Mordekaiser - League of Legends Champion
Win Rate
51.4%
Pick Rate
5.1%

Mordekaiservs Sejuani

AFighterMage
Patch26.7
Matches949,984
LaneAll Lanes
TierAll Tiers
Last UpdatedApr 21, 2026
MethodologyData Methodology

Mordekaiser vs Sejuani is a very close matchup in LoL patch 26.7. Mordekaiser wins with a 50.0% win rate (+0.0%) over Sejuani based on 14 games. Mordekaiser wins the early laning phase while Sejuani scales better into the late game. Below you'll find the best Mordekaiser build, runes, laning stats, and strategies for the Mordekaiser vs Sejuani matchup.

Mordekaiser Matchup Breakdown

Use the dropdown to select an opponent and see a detailed breakdown of how Mordekaiser 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
Sejuani - 50.0% win rateSejuani(50.0%)
Mordekaiser - 50.0% win rate in this matchup
Mordekaiser
50.0% WR
VS
Sejuani vs Mordekaiser matchup - 50.0% win rate
Sejuani
50.0% WR

Who Wins the Mordekaiser vs Sejuani Matchup?

Mordekaiser wins the Mordekaiser vs Sejuani matchup
Winner
Mordekaiser
Matches: 14
50.0%
Win Rate
50.0%
3.7
CS / min
3.4
964
DMG / min
610
10,171
Gold / game
9,372
351
Heal / min
277
1,406
DMG Mitigated / min
1,475
0.8
CC / min
1.1
55.6%
Early Game WR
44.4%
40.0%
Late Game WR
60.0%

Mordekaiser vs Sejuani Matchup Summary

The Mordekaiser vs Sejuani matchup is essentially a coin-flip matchup in League of Legends ranked play. Based on 14 recent matches analyzed, Mordekaiser wins with a 50.0% win rate compared to Sejuani's 50.0%, giving Mordekaiser a 0.0 percentage point advantage. Game phase dynamics play a critical role here: Mordekaiser controls the early laning stage, but Sejuani outscales as the game goes longer. The matchup shifts dramatically depending on game length — Mordekaiser needs to press advantages before Sejuani reaches their power spikes, while Sejuani should focus on safe farming and hitting key item breakpoints. The most significant statistical gap is in damage output, where Mordekaiser leads by 354 DMG/min — a difference that heavily influences the outcome of trades and skirmishes. Mordekaiser has a statistical edge, but the margin is close enough that respecting Sejuani'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.

Mordekaiser vs Sejuani Laning Phase Breakdown

Mordekaiser wins the laning phase against Sejuani in League of Legends

Mordekaiser is favored during the laning phase against Sejuani, winning 4 out of 5 key stat categories. Mordekaiser holds advantages in farming, damage, gold income and sustain, making them the stronger laner in this matchup.

Farming
3.7Mordekaiser
3.4Sejuani
Mordekaiser and Sejuani farm at nearly identical rates in this matchup, with only a 0.3 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
964Mordekaiser
610Sejuani
Mordekaiser heavily out-damages Sejuani by 354 DMG/min, dominating both short trades and all-in fights. Sejuani should avoid extended combat and instead focus on burst trade patterns — short engages followed by immediate disengagement — to avoid letting Mordekaiser's sustained damage advantage take over.
Economy
10,171Mordekaiser
9,372Sejuani
Mordekaiser earns 798 more gold per game than Sejuani, equivalent to roughly one additional component item. This economic edge comes from a combination of better farming, kill participation, and objective control, giving Mordekaiser slightly faster item completions.
Utility
0.8Mordekaiser
1.1Sejuani
Sejuani provides 0.4 seconds more crowd control per minute than Mordekaiser, offering better gank setup potential and slightly more team fight utility. This CC advantage helps Sejuani coordinate with their jungler and control the pace of skirmishes.
Sustain
1,757Mordekaiser
1,752Sejuani
Mordekaiser and Sejuani have comparable sustain profiles, with only 5 HP/min separating their healing and damage mitigation. Neither champion can out-attrition the other in lane, so trades will be decided by burst potential and ability usage rather than sustain.

Best Mordekaiser Build Against Sejuani

Boots of Swiftness is the optimal boots choice against Sejuani, providing the mobility and stats Mordekaiser needs most in this matchup. The top-performing core items for Mordekaiser against Sejuani are Riftmaker, Rylai's Crystal Scepter and Spirit Visage. This combination gives Mordekaiser 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 Mordekaiser vs Sejuani matchup.

