The unusual costumes setting World Records today at the London Marathon

The pro-athletes were out in force today with their eyes firmly set on setting a World Record.

Other runners however had a slightly different idea of how to make it into the history books.

Swarms of people in fancy dress were taking on the challenge with everyone from Sonic the Hedgehog to leprechauns getting involved.

Here are just some of the records set today:

• Dressed as Spiderman, Paul Martelletti earned the crown for the fastest marathon dressed as a superhero, completing the race in 2:30:12, and also securing the title of fastest ever Guinness World Record achieved at the event
• The fastest marathon in a nurse's uniform was run in 2:46:48 by Neil Casey
• The fastest marathon dressed as a lifeguard was 2:55:54 and was achieved by Terry Midgley
• Lee Ryan achieved the fastest marathon carrying a 20lb pack, clocking up a time of 2:56:39
• Mystical creatures also crossed the finish line, with Adam Jones achieving the world record for the fastest marathon dressed as a leprechaun, completing it in a time of 2:59:30
• The fastest marathon dressed as a boxer was run in 3:08:00 and was achieved by Joe Elliott
• Subhashis Basu earned the record for fastest marathon run in a cricket uniform, clocking a time of 3:20:46
• Neil Light earned his record by crossing the line in 3:09:28 to become the fastest runner dressed as a video game character - Sonic the Hedgehog