How to win lane as Olaf against Mordekaiser · 52.09% win rate (2,200 Emerald+ games, lolalytics, sampled July 2026) · Matchup data reviewed on patch 26.15
Build MR — true-damage him and out-brawl his realm.
Track: Mordekaiser's R — Realm of Death (140–100s cooldown). His 1v1 realm. Out-brawl it with E + W.
Read from Olaf's seat: which stage windows this plan plays for against Mordekaiser.
| Stage | Favoured | Why |
|---|---|---|
| Level 1 | Olaf | Morde is a feeble level-1 and your Q-slow-into-auto plus health-scaling passive win first contact outright. |
| Level 2 | Mordekaiser | His R is down but at 2 he can land E-pull into an isolated Q-slam plus W shield to flip a sloppy trade — respect the level-2 spike. |
| Level 3 | Olaf | Your Q-stick into guaranteed E true damage chunks him before his W shield matters — your hardest punish window. |
| Levels 4-5 | Olaf | Axe-reset perma-slows deny his isolated Q while W omnivamp out-sustains his Q-and-W chip in short trades. |
| Level 6 | Mordekaiser | Realm of Death drags you 1v1 and steals your stats — Ragnarok clears disables, not banishes, so 6 is his swing. |
| First item | Olaf | Your Black Cleaver / bruiser spike with axe slows and W sustain out-grinds his shield-heal — force every all-in here. |
| Two+ items | Olaf | On his R cooldown your flat true damage and relentless slows still beat him 1v1 — close it before full build. |
Morde is one of the weakest level-1s and so is the trade math for him here — at Level 1 land your Q to slow him, walk up an auto, and your passive attack speed ramps as you take his return. Levels 2-3 are your peak: throw Q to stick him, then E for a guaranteed true-damage chunk he simply can't shield through yet, and pick the axe back up to refund the cooldown so you can perma-slow him out of his own Q-slam range. Dodge his E pull — if he yanks you and lands an isolated Q, that empowered slam plus W shield flips the trade.
Pooled Emerald+ win rates from Olaf's side, sampled July 2026.
The full Olaf vs Mordekaiser 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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Olaf, slightly — a 52.09% win rate edge over 2,200 games; execution can flip it.
Mostly — Olaf has a small statistical edge (52.09% win rate), but execution decides this lane far more than the pick does.
Not a hard counter — Olaf has a slight edge (52.09% win rate), and play quality decides the rest.
Olaf takes Conqueror on the Precision tree with Triumph, Legend: Alacrity and Last Stand, and Resolve secondary (Bone Plating and Unflinching) vs Mordekaiser.
Start Doran's Blade + Health Potion and back for Executioner's Calling (≈800g) — cuts his healing. Build Sundered Sky (sustain spike) first, then Sterak's Gage, with Mercury's Treads.
Playing the other side? Mordekaiser vs Olaf guide →
All Olaf top lane matchups →
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