UK Triathlon Events Found
View all ↓Triathlons
Triathlons combine swimming, cycling and running into one of the most popular all-round physical challenges. There are a huge variety of types of triathlons to choose from in terms of distances, cycle and run terrain options, and whether the swim is in a pool, in open water (eg lake) or even the sea.
Triathlon distances:
Super Sprint Triathlons: 400m swim; 10km bike; 2.5km run.
Sprint Triathlons: 750m swim; 20km bike; 5km run.
Olympic Triathlons (aka Standard Triathlons): 1500m swim; 40km bike; 10km run.
Half Ironman Triathlons: 1.9km swim; 90km bike; 21.1km run. (This distance is also known as a “70.3” which refers to the total race distance in miles.)
Ironman™ Triathlons: 3.86km (2.4 mile) swim; 180.25km (112 mile) bike; 42.2km (26.2 mile) run. As Ironman™ is a trademark, these are also known as ‘Iron distance’ events.
Find a Race lists more than 450 triathlons every year. So whether you’re new to the sport and looking for your first Super Sprint triathlon or a hardened triathlete looking for a Double Ironman distance event, check out our comprehensive full 2026 - 2027 triathlon list below, or if you know which distance you want to search for use the links above.
Triathlons
Chester Triathlon
Chester, Cheshire West and ChesterPlymouth Triathlon
Mount Edgcumbe, CremylRace The Sun Jurassic Coast Off-Road
Swanage, DorsetOn Sale
Votwo Dorney Lake Triathlon
Windsor, Berkshire2026 - Ribby Hall Triathlon
Preston, Lancashire2026 Oulton Park Spring Duathlon - BTF Championship and Qualifier.
Tarporley, Cheshire West and ChesterTorbay Triathlon Relay
Torbay VeloparkEast Leake Triathlon
Loughborough, LeicestershireTorbay Triathlon Spring
Torbay Velopark, Torbay Leisure Centre Penwill Way, Paignton TQ4 5JROsprey Sprint Triathlon
The Osprey Leisure Centre, Portland, DT5 1BD2026 - St Annes Triathlon
Lytham St Annes, LancashireStratford Triathlon 2026
Stratford-upon-Avon, WarwickshireRace The Sun South Downs
Seaford, East SussexOn Sale