- Who
- GILLES DUFOSSE
- What
- 3:38:13 hour(s):minute(s):second(s)
- Where
- United Kingdom (LONDON)
- When
The fastest marathon dressed as a monarch (male) is 3 hr 38 min 13 sec, and was achieved by Gilles Duffosse (France), at the TCS London Marathon, in London, UK, on 23 April 2023.
Gilles is a keen marathon runner and has attempted multiple Guinness World Records titles.