London Duathlon is one of the UK's favourite races, and the world's largest meeting of duathletes. There are plenty of distances to choose from - the Half Duathlon, Full Duathlon, Ultra Duathlon and Relay. What's your perfect fit?

Half Duathlon: 5km Run – 22km Bike – 5km Run

Deadline – 4th August
Registration Fee - £60
Fundraising Target - £250