Sam Laidlow (FRA) and Fenella Langridge (GBR) claimed the first-ever Challenge London titles as over 5,000 triathletes reportedly took part in ‘the world’s biggest city centre triathlon’ on August 6, 2023.
2023 marked the first edition of the new-look event, formerly known as the London Triathlon, and the first time the event has hosted a pro field over the middle distance, with a strong elite field on show in London.










Craig Dews, CEO of event organiser LimeLight Sports Group, said “We are delighted to have brought world-class triathlon back to the capital, and in spectacular style.
“Challenge London is proud to not only take in some of the greatest sights in London, but it offers a platform for all abilities to enjoy the sport, make new memories, change lifestyles and experience the joys of mass participation events.
“Triathlon is more than just a sport, for many it’s a lifestyle. Fundamentally the three disciplines of swim, bike, run are a powerful combination that often enhance physical and mental wellbeing. Being a part of sporting events like this gives an overwhelming sense of togetherness and achievement, whatever your personal goal.”







