Karthusvs Sion
Karthus vs Sion is a decisive matchup in LoL patch 26.7. Sion wins with a 85.7% win rate (+71.4%) over Karthus based on 7 games. Sion 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 Sion 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.
Sion(14.3%)Who Wins the Karthus vs Sion Matchup?
Karthus vs Sion Matchup Summary
The Karthus vs Sion matchup is a decisive matchup in League of Legends ranked play. Based on 7 recent matches analyzed, Sion wins with a 85.7% win rate compared to Karthus's 14.3%, giving Sion a 71.4 percentage point advantage. Sion 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 Sion leads by 1,034 HP/min — a difference that heavily influences the outcome of trades and skirmishes. Sion 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 Sion 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 Sion Laning Phase Breakdown
Sion is favored during the laning phase against Karthus, winning 4 out of 5 key stat categories. Sion holds advantages in farming, gold income, crowd control and sustain, making them the stronger laner in this matchup.
Best Karthus Build Against Sion
Sorcerer's Shoes is the optimal boots choice against Sion, providing the mobility and stats Karthus needs most in this matchup. The top-performing core items for Karthus against Sion are Liandry's Torment, Zhonya's Hourglass 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 Sion matchup.
Early Game vs Late Game
Karthus0.0%Sion100.0%Karthus33.3%Sion66.7%Sion dominates the early game (first 15 minutes) with a commanding 100.0% win rate — a 100.0 percentage point lead over Karthus. This lopsided early game means Sion can dictate the pace of the lane from level 1, controlling trades, wave state, and river priority.
Sion is far superior in the late game (25+ minutes), boasting a 66.7% win rate — 33.3 points above Karthus. Extended games heavily favor Sion, whose kit and scaling make them a dominant force in team fights and objective control.
Sion 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 Sion
Inspiration
Sorcery
The Inspiration and Sorcery rune setup gives Karthus the best tools to compete against Sion in this difficult matchup, compensating for the statistical disadvantages with optimal rune synergies.
Karthus matchup data for League of Legends patch 26.7. 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 |
|---|---|---|---|---|---|---|---|
| 48.78% | 41 | 1.5 | 1,246 | 13,634 | 64.7% | 37.5% | |
| 45.00% | 40 | 1.7 | 1,199 | 14,676 | 50.0% | 41.7% | |
| 37.84% | 37 | 1.8 | 1,203 | 13,453 | 42.9% | 34.8% | |
| 59.46% | 37 | 6.8 | 1,204 | 14,133 | 61.1% | 57.9% | |
| 58.33% | 36 | 1.4 | 1,185 | 14,863 | 46.1% | 65.2% | |
| 42.86% | 35 | 1.6 | 1,147 | 13,923 | 40.0% | 45.0% | |
| 44.12% | 34 | 1.4 | 1,122 | 14,486 | 58.3% | 36.4% | |
| 65.63% | 32 | 6.3 | 1,266 | 13,647 | 71.4% | 61.1% | |
| 50.00% | 28 | 1.6 | 1,254 | 15,999 | 71.4% | 42.9% | |
| 44.44% | 27 | 6.1 | 1,219 | 13,946 | 41.7% | 46.7% | |
| 59.26% | 27 | 6.0 | 1,248 | 14,691 | 60.0% | 58.8% | |
