Karthusvs Rengar
Karthus vs Rengar is a decisive matchup in LoL patch 26.11. Rengar wins with a 54.5% win rate (+9.1%) over Karthus based on 22 games. Karthus wins the early laning phase while Rengar scales better into the late game. Below you'll find the best Karthus build, runes, laning stats, and strategies for the Karthus vs Rengar 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 Rengar Matchup?
Karthus vs Rengar Matchup Summary
The Karthus vs Rengar matchup is a decisive matchup in League of Legends ranked play. Based on 22 recent matches analyzed, Rengar wins with a 54.5% win rate compared to Karthus's 45.5%, giving Rengar 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 415 HP/min — a difference that heavily influences the outcome of trades and skirmishes. Rengar 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 Rengar 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 Rengar 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 Karthus Build Against Rengar
Sorcerer's Shoes is the optimal boots choice against Rengar, providing the mobility and stats Karthus needs most in this matchup. The top-performing core items for Karthus against Rengar are Shadowflame, Zhonya's Hourglass and Rabadon's Deathcap. This combination gives Karthus an effective balance of damage, survivability, and utility for the matchup. This build achieves a solid 50.0% win rate across 2 games, proving it to be a reliable item path when facing Rengar. Adjustments may be needed based on team compositions and game state, but this build provides the strongest foundation for the Karthus vs Rengar matchup.
Early Game vs Late Game
Karthus50.0%
Rengar50.0%Karthus44.4%Rengar55.6%The early game (first 15 minutes) is a toss-up between Karthus and Rengar, with Karthus holding a razor-thin 50.0% win rate edge (+0.0%). Individual skill and jungle proximity will matter more than champion advantage in the early laning phase.
Rengar is far superior in the late game (25+ minutes), boasting a 55.6% win rate — 11.1 points above Karthus. Extended games heavily favor Rengar, whose kit and scaling make them a dominant force in team fights and objective control.
The power dynamics shift as the game progresses — Karthus has the edge early, but Rengar gradually takes over. However, the margins are slim enough that either champion can win at any stage with the right plays. Focus on taking advantages when you have them rather than waiting for a specific game phase.
Best Karthus Runes Against Rengar
Inspiration
Sorcery
The Inspiration and Sorcery rune setup gives Karthus the best tools to compete against Rengar in this difficult matchup, compensating for the statistical disadvantages with optimal rune synergies.
Karthus matchup data for League of Legends patch 26.11. 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 |
|---|---|---|---|---|---|---|---|
| 49.09% | 55 | 1.4 | 1,030 | 12,957 | 47.8% | 50.0% | |
| 43.64% | 55 | 1.7 | 1,170 | 13,037 | 40.0% | 46.7% | |
| 45.10% | 51 | 1.6 | 1,057 | 13,346 | 31.8% | 55.2% | |
| 59.18% | 49 | 6.3 | 1,291 | 13,609 | 50.0% | 65.5% | |
| 52.08% | 48 | 1.5 | 1,259 | 14,655 | 47.1% | 54.8% | |
| 42.22% | 45 | 1.5 | 1,017 | 13,071 | 43.8% | 41.4% | |
| 37.78% | 45 | 1.3 | 1,027 | 12,768 | 40.9% | 34.8% | |
| 64.44% | 45 | 6.5 | 1,326 | 16,022 | 86.7% | 53.3% | |
| 50.00% | 42 | 6.6 | 1,197 | 13,070 | 66.7% | 33.3% | |
| 43.59% | 39 | 6.3 | 1,215 | 13,238 | 50.0% | 36.8% | |
| 57.89% | 38 | 1.4 | 1,263 | 13,760 | 53.3% | 60.9% | |
| 47.37% | 38 | 1.5 | 1,144 | 13,402 | 37.5% | 54.5% | |
| 34.21% | 38 | 1.9 | 1,067 | 12,867 | 40.0% | 30.4% | |
