needs most in this matchup. The top-performing core items for Rengar against Karthus are Profane Hydra, Edge of Night and Umbral Glaive. This combination gives Rengar an effective balance of damage, survivability, and utility for the matchup. This build performs exceptionally well, achieving a 100.0% win rate across 1 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 Rengar vs Karthus matchup.
Early Game vs Late Game
Rengar25.0%
Karthus75.0%Rengar57.1%Karthus42.9%Karthus dominates the early game (first 15 minutes) with a commanding 75.0% win rate — a 50.0 percentage point lead over Rengar. This lopsided early game means Karthus can dictate the pace of the lane from level 1, controlling trades, wave state, and river priority.
Rengar is far superior in the late game (25+ minutes), boasting a 57.1% win rate — 14.3 points above Karthus. Extended games heavily favor Rengar, 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 Rengar reaches their scaling breakpoints. If Rengar 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 Rengar Runes Against Karthus
Precision
Domination
The Precision and Domination rune setup gives Rengar the best tools to compete against Karthus in this difficult matchup, compensating for the statistical disadvantages with optimal rune synergies.
Rengar matchup data for League of Legends patch 26.14. The table below shows Rengar'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 Rengar 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 |
|---|---|---|---|---|---|---|---|
| 47.17% | 53 | 1.0 | 798 | 13,048 | 38.1% | 53.1% | |
| 36.36% | 44 | 1.0 | 765 | 12,020 | 31.3% | 39.3% | |
| 46.15% | 39 | 1.0 | 771 | 12,620 | 50.0% | 42.1% | |
| 51.43% | 35 | 1.0 | 801 | 13,803 | 41.7% | 56.5% | |
| 41.18% | 34 | 1.0 | 798 | 13,871 | 33.3% | 44.0% | |
| 50.00% | 34 | 1.0 | 800 | 11,333 | 56.3% | 44.4% | |
| 35.48% | 31 | 0.8 | 774 | 12,726 | 45.5% | 30.0% | |
| 56.67% | 30 | 1.2 | 814 | 14,235 | 61.5% | 52.9% | |
| 55.56% | 27 | 1.0 | 792 | 13,165 | 78.6% | 30.8% | |
| 35.00% | 20 | 0.9 | 768 | 13,387 | 25.0% | 41.7% | |
| 36.84% | 19 | 1.7 | 925 | 14,014 | 33.3% | 38.5% | |
| 52.63% | 19 | 0.9 | 921 | 14,493 | 37.5% | 63.6% | |
| 50.00% | 18 | 1.1 | 793 | 13,499 | 16.7% | 66.7% | |
| 50.00% | 18 | 1.3 | 789 | 12,726 | 40.0% | 53.9% | |
| 47.06% | 17 | 0.9 | 828 | 10,657 | 54.5% | 33.3% | |
| 23.53% | 17 | 1.4 | 643 | 13,402 | 0.0% | 33.3% | |
| 47.06% | 17 | 0.9 | 755 | 12,665 | 37.5% | 55.6% | |
| 35.29% | 17 | 1.0 | 743 | 10,700 | 40.0% | 28.6% | |
| 31.25% | 16 | 0.8 | 682 | 11,862 | 40.0% | 27.3% | |
| 68.75% | 16 | 0.9 | 762 | 10,853 | 62.5% | 75.0% | |
| 68.75% | 16 | 0.8 | 809 | 10,651 | 75.0% | 62.5% | |
| 40.00% | 15 | 0.9 | 678 | 12,842 | 62.5% | 14.3% | |
| 61.54% | 13 | 1.3 | 937 | 13,840 | 60.0% | 62.5% | |
| 66.67% | 12 | 0.7 | 683 | 9,800 | 83.3% | 50.0% | |
| 50.00% | 12 | 0.9 | 704 | 12,430 | 33.3% | 66.7% | |
| 50.00% | 12 | 1.1 | 608 | 11,051 | 71.4% | 20.0% | |
| 36.36% | 11 | 1.1 | 694 | 12,092 | 25.0% | 42.9% | |
| 54.55% | 11 | 0.9 | 697 | 12,100 | 60.0% | 50.0% | |
