Rengar - League of Legends Champion
Win Rate
46.6%
Pick Rate
1.8%

Rengarvs Karthus

FAssassinFighter
Patch26.7
Matches949,984
LaneAll Lanes
TierAll Tiers
Last UpdatedApr 20, 2026
MethodologyData Methodology

Rengar vs Karthus is a decisive matchup in LoL patch 26.7. Rengar wins with a 73.3% win rate (+46.7%) over Karthus based on 15 games. Rengar holds the advantage in both the early and 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.

Compare against an opponent
Karthus - 73.3% win rateKarthus(73.3%)
Rengar - 73.3% win rate in this matchup
Rengar
73.3% WR
VS
Karthus vs Rengar matchup - 26.7% win rate
Karthus
26.7% WR

Who Wins the Rengar vs Karthus Matchup?

Rengar wins the Rengar vs Karthus matchup
Winner
Rengar
Matches: 15
73.3%
Win Rate
26.7%
1.3
CS / min
1.3
889
DMG / min
1,034
13,113
Gold / game
12,146
507
Heal / min
311
594
DMG Mitigated / min
434
0.4
CC / min
0.6
72.7%
Early Game WR
27.3%
75.0%
Late Game WR
25.0%

Rengar vs Karthus Matchup Summary

The Rengar vs Karthus matchup is a decisive matchup in League of Legends ranked play. Based on 15 recent matches analyzed, Rengar wins with a 73.3% win rate compared to Karthus's 26.7%, giving Rengar a 46.7 percentage point advantage. Rengar 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 Rengar leads by 355 HP/min — a difference that heavily influences the outcome of trades and skirmishes. Rengar 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.

Rengar vs Karthus Laning Phase Breakdown

Rengar wins the laning phase against Karthus in League of Legends

Rengar is favored during the laning phase against Karthus, winning 3 out of 5 key stat categories. Rengar holds advantages in farming, gold income and sustain, making them the stronger laner in this matchup.

Farming
1.3Rengar
1.3Karthus
Rengar and Karthus farm at nearly identical rates in this matchup, with only a 0.0 CS/min difference. Neither champion holds a meaningful farming advantage, so lane dominance will come from trading and jungle interaction rather than CS leads.
Damage
889Rengar
1,034Karthus
Karthus heavily out-damages Rengar by 146 DMG/min, dominating both short trades and all-in fights. Rengar should avoid extended combat and instead focus on burst trade patterns — short engages followed by immediate disengagement — to avoid letting Karthus's sustained damage advantage take over.
Economy
13,113Rengar
12,146Karthus
Rengar generates a commanding 967 more gold per game than Karthus. This substantial economic advantage means Rengar consistently reaches key item breakpoints earlier, creating a compounding lead that grows throughout the game. Karthus should focus on cost-effective item choices and avoid unnecessary deaths to prevent falling further behind.
Utility
0.4Rengar
0.6Karthus
Both Rengar and Karthus provide similar amounts of crowd control (0.1s/min difference), meaning neither has a significant advantage in locking down opponents for ganks or team fights. Lane ganks are equally effective for both sides.
Sustain
1,101Rengar
745Karthus
Rengar vastly out-sustains Karthus, healing and mitigating 355 more damage per minute. This massive durability gap means Rengar can absorb significant punishment and remain in lane while Karthus is forced to recall. Building grievous wounds early is essential for Karthus, and focusing on burst trade patterns rather than sustained fights is critical.

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, Axiom Arc and Youmuu's Ghostblade. This combination gives Rengar 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 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

Early Game
Rengar
72.7%
+45.5% advantage
Rengar early game win rateRengar72.7%
Karthus early game win rateKarthus27.3%
Late Game
Rengar
75.0%
+50.0% advantage
Rengar late game win rateRengar75.0%
Karthus late game win rateKarthus25.0%

Rengar dominates the early game (first 15 minutes) with a commanding 72.7% win rate — a 45.5 percentage point lead over Karthus. This lopsided early game means Rengar 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 75.0% win rate — 50.0 points above Karthus. Extended games heavily favor Rengar, whose kit and scaling make them a dominant force in team fights and objective control.

Rengar 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 Rengar Runes Against Karthus

Inspiration rune tree - Rengar primary runes vs KarthusInspiration
First Strike - best Rengar rune vs KarthusMagical Footwear - best Rengar rune vs KarthusTriple Tonic - best Rengar rune vs KarthusCosmic Insight - best Rengar rune vs Karthus
Domination rune tree - Rengar secondary runes vs KarthusDomination
Sudden Impact - best Rengar rune vs KarthusUltimate Hunter - best Rengar rune vs Karthus
100.0% WR

Running Inspiration primary with Domination secondary allows Rengar to press their advantage against Karthus, amplifying the strengths that make this a favorable matchup.


Rengar matchup data for League of Legends patch 26.7. 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.

