How to win the jungle race as Karthus against Olaf · Matchup data reviewed on patch 26.15
Read from Karthus's seat: the race windows this plan plays for against Olaf.
| Stage | Read | Why |
|---|---|---|
| Level 1 Clear | Danger — Avoid Olaf | Hard no-contest for Karthus at level 1: Undertow (Q) spam clears fast and chunks anyone who contests their buff, and Undertow slows and Reckless Swing true damage win every extended exchange. Keep a wall or camp between you and the axe line and never fight inside his slow. Path opposite, ward your entrances, and let the clock carry you to your own spike. |
| Level 2 Skirmish | Danger — Avoid Olaf | Undertow slows and Reckless Swing true damage win every extended exchange. Vicious Strikes (W) sustain means they leave every camp healthier than they do on top of that, so level 2 is a straight stat check Karthus loses — keep a wall or camp between you and the axe line and never fight inside his slow, and give the river vision-line respect. |
| Level 3 Route | Danger — Avoid Olaf | Olaf out-classes you at the opening scuttle — full Q-W-E with Reckless Swing true damage means nobody on the roster out-brawls this, and Undertow slows and Reckless Swing true damage win every extended exchange. Give up the level-3 river fight, full-clear away from them, and trade map pressure instead of health. |
| Levels 4-5 Macro | Danger — Avoid Olaf | Do not be seen by Olaf at levels 4-5 — you lose every exchange. Full-clear away from them, ward your entrances, and trade map pressure, not HP. |
| Level 6 Breakpoint | Respect Olaf's R | Ragnarok makes him immune to every form of crowd control while he runs you down — Karthus loses the straight post-6 duel. Kite out the ult's duration before committing — he has no gap-closer once it ends, and shift your pressure to the side of the map Ragnarok is not on. |
| First Item Spike | Liandry's Spike | Liandry's plus your farm lead makes Defile standoffs unwinnable for Olaf and your Requiem chunks brutal. You now solo Dragons early with W-E pit control. Force the enemy to fight inside your aura at every objective — or concede them on the clock. Olaf's first item is a large jump — the true damage plus lifesteal turns extended fights into ones he simply does not lose. |
| 2+ Items Scaling | Karthus Favoured — Wins Late | Olaf falls off relative to you — from two items on you win the raw stat check, even though he is a crowd-control-immune diver, so he has to be kited rather than stopped. Drag the game long and force the 1v1s. |
Start blue-side regardless of map side preference arguments — your mana economy is your clear speed. Track Olaf's entry only to know which half of your farm to bank first; you race nobody, you out-pace everybody. Olaf clears very fast with Undertow resets and leaves camps healthier than he entered them, so he is always available to fight.
Ranked by the race windows in Karthus's plans — the jungle race carries no win-rate sample.
The full Karthus vs Olaf report continues with scuttle & dragon rules, invade windows and safety boundaries, the top-side objective fight, macro rotations and the win condition — plus the live enemy-jungle tracker that shows their start, clear and gank timers in game.
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Olaf pressures 5 of the 7 windows in this race — survive the early game and scale into your windows.
Not exactly — Olaf pressures 5 of the 7 windows, so Karthus is playing catch-up and has to lean on the map.
Playing the other side? Olaf vs Karthus guide →
All Karthus jungle matchups →
More Karthus jungle matchups: vs Nidalee · vs Nocturne · vs Nunu & Willump · vs Qiyana · vs Rammus · vs Rek'Sai