Sean is the first person in history to achieve the Endurance Grand Slam. He achieved all four types of world records possible: a worlds first, longest, fastest and most of.
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First to swim the length of Britain
Year: 2013
Duration: 135 days Distance: 900 miles Swimming the length of Britain was a challenge that many thought impossible. I disagreed and spent 4.5 months at sea proving it could be done. I grew my beard to shield myself against jellyfish. True story. |
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World's longest triathlon
Year: 2016
Duration: 85 days Distance: 4200 miles On the 1st April 2016 I set of on a 4200 mile triathlon around the coast of Great Britain. It was the toughest 85 days of my life as I attempted the entire feat completely self supported. |
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Fastest to cycle across Europe
Year: 2018
Duration: 24 days, 18 hours, 39 minutes Distance: 3980 miles After a failed first attempt I eventually succeeded in cycling the 3890 mile route from Portugal to Russia in 24 days, 18 hours and 39 minutes. |
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Most full iron triathlons in a row
Year: 2023
Duration: 105 days Distance: 14,763 miles Swim 2.4 miles, cycle 112 miles, run 26.2 miles, then repeat, for 105 days solid. No rest days. By far the hardest thing I have ever done. |
