The AJ Bell London Triathlon, is the world's largest triathlon with more than 10,000 entrants annually.
The event attracts everyone, from elite athletes to complete novices, either as individuals or as part of a team, and raises over £2million for charity annually.
Saturday 4 August: 10.30am-7.00pm
Sunday 5 August: 6.00am-3.30pm
Custom House DLR