- Adrian Bennett
- 7519.67 kilometre(s)
- Singapore (Singapore)
The longest Triathlon is 7519.67 km and was achieved by Adrian Bennett (UK), in Singapore, Singapore, on 8 May 2021.
Adrian attempted this record for raising awareness for his family's charity, Practical Action, to better himself as an endurance athlete, and to be a good role model for his two young children. He said he is definitely going to attempt another Guinness World Records title in the future.