Find triathlons near me in UK in September 2025 - search by date or place, display on a map or use the advanced search to find your perfect race.
Click an event for full event details, location, route, sustainability, what's included and how to enter.
Taking THE ROC into the Lake District, this is an opportunity to test your resolve and focus in one of the most inspiring locations in Europe. Face up to the mountain.
A renowned, challenging and unique event where the toughness of the course is only matched by the stunning scenery of the Lake District National Park. Not just another race but highly demanding.
Get involved in this Grafham Triathlon, brought to you by the largest triathlon organiser in the UK!
Situated off the World Heritage Site Jurassic Coast, this race is a first-timer favourite, featuring sandy beaches, spectacular coastline and the stunning Dorset countryside.
Triathlons at Dawlish Warren, a safe and supported environment for sea swimming, with a range of triathlon distances to offer a great challenge in a scenic location.
The Olympic venue, Eton Dorney, offers pan-flat, traffic-free roads and a beautiful clear lake for all levels of triathletes and swimmers to enjoy in an exclusive setting.
The Big East and Maldon Triathlon is brought to you by the largest triathlon organiser in the UK! A great experience featuring a tidal river swim.
The Salcombe Brewery Sprint Triathlon takes place from North Sands and consists of a 700m swim, 19km cycle and a 3km trail run to finish.