Fastest 400 metres hurdles (male)
- Who
- Alison dos Santos
- What
- 45.80 second(s)
- Where
- Switzerland (Zurich)
- When
- 27 August 2026
The fastest 400 m hurdles (male) is 45.80 seconds and was achieved by Alison dos Santos (Brazil) in Zurich, Switzerland, on 27 August 2026.
Alison dos Santos produced an unforgettable performance at the Weltklasse meeting in Zurich, smashing Karsten Warholm’s world record of 45.94 seconds for the men's 400 m hurdles and leaving Warholm a distant second.