Mundo aims to survive Olaf's early aggression by farming safely with (Q) and using his passive to block Olaf's engage.
Focus on scaling through health items and outlasting Olaf in extended fights rather than early lane pressure.
Trading pattern
Trade only when (Q) lands repeatedly to keep Olaf at bay and use your passive to negate his crowd control.
Avoid extended trades before (R) is available; once (R) is up, use it proactively to sustain through Olaf's damage.
Punish Olaf if he misses (Q) by stepping forward to farm or poke, as his chase and damage drop significantly.
Danger windows
Be cautious when your passive is down, as Olaf can engage more reliably with his (Q) slow and true damage (E).
Avoid extended trades before level 6 and health item spikes, as Olaf's early all-in potential is high.
Watch for (R) activation; he becomes immune to crowd control and can commit to fights you cannot easily escape.
Early game
Use (Q) to farm safely and avoid extended trades before level 6 when Olaf's all-in threat is highest.
Respect (Q) slow and avoid getting caught without your passive ready to block his engage.
Avoid missing (Q) to prevent giving Olaf windows to force trades or zone you from farm.
Power spikes
At level 6, activate (R) before Olaf's burst to heal and chase or disengage effectively.
Your first health item spike greatly increases durability; use this to pressure side waves and force Olaf to struggle through your health pool.
Respect Olaf's level 6 (R) for crowd control immunity and extended fight potential; avoid fighting him when his (R) is active unless you have (R) yourself.
Win conditions
Survive early lane pressure by farming safely with (Q) and using your passive to block Olaf's engage tools.
Reach your health scaling and item spikes to become too durable for Olaf's all-in attempts.
Use (R) strategically to sustain through fights and absorb damage in side lanes or teamfights, outlasting Olaf's burst and forcing him to disengage.
Tip: For Dr. Mundo vs Olaf, read overview, trading pattern, and danger windows first for a fast Top lane check.