Jaycevs Karthus
Jayce vs Karthus is a decisive matchup in LoL patch 26.7. Karthus wins with a 60.0% win rate (+20.0%) over Jayce based on 5 games. Karthus wins the early laning phase while Jayce scales better into the late game. Below you'll find the best Jayce build, runes, laning stats, and strategies for the Jayce vs Karthus matchup.
Jayce Matchup Breakdown
Use the dropdown to select an opponent and see a detailed breakdown of how Jayce 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.
Karthus(40.0%)Who Wins the Jayce vs Karthus Matchup?
Jayce vs Karthus Matchup Summary
The Jayce vs Karthus matchup is a decisive matchup in League of Legends ranked play. Based on 5 recent matches analyzed, Karthus wins with a 60.0% win rate compared to Jayce's 40.0%, giving Karthus a 20.0 percentage point advantage. Game phase dynamics play a critical role here: Karthus controls the early laning stage, but Jayce outscales as the game goes longer. The matchup shifts dramatically depending on game length — Karthus needs to press advantages before Jayce reaches their power spikes, while Jayce should focus on safe farming and hitting key item breakpoints. The most significant statistical gap is in damage output, where Karthus leads by 259 DMG/min — a difference that heavily influences the outcome of trades and skirmishes. Karthus has a strong advantage in this matchup. Jayce 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.
Jayce vs Karthus Laning Phase Breakdown
Karthus is favored during the laning phase against Jayce, winning 4 out of 5 key stat categories. Karthus holds advantages in damage, gold income, crowd control and sustain, making them the stronger laner in this matchup.
Early Game vs Late Game
Jayce33.3%Karthus66.7%Jayce50.0%Karthus50.0%Karthus dominates the early game (first 15 minutes) with a commanding 66.7% win rate — a 33.3 percentage point lead over Jayce. This lopsided early game means Karthus can dictate the pace of the lane from level 1, controlling trades, wave state, and river priority.
Late game (25+ minutes) is equally balanced, with Jayce at 50.0% win rate — only 0.0 points ahead of Karthus. Team fight execution and macro play determine the winner at this stage, not champion matchup advantage.
The power dynamics shift as the game progresses — Karthus has the edge early, but Jayce 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 Jayce Runes Against Karthus
Precision
Domination
The Precision and Domination rune setup gives Jayce the best tools to compete against Karthus in this difficult matchup, compensating for the statistical disadvantages with optimal rune synergies.
Jayce matchup data for League of Legends patch 26.7. The table below shows Jayce'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 Jayce 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 |
|---|---|---|---|---|---|---|---|
| 48.33% | 60 | 7.1 | 1,029 | 13,914 | 43.5% | 51.4% | |
| 45.45% | 44 | 6.7 | 771 | 12,575 | 52.9% | 40.7% | |
| 58.33% | 36 | 7.0 | 1,067 | 12,522 | 71.4% | 40.0% | |
| 50.00% | 34 | 6.8 | 910 | 11,744 | 62.5% | 38.9% | |
| 58.06% | 31 | 7.4 | 1,200 | 12,708 | 66.7% | 46.1% | |
| 64.52% | 31 | 7.1 | 975 | 13,391 | 58.8% | 71.4% | |
| 48.28% | 29 | 5.4 | 981 | 13,195 | 40.0% | 57.1% | |
| 46.43% | 28 | 7.4 | 963 | 13,366 | 45.5% | 47.1% | |
| 57.69% | 26 | 6.1 | 1,038 | 11,397 | 60.0% | 54.5% | |
| 34.62% | 26 | 6.2 | 941 | 10,938 | 33.3% | 40.0% | |
| 60.00% | 25 | 6.6 | 1,009 | 11,795 | 61.5% | 58.3% | |