| 43.24% | 37 | 1.8 | 1,212 | 13,463 | 57.1% | 34.8% | |
| 38.24% | 34 | 7.0 | 1,247 | 13,842 | 33.3% | 42.1% | |
| 46.88% | 32 | 1.8 | 1,146 | 12,845 | 38.5% | 52.6% | |
| 43.33% | 30 | 1.8 | 1,294 | 14,569 | 58.3% | 33.3% | |
| 55.17% | 29 | 6.1 | 1,203 | 12,390 | 66.7% | 42.9% | |
| 46.43% | 28 | 1.4 | 1,030 | 12,474 | 53.3% | 38.5% | |
| 57.14% | 28 | 6.6 | 1,423 | 15,214 | 50.0% | 62.5% | |
| 40.74% | 27 | 1.3 | 1,335 | 15,992 | 16.7% | 47.6% | |
| 28.00% | 25 | 1.8 | 1,163 | 13,295 | 30.0% | 26.7% | |
| 66.67% | 24 | 1.6 | 1,146 | 14,337 | 75.0% | 58.3% | |
| 45.45% | 22 | 1.5 | 1,307 | 14,905 | 50.0% | 44.4% | |
| 66.67% | 21 | 2.2 | 1,201 | 13,572 | 77.8% | 58.3% | |
| 55.00% | 20 | 1.6 | 1,267 | 13,968 | 60.0% | 50.0% | |
| 68.42% | 19 | 5.6 | 1,496 | 16,092 | 100.0% | 60.0% | |
| 63.16% | 19 | 1.3 | 1,116 | 14,409 | 62.5% | 63.6% | |
| 38.89% | 18 | 1.5 | 1,448 | 14,535 | 42.9% | 36.4% | |
| 55.56% | 18 | 6.4 | 1,276 | 13,454 | 66.7% | 44.4% | |
| 72.22% | 18 | 5.1 | 1,121 | 11,322 | 60.0% | 87.5% | |
| 35.29% | 17 | 1.5 | 1,056 | 12,455 | 36.4% | 33.3% | |
| 52.94% | 17 | 1.3 | 1,370 | 15,161 | 57.1% | 50.0% | |
| 76.47% | 17 | 6.5 | 1,263 | 15,482 | 80.0% | 75.0% | |
| 47.06% | 17 | 1.5 | 960 | 12,244 | 44.4% | 50.0% | |
| 52.94% | 17 | 6.5 | 1,330 | 13,719 | 66.7% | 45.5% | |
| 43.75% | 16 | 1.4 | 1,244 | 15,497 | 50.0% | 41.7% | |
| 56.25% | 16 | 1.3 | 1,080 | 13,221 | 80.0% | 45.5% | |
| 53.33% | 15 | 5.4 | 1,373 | 13,678 | 75.0% | 45.5% | |
| 35.71% | 14 | 1.6 | 1,239 | 13,567 | 44.4% | 20.0% | |
| 28.57% | 14 | 6.7 | 1,359 | 11,934 | 50.0% | 12.5% | |
| 42.86% | 14 | 2.4 | 1,250 | 14,777 | 40.0% | 44.4% | |
| 50.00% | 14 | 1.6 | 1,082 | 15,541 | 25.0% | 60.0% | |
| 69.23% | 13 | 6.5 | 1,305 | 13,965 | 57.1% | 83.3% | |
| 61.54% | 13 | 6.5 | 1,256 | 12,939 | 60.0% | 62.5% | |
| 53.85% | 13 | 2.5 | 1,052 | 12,276 | 75.0% | 44.4% | |
| 58.33% | 12 | 5.9 | 1,027 | 10,269 | 57.1% | 60.0% | |
| 83.33% | 12 | 1.3 | 1,229 | 13,183 | 80.0% | 85.7% | |
| 50.00% | 12 | 5.4 | 1,340 | 14,967 | 75.0% | 37.5% | |
| 45.45% | 11 | 1.4 | 1,031 | 13,145 | 57.1% | 25.0% | |
| 72.73% | 11 | 1.6 | 1,027 | 12,997 | 100.0% | 57.1% | |
| 27.27% | 11 | 5.9 | 1,132 | 13,232 | 0.0% | 42.9% | |
| 30.00% | 10 | 3.2 | 1,059 | 13,472 | 25.0% | 33.3% | |
| 70.00% | 10 | 7.4 | 1,271 | 15,568 | 100.0% | 57.1% | |
| 70.00% | 10 | 2.9 | 1,144 | 15,271 | 100.0% | 62.5% | |
| 50.00% | 10 | 7.2 | 1,138 | 12,216 | 50.0% | 50.0% | |
| 40.00% | 10 | 2.9 | 1,376 | 15,578 | 0.0% | 44.4% | |
| 55.56% | 9 | 5.5 | 1,266 | 13,151 | 50.0% | 60.0% | |
| 33.33% | 9 | 4.9 | 927 | 10,925 | 20.0% | 50.0% | |
| 44.44% | 9 | 6.2 | 1,072 | 10,467 | 33.3% | 66.7% | |
| 55.56% | 9 | 3.3 | 1,212 | 14,875 | 100.0% | 42.9% | |
| 55.56% | 9 | 1.4 | 1,252 | 15,076 | 100.0% | 42.9% | |
| 77.78% | 9 | 2.9 | 1,165 | 14,153 | 66.7% | 83.3% | |
| 33.33% | 9 | 2.1 | 1,195 | 13,834 | 33.3% | 33.3% | |
| 87.50% | 8 | 1.3 | 1,113 | 14,337 | 80.0% | 100.0% | |
| 25.00% | 8 | 1.3 | 1,285 | 13,222 | 50.0% | 16.7% | |
| 87.50% | 8 | 6.4 | 1,182 | 14,464 | 50.0% | 100.0% | |
| 75.00% | 8 | 1.7 | 1,650 | 16,965 | 50.0% | 83.3% | |
| 75.00% | 8 | 6.7 | 1,197 | 15,023 | 75.0% | 75.0% | |
| 62.50% | 8 | 2.0 | 991 | 13,519 | 100.0% | 50.0% | |
| 37.50% | 8 | 1.7 | 996 | 13,524 | 0.0% | 50.0% | |
| 57.14% | 7 | 6.3 | 1,632 | 17,174 | 100.0% | 50.0% | |
| 42.86% | 7 | 2.9 | 1,108 | 11,950 | 25.0% | 66.7% | |
| 14.29% | 7 | 1.1 | 907 | 12,626 | 25.0% | 0.0% | |
| 71.43% | 7 | 6.9 | 1,202 | 14,284 | 50.0% | 80.0% | |
| 85.71% | 7 | 5.5 | 1,332 | 17,108 | 0.0% | 85.7% | |
| 42.86% | 7 | 4.1 | 1,210 | 13,964 | 0.0% | 50.0% | |
