One very brave Sydney lawyer has broken a world record by running a marathon in a three-piece suit.
Matthew Whitaker, 25, entered the Sydney Running Festival on Sunday with the aim of taking home a grander prize than just a fast time - which for him was an incredible two hours, 44 minutes and 29 seconds and a Guinness World Record.
In a tremendous feat the North Bondi local donned a woollen suit and tie one size larger than his actual size and set about running 42 kilometres in it.
'The first half was fine, but the last 15-20 kilometres were really, really horrible,' Mr Whitaker told the Sydney Morning Herald.
'It got really heavy and restrictive and slowed me down a fair bit.'
The lawyer had spent time training in the suit, running around Sydney's iconic Centennial Parklands and Bondi beach, but nothing could have prepared him for the grueling stint in sunny Spring weather.
While the rules stated he needed to wear a full suit with his top button done up at all times to break the record, Mr Whitaker was allowed to wear trainers.
In pictures from the event, which sees the Harbour Bridge shut down for the morning, the 25-year-old can be seen sweating straight through his pant legs.
Mr Whitaker admitted after the race that even dry cleaning it may not revive the standard work attire.
Incredibly he wasn't the only person trying to break that world record on the day - beating out Michael Tozer for the top spot.
The pair posed for a photo together despite only being acquaintances before the race began.
The previous record holder was Joe Elliott with a time of 2:58:03 - beaten by Mr Whitaker by more than 14 minutes.
In total the Sydney Running Festival raised over $1.5 million for charities this year.