Karthus - League of Legends Champion
Win Rate
49.3%
Pick Rate
1.3%

Karthusvs Smolder

DMage
Patch26.7
Matches949,984
LaneAll Lanes
TierAll Tiers
Last UpdatedApr 22, 2026
MethodologyData Methodology

Karthus vs Smolder is a decisive matchup in LoL patch 26.7. Smolder wins with a 52.9% win rate (+5.9%) over Karthus based on 17 games. Karthus wins the early laning phase while Smolder scales better into the late game. Below you'll find the best Karthus build, runes, laning stats, and strategies for the Karthus vs Smolder 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.

Compare against an opponent
Smolder - 47.1% win rateSmolder(47.1%)
Karthus - 47.1% win rate in this matchup
Karthus
47.1% WR
VS
Smolder vs Karthus matchup - 52.9% win rate
Smolder
52.9% WR

Who Wins the Karthus vs Smolder Matchup?

Smolder wins the Karthus vs Smolder matchup
Winner
Smolder
Matches: 17
47.1%
Win Rate
52.9%
6.4
CS / min
7.0
1,294
DMG / min
1,133
15,528
Gold / game
16,242
83
Heal / min
263
451
DMG Mitigated / min
452
0.6
CC / min
0.4
50.0%
Early Game WR
50.0%
46.1%
Late Game WR
53.9%

Karthus vs Smolder Matchup Summary

The Karthus vs Smolder matchup is a moderate matchup in League of Legends ranked play. Based on 17 recent matches analyzed, Smolder wins with a 52.9% win rate compared to Karthus's 47.1%, giving Smolder a 5.9 percentage point advantage. Game phase dynamics play a critical role here: Karthus controls the early laning stage, but Smolder outscales as the game goes longer. The matchup shifts dramatically depending on game length — Karthus needs to press advantages before Smolder reaches their power spikes, while Smolder should focus on safe farming and hitting key item breakpoints. The most significant statistical gap is in crowd control, where Karthus leads by 0.2s CC/min — a difference that heavily influences the outcome of trades and skirmishes. While Smolder is slightly favored, Karthus can absolutely win this lane through smart trading patterns and wave management. Focus on playing around your cooldowns, conceding CS only when necessary, and capitalizing on Smolder's mistakes. Understanding these matchup dynamics is essential for champion select decisions and in-game strategy when facing this lane opponent.

Karthus vs Smolder Laning Phase Breakdown

Smolder wins the laning phase against Karthus in League of Legends

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

Farming
6.4Karthus
7.0Smolder
Smolder edges out Karthus by 0.5 CS per minute — a moderate farming advantage that adds up to roughly 8 CS over a 15-minute laning phase. This translates to earlier component purchases and slightly faster power spikes for Smolder.
Damage
1,294Karthus
1,133Smolder
Karthus heavily out-damages Smolder by 161 DMG/min, dominating both short trades and all-in fights. Smolder 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
15,528Karthus
16,242Smolder
Smolder earns 714 more gold per game than Karthus, equivalent to roughly one additional component item. This economic edge comes from a combination of better farming, kill participation, and objective control, giving Smolder slightly faster item completions.
Utility
0.6Karthus
0.4Smolder
Both Karthus and Smolder provide similar amounts of crowd control (0.2s/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
533Karthus
715Smolder
Smolder vastly out-sustains Karthus, healing and mitigating 182 more damage per minute. This massive durability gap means Smolder 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 Karthus Build Against Smolder

Spellslinger's Shoes is the optimal boots choice against Smolder, providing the mobility and stats Karthus needs most in this matchup. The top-performing core items for Karthus against Smolder are Shadowflame, Void Staff and Malignance. 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 Smolder matchup.

Early Game vs Late Game

Early Game
Karthus
50.0%
+0.0% advantage
Karthus early game win rateKarthus50.0%
Smolder early game win rateSmolder50.0%
Late Game
Smolder
53.9%
+7.7% advantage
Karthus late game win rateKarthus46.1%
Smolder late game win rateSmolder53.9%

The early game (first 15 minutes) is a toss-up between Karthus and Smolder, 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.

Smolder is far superior in the late game (25+ minutes), boasting a 53.9% win rate — 7.7 points above Karthus. Extended games heavily favor Smolder, 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 Smolder 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 Smolder

Domination rune tree - Karthus primary runes vs SmolderDomination
Dark Harvest - best Karthus rune vs SmolderCheap Shot - best Karthus rune vs SmolderSixth Sense - best Karthus rune vs SmolderUltimate Hunter - best Karthus rune vs Smolder
Precision rune tree - Karthus secondary runes vs SmolderPrecision
Presence of Mind - best Karthus rune vs SmolderLast Stand - best Karthus rune vs Smolder
100.0% WR

The Domination and Precision rune setup gives Karthus the best tools to compete against Smolder 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.