| 60.00% | 25 | 1.5 | 1,208 | 14,135 | 45.5% | 71.4% | |
| 63.64% | 22 | 2.0 | 1,412 | 15,520 | 85.7% | 53.3% | |
| 63.64% | 22 | 6.0 | 1,331 | 15,661 | 62.5% | 64.3% | |
| 57.89% | 19 | 1.2 | 1,111 | 13,727 | 37.5% | 72.7% | |
| 36.84% | 19 | 6.5 | 1,280 | 14,545 | 16.7% | 46.1% | |
| 42.11% | 19 | 1.5 | 1,295 | 15,863 | 40.0% | 42.9% | |
| 57.89% | 19 | 1.4 | 1,150 | 14,330 | 71.4% | 50.0% | |
| 47.06% | 17 | 6.4 | 1,294 | 15,528 | 50.0% | 46.1% | |
| 76.47% | 17 | 1.2 | 1,066 | 13,394 | 66.7% | 87.5% | |
| 47.06% | 17 | 1.8 | 1,198 | 14,513 | 50.0% | 46.1% | |
| 75.00% | 16 | 1.4 | 1,298 | 14,714 | 66.7% | 80.0% | |
| 56.25% | 16 | 1.5 | 1,140 | 13,022 | 50.0% | 62.5% | |
| 26.67% | 15 | 1.3 | 1,034 | 12,146 | 27.3% | 25.0% | |
| 33.33% | 15 | 2.1 | 1,142 | 13,213 | 20.0% | 40.0% | |
| 35.71% | 14 | 1.1 | 1,120 | 13,852 | 25.0% | 50.0% | |
| 38.46% | 13 | 1.2 | 1,083 | 13,389 | 16.7% | 57.1% | |
| 38.46% | 13 | 1.4 | 1,186 | 14,427 | 40.0% | 37.5% | |
| 23.08% | 13 | 2.2 | 1,010 | 10,855 | 22.2% | 25.0% | |
| 46.15% | 13 | 6.0 | 1,246 | 13,804 | 50.0% | 44.4% | |
| 53.85% | 13 | 7.1 | 1,164 | 13,192 | 42.9% | 66.7% | |
| 50.00% | 12 | 3.7 | 1,319 | 14,921 | 80.0% | 28.6% | |
| 50.00% | 12 | 1.2 | 1,228 | 14,553 | 25.0% | 62.5% | |
| 25.00% | 12 | 6.5 | 1,364 | 14,041 | 33.3% | 16.7% | |
| 83.33% | 12 | 1.4 | 1,238 | 15,117 | 66.7% | 88.9% | |
| 25.00% | 12 | 1.6 | 1,126 | 15,193 | 25.0% | 25.0% | |
| 66.67% | 12 | 7.3 | 1,539 | 18,810 | 100.0% | 60.0% | |
| 25.00% | 12 | 1.2 | 1,076 | 13,887 | 0.0% | 60.0% | |
| 50.00% | 12 | 1.3 | 1,038 | 11,954 | 50.0% | 50.0% | |
| 63.64% | 11 | 6.8 | 1,405 | 15,260 | 60.0% | 66.7% | |
| 63.64% | 11 | 2.9 | 1,092 | 13,992 | 66.7% | 62.5% | |
| 27.27% | 11 | 1.3 | 1,125 | 12,250 | 20.0% | 33.3% | |
| 18.18% | 11 | 1.5 | 1,183 | 12,730 | 25.0% | 14.3% | |
| 45.45% | 11 | 6.7 | 1,230 | 14,914 | 40.0% | 50.0% | |
| 70.00% | 10 | 5.9 | 1,269 | 12,687 | 60.0% | 80.0% | |
| 60.00% | 10 | 7.0 | 1,168 | 13,689 | 60.0% | 60.0% | |
| 60.00% | 10 | 1.4 | 1,388 | 13,386 | 60.0% | 60.0% | |
| 70.00% | 10 | 7.1 | 1,333 | 14,530 | 75.0% | 66.7% | |
| 33.33% | 9 | 7.3 | 1,212 | 13,578 | 20.0% | 50.0% | |
| 44.44% | 9 | 3.8 | 990 | 13,717 | 100.0% | 28.6% | |
| 22.22% | 9 | 6.8 | 1,088 | 12,891 | 20.0% | 25.0% | |
| 66.67% | 9 | 1.6 | 1,569 | 15,986 | 75.0% | 60.0% | |
| 66.67% | 9 | 1.8 | 1,227 | 14,337 | 80.0% | 50.0% | |
| 33.33% | 9 | 4.8 | 1,072 | 13,644 | 25.0% | 40.0% | |
| 50.00% | 8 | 6.7 | 1,221 | 14,594 | 60.0% | 33.3% | |
| 37.50% | 8 | 1.8 | 1,338 | 16,668 | 100.0% | 28.6% | |
| 42.86% | 7 | 2.1 | 1,106 | 12,567 | 33.3% | 50.0% | |
| 42.86% | 7 | 2.2 | 1,172 | 11,380 | 60.0% | 0.0% | |
| 42.86% | 7 | 2.0 | 1,374 | 13,477 | 50.0% | 33.3% | |
| 42.86% | 7 | 7.2 | 1,125 | 12,970 | 33.3% | 50.0% | |
| 71.43% | 7 | 5.7 | 1,054 | 13,552 | 0.0% | 100.0% | |
| 71.43% | 7 | 1.2 | 1,496 | 15,885 | 0.0% | 83.3% | |
| 14.29% | 7 | 2.9 | 1,232 | 13,716 | 0.0% | 33.3% | |
| 57.14% | 7 | 2.0 | 1,191 | 12,954 | 66.7% | 50.0% | |
| 42.86% | 7 | 2.1 | 1,193 | 15,035 | 50.0% | 40.0% | |