| 54.17% | 24 | 7.9 | 882 | 12,146 | 63.6% | 46.1% | |
| 58.33% | 24 | 7.1 | 961 | 13,405 | 63.6% | 53.9% | |
| 50.00% | 24 | 5.5 | 920 | 14,413 | 42.9% | 52.9% | |
| 70.83% | 24 | 7.4 | 897 | 12,147 | 64.3% | 80.0% | |
| 30.43% | 23 | 4.3 | 1,282 | 14,947 | 57.1% | 18.8% | |
| 45.45% | 22 | 6.9 | 941 | 13,652 | 42.9% | 46.7% | |
| 31.82% | 22 | 5.9 | 933 | 12,610 | 0.0% | 43.8% | |
| 47.62% | 21 | 6.8 | 915 | 11,555 | 45.5% | 50.0% | |
| 50.00% | 20 | 5.5 | 885 | 13,266 | 22.2% | 72.7% | |
| 52.63% | 19 | 7.1 | 909 | 10,780 | 33.3% | 85.7% | |
| 38.89% | 18 | 4.3 | 872 | 13,419 | 20.0% | 62.5% | |
| 50.00% | 18 | 7.5 | 1,054 | 13,643 | 53.9% | 40.0% | |
| 38.89% | 18 | 6.3 | 661 | 11,932 | 60.0% | 12.5% | |
| 66.67% | 18 | 7.3 | 1,002 | 14,698 | 83.3% | 58.3% | |
| 55.56% | 18 | 1.3 | 961 | 15,551 | 62.5% | 50.0% | |
| 58.82% | 17 | 6.2 | 1,003 | 12,223 | 50.0% | 66.7% | |
| 52.94% | 17 | 6.1 | 883 | 11,513 | 63.6% | 33.3% | |
| 56.25% | 16 | 7.2 | 1,054 | 13,471 | 50.0% | 66.7% | |
| 46.67% | 15 | 3.3 | 910 | 14,170 | 50.0% | 44.4% | |
| 40.00% | 15 | 1.9 | 965 | 14,951 | 50.0% | 28.6% | |
| 60.00% | 15 | 5.3 | 992 | 13,746 | 57.1% | 62.5% | |
| 60.00% | 15 | 6.2 | 956 | 10,641 | 50.0% | 80.0% | |
| 73.33% | 15 | 3.6 | 903 | 14,128 | 87.5% | 57.1% | |
| 42.86% | 14 | 3.9 | 888 | 12,914 | 28.6% | 57.1% | |
| 71.43% | 14 | 7.2 | 1,025 | 12,640 | 72.7% | 66.7% | |
| 50.00% | 14 | 7.0 | 891 | 10,471 | 45.5% | 66.7% | |
| 23.08% | 13 | 6.6 | 874 | 12,125 | 0.0% | 50.0% | |
| 46.15% | 13 | 7.7 | 1,228 | 13,475 | 66.7% | 28.6% | |
| 23.08% | 13 | 1.8 | 879 | 13,657 | 25.0% | 20.0% | |
| 38.46% | 13 | 6.9 | 966 | 11,852 | 25.0% | 60.0% | |
| 66.67% | 12 | 1.3 | 1,071 | 15,748 | 50.0% | 83.3% | |
| 25.00% | 12 | 7.2 | 1,085 | 12,666 | 16.7% | 33.3% | |
| 75.00% | 12 | 4.4 | 1,007 | 14,309 | 60.0% | 85.7% | |
| 50.00% | 12 | 6.7 | 954 | 12,487 | 40.0% | 57.1% | |
| 33.33% | 12 | 2.5 | 920 | 14,328 | 50.0% | 16.7% | |
| 72.73% | 11 | 7.4 | 1,053 | 12,026 | 66.7% | 100.0% | |
| 63.64% | 11 | 1.5 | 1,136 | 17,793 | 33.3% | 75.0% | |
| 63.64% | 11 | 7.2 | 849 | 12,486 | 50.0% | 80.0% | |
| 36.36% | 11 | 7.1 | 829 | 10,335 | 25.0% | 66.7% | |
| 70.00% | 10 | 2.1 | 900 | 13,679 | 60.0% | 80.0% | |
| 70.00% | 10 | 7.0 | 778 | 12,334 | 80.0% | 60.0% | |
| 60.00% | 10 | 7.0 | 987 | 13,185 | 66.7% | 57.1% | |
| 50.00% | 10 | 7.2 | 894 | 13,045 | 50.0% | 50.0% | |
| 40.00% | 10 | 7.1 | 974 | 13,997 | 50.0% | 25.0% | |
| 50.00% | 10 | 3.6 | 816 | 14,768 | 50.0% | 50.0% | |
| 44.44% | 9 | 6.4 | 899 | 11,551 | 57.1% | 0.0% | |
| 33.33% | 9 | 3.0 | 815 | 11,765 | 33.3% | 33.3% | |
| 77.78% | 9 | 5.7 | 883 | 11,860 | 80.0% | 75.0% | |
| 55.56% | 9 | 6.1 | 801 | 12,039 | 66.7% | 33.3% | |
| 55.56% | 9 | 7.6 | 829 | 12,674 | 50.0% | 60.0% | |
| 22.22% | 9 | 1.0 | 848 | 13,016 | 14.3% | 50.0% | |
| 66.67% | 9 | 6.3 | 1,065 | 12,579 | 100.0% | 40.0% | |
| 66.67% | 9 | 7.0 | 888 | 12,347 | 62.5% | 100.0% | |
| 25.00% | 8 | 5.9 | 912 | 8,683 | 25.0% | 25.0% | |
| 75.00% | 8 | 7.1 | 926 | 13,996 | 0.0% | 85.7% | |
| 100.00% | 8 | 7.5 | 938 | 12,456 | 100.0% | 100.0% | |
| 37.50% | 8 | 7.3 | 923 | 12,226 | 40.0% | 33.3% | |
| 50.00% | 8 | 4.0 | 984 | 13,121 | 33.3% | 60.0% | |
| 62.50% | 8 | 7.0 | 916 | 9,734 | 100.0% | 0.0% | |
| 25.00% | 8 | 6.9 | 689 | 11,513 | 66.7% | 0.0% | |
| 37.50% | 8 | 6.8 | 1,101 | 14,144 | 0.0% | 42.9% | |
| 71.43% | 7 | 6.3 | 746 | 12,028 | 100.0% | 60.0% | |
| 42.86% | 7 | 5.8 | 990 | 16,167 | 0.0% | 42.9% | |
