Blenheim Palace Triathlon on Channel 4 this Saturday 16 June 06:35

and Ch4+1 07:35, plus catch up on All 4

Taking place against the stunning backdrop of Blenheim Palace estate, the birthplace of Sir Winston Churchill, this iconic triathlon is the traditional season opener and the second-biggest event in the UK, with thousands of enthusiasts, celebrities and world-class elites taking on the scenic and historic course.