Rengar matchup win rates and stats in League of Legends patch 26.7
Opponent
Win Rate
Matches
CS/min
DMG/min
Gold/game
Early WR
Late WR
44.58%831.179313,72350.0%39.0%
42.86%701.073413,85642.9%42.9%
49.28%691.482814,47146.4%51.2%
54.69%641.283913,94048.5%61.3%
50.00%621.287814,57548.1%51.4%
44.26%611.186214,73740.0%47.2%
35.59%591.377213,62544.4%28.1%
44.64%561.185014,44248.1%41.4%
40.00%501.178914,29047.6%34.5%
44.44%451.695713,52552.2%36.4%
48.89%450.975213,17340.0%60.0%
35.71%421.289815,30846.1%31.0%
40.48%421.082014,89150.0%33.3%
47.62%421.189314,28038.9%54.2%
61.11%361.079813,47266.7%57.1%
52.94%341.787914,68561.1%43.8%
48.48%331.374213,65853.3%44.4%
38.71%311.185114,22240.0%37.5%
45.16%310.982712,73047.1%42.9%
58.62%291.175713,70964.3%53.3%
48.28%291.191414,35246.1%50.0%
44.44%271.394614,29535.7%53.9%
37.04%271.489014,97430.8%42.9%
51.85%271.096914,45642.9%61.5%
36.00%251.075912,84546.7%20.0%
20.83%241.879813,4868.3%33.3%
41.67%241.293714,06750.0%33.3%
47.83%231.478513,62044.4%50.0%
45.45%221.375013,92333.3%53.9%
36.36%222.570313,05344.4%30.8%
42.86%211.079914,22030.0%54.5%
47.62%210.971813,48633.3%58.3%
42.86%211.868713,34160.0%27.3%
45.00%201.284414,65150.0%43.8%
68.42%191.01,02115,81640.0%78.6%
57.89%191.389614,14550.0%61.5%
66.67%180.973113,47354.5%85.7%
52.94%173.073311,34771.4%40.0%
58.82%171.193617,07666.7%54.5%
37.50%161.176712,77744.4%28.6%
73.33%151.388913,11372.7%75.0%
61.54%131.173714,57660.0%62.5%
15.38%131.269813,85428.6%0.0%
41.67%121.162712,36957.1%20.0%
25.00%122.466311,4050.0%60.0%
58.33%121.181214,41625.0%75.0%
50.00%122.279812,72537.5%75.0%
54.55%114.681313,95940.0%66.7%
50.00%101.170614,19720.0%80.0%
30.00%103.985813,95850.0%25.0%
44.44%90.91,18216,1170.0%80.0%
44.44%92.770813,28666.7%33.3%
55.56%91.01,00416,6740.0%71.4%
37.50%81.791112,08740.0%33.3%
25.00%84.593513,46525.0%25.0%
42.86%71.21,05415,01050.0%40.0%
14.29%72.652211,74025.0%0.0%
66.67%61.487314,83150.0%75.0%
50.00%60.665312,33333.3%66.7%
83.33%62.275011,79375.0%100.0%
66.67%64.591113,5460.0%80.0%
66.67%61.978211,30975.0%50.0%
20.00%51.83706,62520.0%0.0%
60.00%54.067110,56466.7%50.0%
60.00%50.872213,2250.0%100.0%
20.00%52.16359,15833.3%0.0%
20.00%52.01,04519,0310.0%25.0%
100.00%51.172712,762100.0%100.0%
60.00%52.81,13114,49833.3%100.0%

Get the MetaBot Desktop App

Level up your gameplay with real-time overlays, automatic game detection, and instant stats — all on your desktop.

In-game overlaysAuto game detectionMulti-game supportPersonal dashboard
Download NowFree download
🔍

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.

Report an Issue

Rengar vs Karthus - Frequently Asked Questions

How does Rengar do against Karthus in League of Legends?

Rengar wins the Rengar vs Karthus matchup with a 73.3% win rate compared to Karthus's 26.7%, a 46.7 percentage point difference. This data is based on 15 recent ranked games in patch 26.7.

How does Rengar do against Karthus in the early game?

In the early game, Rengar has the advantage against Karthus with a 72.7% win rate versus 27.3%. Rengar 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 75.0% win rate compared to 25.0%. Rengar scales better into team fights and objective contests after 25 minutes.

Who wins the Rengar vs Karthus matchup?

Rengar wins the matchup against Karthus with a 73.3% win rate in League of Legends patch 26.7. The 46.7 percentage point advantage means Rengar is significantly favored in this lane matchup based on 15 games analyzed.

What is the best Rengar build against Karthus?

The best Rengar build against Karthus includes Profane Hydra, Axiom Arc, Youmuu's Ghostblade with Ionian Boots of Lucidity. 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 Rengar runes against Karthus?

The best Rengar runes against Karthus use the Inspiration primary tree with Domination secondary. This rune setup achieves a 100.0% win rate in the Rengar vs Karthus matchup. See the full rune breakdown in the matchup comparison above.

Does Rengar counter Karthus?

Yes, Rengar has a favorable matchup against Karthus with a 73.3% win rate. Rengar strongly counters Karthus in lane based on current patch 26.7 data.

How do I play Rengar against Karthus?

When playing Rengar 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.