Karthusvs Jayce
Karthus vs Jayce is a very close matchup in LoL patch 26.11. Karthus wins with a 50.0% win rate (+0.0%) over Jayce based on 6 games. Jayce wins the early laning phase while Karthus scales better into the late game. Below you'll find the best Karthus build, runes, laning stats, and strategies for the Karthus vs Jayce 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 Jayce Matchup?
Karthus vs Jayce Matchup Summary
The Karthus vs Jayce matchup is essentially a coin-flip matchup in League of Legends ranked play. Based on 6 recent matches analyzed, Karthus wins with a 50.0% win rate compared to Jayce's 50.0%, giving Karthus a 0.0 percentage point advantage. Game phase dynamics play a critical role here: Jayce controls the early laning stage, but Karthus outscales as the game goes longer. The matchup shifts dramatically depending on game length — Jayce needs to press advantages before Karthus reaches their power spikes, while Karthus should focus on safe farming and hitting key item breakpoints. The most significant statistical gap is in sustain, where Jayce leads by 381 HP/min — a difference that heavily influences the outcome of trades and skirmishes. Karthus has a statistical edge, but the margin is close enough that respecting Jayce's strengths is important. Trade when cooldowns are favorable, track the enemy jungler, and build toward your strongest item spikes to convert the slight advantage into a decisive lead. Understanding these matchup dynamics is essential for champion select decisions and in-game strategy when facing this lane opponent.
Karthus vs Jayce Laning Phase Breakdown
Karthus is favored during the laning phase against Jayce, winning 3 out of 5 key stat categories. Karthus holds advantages in farming, damage and crowd control, making them the stronger laner in this matchup.
Best Karthus Build Against Jayce
Ionian Boots of Lucidity is the optimal boots choice against Jayce, providing the mobility and stats Karthus needs most in this matchup. The top-performing core items for Karthus against Jayce are Shadowflame, Malignance and Banshee's Veil. This combination gives Karthus 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 Jayce. Adjustments may be needed based on team compositions and game state, but this build provides the strongest foundation for the Karthus vs Jayce matchup.
Early Game vs Late Game
Karthus0.0%
Jayce100.0%Karthus75.0%Jayce25.0%Jayce 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 Jayce can dictate the pace of the lane from level 1, controlling trades, wave state, and river priority.
Karthus is far superior in the late game (25+ minutes), boasting a 75.0% win rate — 50.0 points above Jayce. Extended games heavily favor Karthus, whose kit and scaling make them a dominant force in team fights and objective control.
This matchup features a dramatic power shift: Jayce must aggressively press their early advantage and close out the game before Karthus reaches their scaling breakpoints. If Karthus 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 Karthus Runes Against Jayce
Domination
Sorcery
The Domination primary with Sorcery secondary combination helps Karthus maximize their potential in this closely contested matchup, providing the right mix of offensive and defensive tools to edge out Jayce.
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% | |
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Karthus vs Jayce - Frequently Asked Questions
How does Karthus do against Jayce in League of Legends?
Karthus wins the Karthus vs Jayce matchup with a 50.0% win rate compared to Jayce's 50.0%, a 0.0 percentage point difference. This data is based on 6 recent ranked games in patch 26.11.
How does Karthus do against Jayce in the early game?
In the early game, Jayce has the advantage against Karthus with a 100.0% win rate versus 0.0%. Jayce players should look to press their lane advantage through aggressive trades and wave control during the first 15 minutes.
How does Karthus do against Jayce in the late game?
In the late game, Karthus takes over the Karthus vs Jayce matchup with a 75.0% win rate compared to 25.0%. Karthus scales better into team fights and objective contests after 25 minutes.
Who wins the Karthus vs Jayce matchup?
Karthus wins the matchup against Jayce with a 50.0% win rate in League of Legends patch 26.11. The 0.0 percentage point advantage means Karthus is slightly favored in this lane matchup based on 6 games analyzed.
What is the best Karthus build against Jayce?
The best Karthus build against Jayce includes Shadowflame, Malignance, Banshee's Veil 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 Karthus runes against Jayce?
The best Karthus runes against Jayce use the Domination primary tree with Sorcery secondary. This rune setup achieves a 100.0% win rate in the Karthus vs Jayce matchup. See the full rune breakdown in the matchup comparison above.
Does Karthus counter Jayce?
Yes, Karthus has a favorable matchup against Jayce with a 50.0% win rate. Karthus slightly edges out Jayce in lane based on current patch 26.11 data.
How do I play Karthus against Jayce?
When playing Karthus against Jayce, leverage your statistical advantages by trading aggressively during favorable windows. Play safe early and scale into your power spikes where you outperform Jayce. Build the recommended items and runes for this specific matchup for the best results.