Get involved Challenge events London Triathlon - Team Relay Attracting over 11,000 participants and 30,000 spectators this iconic triathlon has become a must-do event in the sporting calendar. You complete the triathlon in a team of three - one person swims, one person cycles and oneperson runs - with a variety of distances, routes and wave categories to choose from. Perfect for corporate teams looking to take on a challenge. Interested in taking on this challenge? Fill in an application form and get in touch today. Event date: Saturday 4 August Registration fee: £40 Minimum sponsorship: £550 per group We'll give all of our triathletes a branded cycling vest, fundraising support, tailored social media shout outs and lots of cheering on the day!