Karthus 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
48.78%411.51,24613,63464.7%37.5%
45.00%401.71,19914,67650.0%41.7%
37.84%371.81,20313,45342.9%34.8%
59.46%376.81,20414,13361.1%57.9%
58.33%361.41,18514,86346.1%65.2%
42.86%351.61,14713,92340.0%45.0%
44.12%341.41,12214,48658.3%36.4%
65.63%326.31,26613,64771.4%61.1%
50.00%281.61,25415,99971.4%42.9%
44.44%276.11,21913,94641.7%46.7%
59.26%276.01,24814,69160.0%58.8%
60.00%251.51,20814,13545.5%71.4%
63.64%222.01,41215,52085.7%53.3%
63.64%226.01,33115,66162.5%64.3%
57.89%191.21,11113,72737.5%72.7%
36.84%196.51,28014,54516.7%46.1%
42.11%191.51,29515,86340.0%42.9%
57.89%191.41,15014,33071.4%50.0%
47.06%176.41,29415,52850.0%46.1%
76.47%171.21,06613,39466.7%87.5%
47.06%171.81,19814,51350.0%46.1%
75.00%161.41,29814,71466.7%80.0%
56.25%161.51,14013,02250.0%62.5%
26.67%151.31,03412,14627.3%25.0%
33.33%152.11,14213,21320.0%40.0%
35.71%141.11,12013,85225.0%50.0%
38.46%131.21,08313,38916.7%57.1%
38.46%131.41,18614,42740.0%37.5%
23.08%132.21,01010,85522.2%25.0%
46.15%136.01,24613,80450.0%44.4%
53.85%137.11,16413,19242.9%66.7%
50.00%123.71,31914,92180.0%28.6%
50.00%121.21,22814,55325.0%62.5%
25.00%126.51,36414,04133.3%16.7%
83.33%121.41,23815,11766.7%88.9%
25.00%121.61,12615,19325.0%25.0%
66.67%127.31,53918,810100.0%60.0%
25.00%121.21,07613,8870.0%60.0%
50.00%121.31,03811,95450.0%50.0%
63.64%116.81,40515,26060.0%66.7%
63.64%112.91,09213,99266.7%62.5%
27.27%111.31,12512,25020.0%33.3%
18.18%111.51,18312,73025.0%14.3%
45.45%116.71,23014,91440.0%50.0%
70.00%105.91,26912,68760.0%80.0%
60.00%107.01,16813,68960.0%60.0%
60.00%101.41,38813,38660.0%60.0%
70.00%107.11,33314,53075.0%66.7%
33.33%97.31,21213,57820.0%50.0%
44.44%93.899013,717100.0%28.6%
22.22%96.81,08812,89120.0%25.0%
66.67%91.61,56915,98675.0%60.0%
66.67%91.81,22714,33780.0%50.0%
33.33%94.81,07213,64425.0%40.0%
50.00%86.71,22114,59460.0%33.3%
37.50%81.81,33816,668100.0%28.6%
42.86%72.11,10612,56733.3%50.0%
42.86%72.21,17211,38060.0%0.0%
42.86%72.01,37413,47750.0%33.3%
42.86%77.21,12512,97033.3%50.0%
71.43%75.71,05413,5520.0%100.0%
71.43%71.21,49615,8850.0%83.3%
14.29%72.91,23213,7160.0%33.3%
57.14%72.01,19112,95466.7%50.0%
42.86%72.11,19315,03550.0%40.0%
85.71%71.61,34617,646100.0%80.0%
57.14%72.81,23515,411100.0%40.0%
50.00%66.91,27912,34425.0%100.0%
66.67%61.31,38414,20166.7%66.7%
66.67%61.396311,486100.0%50.0%
33.33%65.41,55214,5320.0%33.3%
33.33%62.481311,29650.0%0.0%
66.67%64.01,15114,6630.0%80.0%
16.67%61.41,19215,1100.0%20.0%
50.00%61.61,26817,2400.0%60.0%
60.00%55.91,19113,24966.7%50.0%
40.00%51.61,10312,8790.0%66.7%
40.00%56.81,00311,9160.0%50.0%
60.00%55.11,47719,353100.0%50.0%
20.00%52.81,10312,98150.0%0.0%
60.00%53.17289,38375.0%0.0%
60.00%57.11,03414,8450.0%75.0%
20.00%58.21,15513,53650.0%0.0%
60.00%52.382213,48466.7%50.0%

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Karthus vs Smolder - Frequently Asked Questions

How does Karthus do against Smolder in League of Legends?

Smolder wins the Karthus vs Smolder matchup with a 52.9% win rate compared to Karthus's 47.1%, a 5.9 percentage point difference. This data is based on 17 recent ranked games in patch 26.7.

How does Karthus do against Smolder in the early game?

In the early game, Karthus has the advantage against Smolder 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 Smolder in the late game?

In the late game, Smolder takes over the Karthus vs Smolder matchup with a 53.9% win rate compared to 46.1%. Smolder scales better into team fights and objective contests after 25 minutes.

Who wins the Karthus vs Smolder matchup?

Smolder wins the matchup against Karthus with a 52.9% win rate in League of Legends patch 26.7. The 5.9 percentage point advantage means Smolder is significantly favored in this lane matchup based on 17 games analyzed.

What is the best Karthus build against Smolder?

The best Karthus build against Smolder includes Shadowflame, Void Staff, Malignance with Spellslinger's Shoes. Check the matchup breakdown above for the full item path and build order.

What are the best Karthus runes against Smolder?

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

Does Karthus counter Smolder?

No, Karthus struggles against Smolder with only a 47.1% win rate. Smolder has the advantage in this matchup. Karthus players should focus on safe farming and avoiding extended trades to minimize Smolder's lead.

How do I play Karthus against Smolder?

When playing Karthus against Smolder, play cautiously and avoid Smolder's power spikes. Look for jungle assistance and team-dependent plays since Smolder has the statistical advantage at most stages. Use the matchup-specific build and runes above to optimize your chances.