| 28.57% | 7 | 6.0 | 1,442 | 13,367 | 0.0% | 40.0% | |
| 57.14% | 7 | 7.0 | 1,427 | 13,690 | 33.3% | 75.0% | |
| 57.14% | 7 | 2.4 | 1,124 | 12,107 | 40.0% | 100.0% | |
| 85.71% | 7 | 1.0 | 1,062 | 14,104 | 50.0% | 100.0% | |
| 50.00% | 6 | 7.1 | 1,388 | 12,743 | 50.0% | 50.0% | |
| 33.33% | 6 | 6.8 | 1,144 | 11,486 | 0.0% | 66.7% | |
| 66.67% | 6 | 4.2 | 1,440 | 15,135 | 100.0% | 60.0% | |
| 33.33% | 6 | 2.3 | 965 | 9,779 | 0.0% | 50.0% | |
| 33.33% | 6 | 2.5 | 1,074 | 12,120 | 50.0% | 0.0% | |
| 33.33% | 6 | 6.6 | 1,316 | 11,448 | 0.0% | 66.7% | |
| 16.67% | 6 | 5.8 | 1,303 | 13,270 | 0.0% | 25.0% | |
| 50.00% | 6 | 2.5 | 1,437 | 16,735 | 0.0% | 75.0% | |
| 20.00% | 5 | 6.3 | 1,409 | 13,939 | 0.0% | 33.3% | |
| 40.00% | 5 | 5.3 | 798 | 6,518 | 0.0% | 100.0% | |
| 40.00% | 5 | 1.1 | 1,418 | 14,804 | 0.0% | 50.0% | |
| 40.00% | 5 | 3.4 | 1,190 | 15,035 | 0.0% | 50.0% | |
| 60.00% | 5 | 4.6 | 1,656 | 13,732 | 66.7% | 50.0% | |
| 80.00% | 5 | 6.7 | 1,331 | 10,470 | 66.7% | 100.0% | |
| 60.00% | 5 | 2.0 | 1,292 | 14,405 | 100.0% | 50.0% | |
| 20.00% | 5 | 6.0 | 1,206 | 10,846 | 33.3% | 0.0% | |
| 40.00% | 5 | 6.7 | 1,012 | 12,710 | 0.0% | 50.0% | |
| 40.00% | 5 | 6.3 | 1,482 | 13,690 | 100.0% | 25.0% | |
| 60.00% | 5 | 5.9 | 1,400 | 13,383 | 66.7% | 50.0% | |
| 40.00% | 5 | 6.5 | 1,189 | 9,677 | 25.0% | 100.0% | |
Help us maintain accuracy! If you notice incorrect stats, missing data, or any issues, your feedback directly improves the quality of our data for the entire community.
Karthus vs Rengar - Frequently Asked Questions
How does Karthus do against Rengar in League of Legends?
Rengar wins the Karthus vs Rengar matchup with a 54.5% win rate compared to Karthus's 45.5%, a 9.1 percentage point difference. This data is based on 22 recent ranked games in patch 26.11.
How does Karthus do against Rengar in the early game?
In the early game, Karthus has the advantage against Rengar with a 50.0% win rate versus 50.0%. 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 Rengar in the late game?
In the late game, Rengar takes over the Karthus vs Rengar matchup with a 55.6% win rate compared to 44.4%. Rengar scales better into team fights and objective contests after 25 minutes.
Who wins the Karthus vs Rengar matchup?
Rengar wins the matchup against Karthus with a 54.5% win rate in League of Legends patch 26.11. The 9.1 percentage point advantage means Rengar is significantly favored in this lane matchup based on 22 games analyzed.
What is the best Karthus build against Rengar?
The best Karthus build against Rengar includes Shadowflame, Zhonya's Hourglass, Rabadon's Deathcap with Sorcerer's Shoes. This build achieves a 50.0% win rate in the matchup. Check the matchup breakdown above for the full item path and build order.
What are the best Karthus runes against Rengar?
The best Karthus runes against Rengar use the Inspiration primary tree with Sorcery secondary. This rune setup achieves a 100.0% win rate in the Karthus vs Rengar matchup. See the full rune breakdown in the matchup comparison above.
Does Karthus counter Rengar?
No, Karthus struggles against Rengar with only a 45.5% win rate. Rengar has the advantage in this matchup. Karthus players should focus on safe farming and avoiding extended trades to minimize Rengar's lead.
How do I play Karthus against Rengar?
When playing Karthus against Rengar, play cautiously and avoid Rengar's power spikes. Look for jungle assistance and team-dependent plays since Rengar has the statistical advantage at most stages. Use the matchup-specific build and runes above to optimize your chances.