| 42.86% | 7 | 2.6 | 645 | 7,905 | 33.3% | 50.0% | |
| 42.86% | 7 | 1.6 | 623 | 10,524 | 20.0% | 100.0% | |
| 57.14% | 7 | 5.5 | 929 | 13,557 | 25.0% | 100.0% | |
| 71.43% | 7 | 1.3 | 868 | 15,568 | 50.0% | 100.0% | |
| 28.57% | 7 | 6.7 | 903 | 12,927 | 50.0% | 20.0% | |
| 71.43% | 7 | 7.5 | 773 | 12,152 | 75.0% | 66.7% | |
| 66.67% | 6 | 6.4 | 835 | 12,118 | 50.0% | 100.0% | |
| 50.00% | 6 | 1.4 | 922 | 14,749 | 66.7% | 33.3% | |
| 66.67% | 6 | 6.5 | 1,079 | 13,554 | 100.0% | 0.0% | |
| 66.67% | 6 | 1.8 | 1,138 | 16,998 | 100.0% | 33.3% | |
| 33.33% | 6 | 7.4 | 1,063 | 12,063 | 33.3% | 33.3% | |
| 33.33% | 6 | 7.4 | 841 | 13,689 | 33.3% | 33.3% | |
| 33.33% | 6 | 6.8 | 866 | 12,699 | 50.0% | 25.0% | |
| 83.33% | 6 | 3.5 | 777 | 10,075 | 100.0% | 50.0% | |
| 50.00% | 6 | 7.3 | 865 | 7,623 | 50.0% | 0.0% | |
| 83.33% | 6 | 6.9 | 989 | 10,347 | 83.3% | 0.0% | |
| 50.00% | 6 | 6.8 | 799 | 11,520 | 50.0% | 50.0% | |
| 20.00% | 5 | 2.1 | 1,109 | 16,635 | 0.0% | 25.0% | |
| 40.00% | 5 | 7.1 | 793 | 11,454 | 50.0% | 33.3% | |
| 60.00% | 5 | 1.1 | 789 | 13,569 | 50.0% | 66.7% | |
| 60.00% | 5 | 3.5 | 828 | 11,408 | 66.7% | 50.0% | |
| 60.00% | 5 | 1.2 | 1,010 | 14,244 | 75.0% | 0.0% | |
| 40.00% | 5 | 3.0 | 563 | 11,753 | 33.3% | 50.0% | |
| 40.00% | 5 | 6.4 | 947 | 12,032 | 0.0% | 66.7% | |
| 40.00% | 5 | 1.3 | 1,073 | 16,384 | 0.0% | 50.0% | |
| 40.00% | 5 | 1.7 | 1,371 | 18,103 | 0.0% | 66.7% | |
| 60.00% | 5 | 7.3 | 751 | 12,488 | 50.0% | 66.7% | |
| 60.00% | 5 | 1.4 | 1,026 | 17,605 | 100.0% | 50.0% | |
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Jayce vs Karthus - Frequently Asked Questions
How does Jayce do against Karthus in League of Legends?
Karthus wins the Jayce vs Karthus matchup with a 60.0% win rate compared to Jayce's 40.0%, a 20.0 percentage point difference. This data is based on 5 recent ranked games in patch 26.7.
How does Jayce do against Karthus in the early game?
In the early game, Karthus has the advantage against Jayce with a 66.7% win rate versus 33.3%. Karthus players should look to press their lane advantage through aggressive trades and wave control during the first 15 minutes.
How does Jayce do against Karthus in the late game?
In the late game, Jayce takes over the Jayce vs Karthus matchup with a 50.0% win rate compared to 50.0%. Jayce scales better into team fights and objective contests after 25 minutes.
Who wins the Jayce vs Karthus matchup?
Karthus wins the matchup against Jayce with a 60.0% win rate in League of Legends patch 26.7. The 20.0 percentage point advantage means Karthus is significantly favored in this lane matchup based on 5 games analyzed.
What is the best Jayce build against Karthus?
The best Jayce build against Karthus includes optimized core items. Check the matchup breakdown above for the full item path and build order.
What are the best Jayce runes against Karthus?
The best Jayce runes against Karthus use the Precision primary tree with Domination secondary. This rune setup achieves a 100.0% win rate in the Jayce vs Karthus matchup. See the full rune breakdown in the matchup comparison above.
Does Jayce counter Karthus?
No, Jayce struggles against Karthus with only a 40.0% win rate. Karthus has the advantage in this matchup. Jayce players should focus on safe farming and avoiding extended trades to minimize Karthus's lead.
How do I play Jayce against Karthus?
When playing Jayce 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.