- Felix Mayerhöfer
- 2:42:59 hour(s):minute(s):second(s)
- Germany (Hamburg)
The fastest marathon dressed in a full suit is 2 hr 42 min and 59 sec, achieved by Felix Mayerhöfer (Germany) in Hamburg, Germany, on 23 April 2017.
Felix has always wanted to attempt a Guinness World Record since running his first marathon in 2009.