| 85.71% | 7 | 1.6 | 1,346 | 17,646 | 100.0% | 80.0% | |
| 57.14% | 7 | 2.8 | 1,235 | 15,411 | 100.0% | 40.0% | |
| 50.00% | 6 | 6.9 | 1,279 | 12,344 | 25.0% | 100.0% | |
| 66.67% | 6 | 1.3 | 1,384 | 14,201 | 66.7% | 66.7% | |
| 66.67% | 6 | 1.3 | 963 | 11,486 | 100.0% | 50.0% | |
| 33.33% | 6 | 5.4 | 1,552 | 14,532 | 0.0% | 33.3% | |
| 33.33% | 6 | 2.4 | 813 | 11,296 | 50.0% | 0.0% | |
| 66.67% | 6 | 4.0 | 1,151 | 14,663 | 0.0% | 80.0% | |
| 16.67% | 6 | 1.4 | 1,192 | 15,110 | 0.0% | 20.0% | |
| 50.00% | 6 | 1.6 | 1,268 | 17,240 | 0.0% | 60.0% | |
| 60.00% | 5 | 5.9 | 1,191 | 13,249 | 66.7% | 50.0% | |
| 40.00% | 5 | 1.6 | 1,103 | 12,879 | 0.0% | 66.7% | |
| 40.00% | 5 | 6.8 | 1,003 | 11,916 | 0.0% | 50.0% | |
| 60.00% | 5 | 5.1 | 1,477 | 19,353 | 100.0% | 50.0% | |
| 20.00% | 5 | 2.8 | 1,103 | 12,981 | 50.0% | 0.0% | |
| 60.00% | 5 | 3.1 | 728 | 9,383 | 75.0% | 0.0% | |
| 60.00% | 5 | 7.1 | 1,034 | 14,845 | 0.0% | 75.0% | |
| 20.00% | 5 | 8.2 | 1,155 | 13,536 | 50.0% | 0.0% | |
| 60.00% | 5 | 2.3 | 822 | 13,484 | 66.7% | 50.0% | |
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Karthus vs Sion - Frequently Asked Questions
How does Karthus do against Sion in League of Legends?
Sion wins the Karthus vs Sion matchup with a 85.7% win rate compared to Karthus's 14.3%, a 71.4 percentage point difference. This data is based on 7 recent ranked games in patch 26.7.
How does Karthus do against Sion in the early game?
In the early game, Sion has the advantage against Karthus with a 100.0% win rate versus 0.0%. Sion players should look to press their lane advantage through aggressive trades and wave control during the first 15 minutes.
How does Karthus do against Sion in the late game?
In the late game, Sion takes over the Karthus vs Sion matchup with a 66.7% win rate compared to 33.3%. Sion scales better into team fights and objective contests after 25 minutes.
Who wins the Karthus vs Sion matchup?
Sion wins the matchup against Karthus with a 85.7% win rate in League of Legends patch 26.7. The 71.4 percentage point advantage means Sion is significantly favored in this lane matchup based on 7 games analyzed.
What is the best Karthus build against Sion?
The best Karthus build against Sion includes Liandry's Torment, Zhonya's Hourglass, 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 Sion?
The best Karthus runes against Sion use the Inspiration primary tree with Sorcery secondary. This rune setup achieves a 100.0% win rate in the Karthus vs Sion matchup. See the full rune breakdown in the matchup comparison above.
Does Karthus counter Sion?
No, Karthus struggles against Sion with only a 14.3% win rate. Sion has the advantage in this matchup. Karthus players should focus on safe farming and avoiding extended trades to minimize Sion's lead.
How do I play Karthus against Sion?
When playing Karthus against Sion, play cautiously and avoid Sion's power spikes. Look for jungle assistance and team-dependent plays since Sion has the statistical advantage at most stages. Use the matchup-specific build and runes above to optimize your chances.