Mordekaiser vs Olaf — Top Lane Matchup Guide

How to win lane as Mordekaiser against Olaf · 47.91% win rate (2,200 Emerald+ games, lolalytics, sampled July 2026) · Matchup data reviewed on patch 26.15

Verdict: Olaf is slightly favoured — Mordekaiser wins 47.91% of 2,200 games, and Olaf pressures 5 of the 7 stage windows in the plan below. Play it patient and win your windows.

At a glance

His true damage out-duels the realm — deny axes, build armor, anti-heal.

Track: Olaf's R — Ragnarok (100–80s cooldown). He’s relentless in it. Bait it before R.

Do

  • Walk over his axe to deny it
  • Build armor + anti-heal
  • R him when his Q is down

Don't

  • Get axe-slowed
  • R into his R rampage
  • Stack pure HP

Runes & build vs Olaf

Start
Doran's Shield + Health Potion
First back
Haunting Guise / Giant's Belt (≈900-1300g)
First item
Liandry's Torment (burn carries his extended trades)
Then
Riftmaker (omnivamp turns the Realm 1v1 unloseable)
Boots
Plated Steelcaps (Swiftness into kite comps)
Runes
Conqueror (Precision): Triumph, Legend: Haste, Last Stand · Resolve: Bone Plating, Overgrowth · Shards: Adaptive Force, Adaptive Force, Health

Favour timeline — the windows in Mordekaiser's game plan

Read from Mordekaiser's seat: which stage windows this plan plays for against Olaf.

StageFavouredWhy
Level 1OlafOlaf out-trades you at level 1 — Undertow shreds armour and refunds its 9s cooldown on pickup, while you have only Q and no Darkness Rise aura yet.
Level 2MordekaiserYour Q+W spike arrives: Obliterate single-target poke banks into an Indestructible shield you recast as a heal, letting you trade back evenly for one window.
Level 3OlafReckless Swing's true damage out-paces your W sustain at 4-5, and Ragnarok's disable immunity shrugs off the Death's Grasp pull you'd peel with.
Levels 4-5OlafEven with Darkness Rise online Reckless Swing chunks through your shield in true damage, and Undertow's slow lets him kite your aura.
Level 6MordekaiserRealm of Death isolates him 1v1 with no jungle peel — you stack Darkness Rise and out-DPS him, your guaranteed flip even in a losing lane.
First itemOlafHis first bruiser item plus lifesteal lets his true-damage all-in out-grind your W heal once Ragnarok is back up.
Two+ itemsOlafExtended fights favour him — Reckless Swing's true damage ignores your shield, and you cannot peel or escape an Olaf who is CC-immune in R.

How to beat Olaf as Mordekaiser: the early game

"Olaf owns the opening levels. Undertow shreds your armour and slows, and picking the axe back up refunds its 9s cooldown, so he chips you for free while you have only Q and no Darkness Rise aura online yet. Your window is level 2-3: poke with Obliterate, bank the damage into your Indestructible shield, and recast it to heal off the trade. Do not greed an all-in — if he pops Ragnarok mid-trade your E pull does nothing, and Reckless Swing's true damage carves through your shield."

Hardest and easiest matchups for Mordekaiser in top lane

Pooled Emerald+ win rates from Mordekaiser's side, sampled July 2026.

Hardest

Easiest

Read the rest of this matchup

The full Mordekaiser vs Olaf report continues with the mid-game plan, the late-game and teamfight plan, every power spike to play around, and the win conditions for both sides — plus cooldown tracking and the live enemy-jungle tracker inside the app.

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Common questions

Who wins Mordekaiser vs Olaf in top lane?

Olaf, slightly — Mordekaiser wins 47.91% of 2,200 games; winnable with the right plan.

Is Mordekaiser vs Olaf a skill matchup?

Mostly — Olaf has a small statistical edge (52.09% win rate), but execution decides this lane far more than the pick does.

Does Mordekaiser counter Olaf?

No — if anything Olaf has the slight edge (Mordekaiser wins 47.91%), though it stays close.

What runes does Mordekaiser take vs Olaf?

Mordekaiser takes Conqueror on the Precision tree with Triumph, Legend: Haste and Last Stand, and Resolve secondary (Bone Plating and Overgrowth) vs Olaf.

What should Mordekaiser build vs Olaf?

Start Doran's Shield + Health Potion and back for Haunting Guise / Giant's Belt (≈900-1300g). Build Liandry's Torment (burn carries his extended trades) first, then Riftmaker (omnivamp turns the Realm 1v1 unloseable), with Plated Steelcaps (Swiftness into kite comps).

Related guides

Playing the other side? Olaf vs Mordekaiser guide →
All Mordekaiser top lane matchups →

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