| 63.64% | 11 | 0.7 | 529 | 10,602 | 83.3% | 40.0% | |
| 45.45% | 11 | 1.2 | 864 | 16,338 | 25.0% | 57.1% | |
| 30.00% | 10 | 1.3 | 581 | 12,079 | 66.7% | 14.3% | |
| 60.00% | 10 | 0.9 | 721 | 11,823 | 80.0% | 40.0% | |
| 40.00% | 10 | 0.8 | 589 | 10,165 | 42.9% | 33.3% | |
| 66.67% | 9 | 0.7 | 845 | 13,749 | 66.7% | 66.7% | |
| 62.50% | 8 | 0.9 | 700 | 10,850 | 66.7% | 60.0% | |
| 87.50% | 8 | 2.4 | 898 | 11,636 | 75.0% | 100.0% | |
| 62.50% | 8 | 1.6 | 887 | 13,103 | 100.0% | 40.0% | |
| 50.00% | 8 | 0.8 | 633 | 12,434 | 0.0% | 100.0% | |
| 42.86% | 7 | 1.8 | 864 | 13,945 | 50.0% | 40.0% | |
| 42.86% | 7 | 4.5 | 562 | 10,883 | 25.0% | 66.7% | |
| 57.14% | 7 | 1.1 | 791 | 14,643 | 75.0% | 33.3% | |
| 85.71% | 7 | 0.7 | 882 | 15,377 | 0.0% | 100.0% | |
| 57.14% | 7 | 2.1 | 647 | 11,687 | 33.3% | 75.0% | |
| 66.67% | 6 | 3.5 | 709 | 13,053 | 50.0% | 75.0% | |
| 66.67% | 6 | 1.0 | 783 | 13,044 | 66.7% | 66.7% | |
| 40.00% | 5 | 2.3 | 555 | 13,200 | 0.0% | 50.0% | |
| 20.00% | 5 | 5.1 | 704 | 13,140 | 0.0% | 25.0% | |
| 40.00% | 5 | 3.3 | 758 | 12,437 | 33.3% | 50.0% | |
| 40.00% | 5 | 1.2 | 515 | 10,582 | 50.0% | 33.3% |
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Rengar vs Karthus - Frequently Asked Questions
How does Rengar do against Karthus in League of Legends?
Karthus wins the Rengar vs Karthus matchup with a 54.5% win rate compared to Rengar's 45.5%, a 9.1 percentage point difference. This data is based on 11 recent ranked games in patch 26.14.
How does Rengar do against Karthus in the early game?
In the early game, Karthus has the advantage against Rengar with a 75.0% win rate versus 25.0%. Karthus players should look to press their lane advantage through aggressive trades and wave control during the first 15 minutes.
How does Rengar do against Karthus in the late game?
In the late game, Rengar takes over the Rengar vs Karthus matchup with a 57.1% win rate compared to 42.9%. Rengar scales better into team fights and objective contests after 25 minutes.
Who wins the Rengar vs Karthus matchup?
Karthus wins the matchup against Rengar with a 54.5% win rate in League of Legends patch 26.14. The 9.1 percentage point advantage means Karthus is significantly favored in this lane matchup based on 11 games analyzed.
What is the best Rengar build against Karthus?
The best Rengar build against Karthus includes Profane Hydra, Edge of Night, Umbral Glaive with Ionian Boots of Lucidity. 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 Rengar runes against Karthus?
The best Rengar runes against Karthus use the Precision primary tree with Domination secondary. This rune setup achieves a 66.7% win rate in the Rengar vs Karthus matchup. See the full rune breakdown in the matchup comparison above.
Does Rengar counter Karthus?
No, Rengar struggles against Karthus with only a 45.5% win rate. Karthus has the advantage in this matchup. Rengar players should focus on safe farming and avoiding extended trades to minimize Karthus's lead.
How do I play Rengar against Karthus?
When playing Rengar 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.