Ross Edgley (born 13 October 1985) is a British extreme athlete, sports scientist and writer, adventurer and fitness trainer. A leading expert and writer on mental fortitude, physical resilience and work capacity, in 2018 he published "The World's Fittest Book", and became the first person in history to swim all the way around Great Britain, completing it in 157 days.
Edgley was born into a sporting family in Grantham, Lincolnshire. His father was a tennis coach, his mother was a sprinter and his grand parents were marathon runners and in the military. He graduated from Loughborough University's School of Sport and Exercise Science. He was listed in the World's 50 Fittest Men of 2016 by Askmen.com.
Commencing at midnight on 22 January 2016, Edgley began a marathon (26.2 miles (42.2 km)) around the Silverstone circuit in Northamptonshire, pulling a 1,400 kilograms (3,100 lb) Mini Countryman car. The event was dubbed "The World's Strongest Marathon". As part of his training for the event he went on a special 6,000 calorie plus daily diet and had already done a 16 miles (26 km) pull with the Mini during training. He completed the marathon endeavour in 19 hours, 36 minutes and 43 seconds. The marathon raised money for the Teenage Cancer Trust, Children With Cancer, Sports Aid and United Through Sport.