Early Game vs Late Game

Early Game
Mordekaiser
55.6%
+11.1% advantage
Mordekaiser early game win rateMordekaiser55.6%
Sejuani early game win rateSejuani44.4%
Late Game
Sejuani
60.0%
+20.0% advantage
Mordekaiser late game win rateMordekaiser40.0%
Sejuani late game win rateSejuani60.0%

Mordekaiser dominates the early game (first 15 minutes) with a commanding 55.6% win rate — a 11.1 percentage point lead over Sejuani. This lopsided early game means Mordekaiser can dictate the pace of the lane from level 1, controlling trades, wave state, and river priority.

Sejuani is far superior in the late game (25+ minutes), boasting a 60.0% win rate — 20.0 points above Mordekaiser. Extended games heavily favor Sejuani, whose kit and scaling make them a dominant force in team fights and objective control.

This matchup features a dramatic power shift: Mordekaiser must aggressively press their early advantage and close out the game before Sejuani reaches their scaling breakpoints. If Sejuani 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 Mordekaiser Runes Against Sejuani

Precision rune tree - Mordekaiser primary runes vs SejuaniPrecision
Conqueror - best Mordekaiser rune vs SejuaniTriumph - best Mordekaiser rune vs SejuaniLegend: Haste - best Mordekaiser rune vs SejuaniCoup de Grace - best Mordekaiser rune vs Sejuani
Domination rune tree - Mordekaiser secondary runes vs SejuaniDomination
Sudden Impact - best Mordekaiser rune vs SejuaniUltimate Hunter - best Mordekaiser rune vs Sejuani
100.0% WR

The Precision primary with Domination secondary combination helps Mordekaiser maximize their potential in this closely contested matchup, providing the right mix of offensive and defensive tools to edge out Sejuani.


Mordekaiser matchup data for League of Legends patch 26.7. The table below shows Mordekaiser'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 Mordekaiser build, runes, laning stats, and early vs late game analysis for that specific matchup.

Mordekaiser 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
52.91%3786.392212,34657.7%49.0%
54.29%2105.887811,42353.7%54.8%
42.16%2055.796412,05539.0%44.3%
55.10%1475.71,26712,92157.7%53.7%
50.00%1466.082611,76940.9%58.7%
53.38%1336.11,05412,16152.9%53.7%
49.15%1185.978412,87853.7%46.8%
52.63%1146.192612,21953.1%52.3%
59.65%1145.479611,73258.3%60.6%
61.95%1136.089012,18171.4%52.6%
50.00%1126.089911,72252.8%47.5%
53.64%1105.81,03612,07153.9%53.5%
37.38%1075.886111,80636.2%38.3%
56.07%1076.082012,15659.1%54.0%
50.49%1036.51,00612,15447.5%52.4%
52.94%1025.487611,52245.5%61.7%
41.58%1016.31,10812,28832.5%47.5%
41.84%985.690611,93946.8%37.3%
50.00%965.788211,56256.1%45.5%
50.00%866.21,13713,22760.7%44.8%
55.42%836.085512,29250.0%59.6%
55.56%815.91,17812,53164.3%50.9%
55.00%806.185012,32957.1%53.9%
37.18%786.381912,41244.8%32.6%
57.33%756.098411,53558.5%55.9%
60.00%756.280211,84961.1%59.0%
52.70%746.385712,25048.6%56.4%
46.58%735.477011,14255.6%37.8%
58.57%704.283812,53958.8%58.3%
63.24%685.670612,04363.3%63.2%
40.91%665.896312,82626.9%50.0%
46.88%646.782412,12350.0%44.7%
58.06%626.183812,14862.1%54.5%
57.63%595.789112,49348.0%64.7%
52.63%584.590112,52448.1%56.7%
46.55%586.178012,75054.2%41.2%
50.00%543.379312,58246.4%53.9%
45.28%535.886911,08045.5%45.2%
74.00%506.077111,42686.4%64.3%
56.00%506.487912,43464.0%48.0%
52.08%486.21,04712,17131.6%65.5%
46.67%455.385111,86345.5%47.8%
29.55%445.763110,85931.3%28.6%
43.59%391.683313,00435.0%52.6%
44.74%381.472712,76833.3%50.0%
47.37%383.176110,96547.6%47.1%
43.75%322.982112,96238.5%47.4%
61.29%315.590912,99064.3%58.8%
74.19%312.171913,54855.6%81.8%
55.17%296.277712,11157.1%53.3%
51.72%296.074111,65353.9%50.0%
42.31%264.78009,50945.5%40.0%
60.00%256.385412,54555.6%62.5%
52.00%255.695411,29036.4%64.3%
50.00%241.180412,70850.0%50.0%
39.13%234.575213,59822.2%50.0%
60.87%236.183410,72366.7%57.1%
68.18%226.076013,603100.0%56.3%
47.62%212.562611,53062.5%38.5%
55.00%205.987812,34050.0%58.3%
60.00%202.075113,18462.5%58.3%
57.89%195.773111,52442.9%66.7%
68.42%194.286413,62666.7%70.0%
58.82%173.685012,05644.4%75.0%
64.71%173.374912,48071.4%60.0%
70.59%174.61,09113,18687.5%55.6%
41.18%175.274411,08740.0%41.7%
81.25%162.667314,939100.0%75.0%
33.33%155.877812,39133.3%33.3%
50.00%143.796410,17155.6%40.0%
78.57%141.494215,35275.0%80.0%
28.57%145.578410,86125.0%33.3%
35.71%145.772110,67550.0%25.0%
57.14%143.282912,95766.7%50.0%
64.29%141.198113,93742.9%85.7%
76.92%136.289810,36187.5%60.0%
23.08%135.266011,1070.0%37.5%
38.46%135.375610,22037.5%40.0%
46.15%135.31,01212,14850.0%40.0%
58.33%125.780512,39040.0%71.4%
25.00%125.771111,31640.0%14.3%
75.00%122.188912,28283.3%66.7%
58.33%126.278712,22357.1%60.0%
58.33%121.771213,06640.0%71.4%
45.45%116.383911,95725.0%57.1%
50.00%114.85189,82033.3%57.1%
45.45%115.579212,71550.0%44.4%
60.00%111.170813,23885.7%0.0%
30.00%106.079114,4590.0%37.5%
30.00%105.161810,90640.0%20.0%
55.56%92.879813,95633.3%66.7%
55.56%93.091513,54250.0%60.0%
11.11%96.282611,52325.0%0.0%
44.44%94.880311,06740.0%50.0%
77.78%94.365810,99060.0%100.0%
66.67%95.26539,37150.0%100.0%
75.00%81.080610,18683.3%50.0%
37.50%85.989912,5210.0%50.0%
57.14%76.491112,61966.7%50.0%
57.14%72.271211,66850.0%66.7%
16.67%74.36167,5880.0%100.0%
28.57%75.778211,13150.0%20.0%
57.14%70.887010,941100.0%25.0%
42.86%72.494313,53533.3%50.0%
66.67%63.490513,33450.0%75.0%
50.00%63.380412,08133.3%66.7%
33.33%63.35868,03250.0%0.0%
33.33%63.56558,41550.0%0.0%
33.33%60.957511,772100.0%0.0%
33.33%63.075412,51250.0%25.0%
50.00%55.364811,904100.0%33.3%
60.00%54.169813,33750.0%66.7%
40.00%56.665210,85233.3%50.0%
40.00%55.279511,9770.0%66.7%
80.00%53.875712,452100.0%66.7%
40.00%56.095713,15766.7%0.0%
80.00%55.997213,094100.0%66.7%
60.00%55.51,20914,630100.0%33.3%
50.00%54.766611,1430.0%100.0%
20.00%54.054810,06725.0%0.0%
40.00%55.269112,80566.7%0.0%
20.00%50.470210,4920.0%100.0%
20.00%52.466312,45333.3%0.0%
60.00%55.970511,00366.7%50.0%

