Ross Edgley (born 13 October 1985) is an extreme adventurer, ultra-marathon sea swimmer and author. He holds multiple world records, but is best known for completing the World's Longest Staged Sea Swim in 2018 when he became the first person in history to swim 1,780 miles (2,860 km) all the way around Great Britain in 157 days.
Voted Performance of the Year by the World Open Water Swimming Association, he documented his training, nutrition, theories and strategies and published them in his books titled The World's Fittest Book (2018), The Art of Resilience (2020), and Blueprint: Build a Bulletproof Body for Extreme Adventure in 365 Days (2021), all of which became No.1 Sunday Times Bestsellers and have been translated into several other languages.
Edgley was born into a sporting family in Grantham, Lincolnshire. His father was a tennis coach, his mother was a sprinter and his grandparents were marathon runners and in the military. Although playing many sports as a child (football, rugby, trail running and tennis), he specialised in swimming and water polo and represented his country internationally at junior level whilst studying at King's Grammar School in Grantham, England (a school famously attended by Sir Isaac Newton between 1655 and 1660).