Fastest marathon in a suit
Who
Matthew Whitaker
What
2:44:29 hour(s):minute(s):second(s)
Where
Australia (Sydney)
When

The fastest marathon dressed in a full suit is 2 hr 44 min 29 sec and was achieved by Matthew Whitaker (Australia) at the 2017 Blackmores Sydney Running Festival in Sydney, New South Wales, Australia, on 17 September 2017.

Matthew was one of two people on the day attempting "fastest marathon in a suit" and beat his competitor by 6 minutes 29 seconds. The two are hoping to collaborate on a joint costume Guinness World Records Title for the 2018 Blackmores Marathon in Sydney.

Six Guinness World Records title attempts occurred during the race, with two new titles being established. The other successful record attempt was "fastest marathon in a kung fu uniform."