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Mordekaiser vs Sejuani - Frequently Asked Questions

How does Mordekaiser do against Sejuani in League of Legends?

Mordekaiser wins the Mordekaiser vs Sejuani matchup with a 50.0% win rate compared to Sejuani's 50.0%, a 0.0 percentage point difference. This data is based on 14 recent ranked games in patch 26.7.

How does Mordekaiser do against Sejuani in the early game?

In the early game, Mordekaiser has the advantage against Sejuani with a 55.6% win rate versus 44.4%. Mordekaiser players should look to press their lane advantage through aggressive trades and wave control during the first 15 minutes.

How does Mordekaiser do against Sejuani in the late game?

In the late game, Sejuani takes over the Mordekaiser vs Sejuani matchup with a 60.0% win rate compared to 40.0%. Sejuani scales better into team fights and objective contests after 25 minutes.

Who wins the Mordekaiser vs Sejuani matchup?

Mordekaiser wins the matchup against Sejuani with a 50.0% win rate in League of Legends patch 26.7. The 0.0 percentage point advantage means Mordekaiser is slightly favored in this lane matchup based on 14 games analyzed.

What is the best Mordekaiser build against Sejuani?

The best Mordekaiser build against Sejuani includes Riftmaker, Rylai's Crystal Scepter, Spirit Visage with Boots of Swiftness. Check the matchup breakdown above for the full item path and build order.

What are the best Mordekaiser runes against Sejuani?

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

Does Mordekaiser counter Sejuani?

Yes, Mordekaiser has a favorable matchup against Sejuani with a 50.0% win rate. Mordekaiser slightly edges out Sejuani in lane based on current patch 26.7 data.

How do I play Mordekaiser against Sejuani?

When playing Mordekaiser against Sejuani, 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.