Triathlons in UK in August 2026
Find triathlons in UK in August 2026 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.
Filter by date
Filter by place
MapEvent listings
Select an event for photos, video, route, location, reviews, entry fees and how to enter.
- Sat 8 Aug 2026
- £130-£270
- Early bird
ATW Odyssey Triathlon
Complete your own Odyssey on a journey of self-discovery in the Cambridgeshire countryside featuring a swim in the River Ouse, a scenic ride and a run around the beautiful town of St Neots.
Early bird on now
- Families
- Recycling
- Entertainment
- Music
- Event village
- Park
- Rural
- Sustainability policy
- Age 19 & over
- Ironman
- Half Ironman
- Sat 8 Aug 2026
- £63-£115
ATW St Neots Triathlon | Race 2
Stunning riverside venue! Swim in the beautiful River Ouse, cycle through scenic villages and run around Riverside Park in a triathlon or aquabike event of your choice.
- Newcomers
- Event village
- Park
- Sustainability policy
- Age 15 & over
- Sprint triathlon
- Olympic triathlon
- Standard aquabike
- Sprint aquabike
- Sat 8 Aug 2026
- £56-£275
ATW First To Full Triathlon Festival
Be part of a UK first. This isn’t just another triathlon—it’s the first event of its kind where you decide the distance, from sprint to full, and race your way.
- Newcomers
- Event village
- Park
- Age 15 & over
- Sprint triathlon
- Olympic triathlon
- Half Ironman
- Ironman
- Sprint aquabike
- + 4 more races
- Sat 1 Aug 2026
ATW Mallory Park Triathlon - Incorporating the 2027 European Age Group Championship Sprint Triathlon Qualifier
- Super sprint triathlon
- Sprint triathlon
- Sun 30 Aug 2026
Wimbleball Triathlon
- Olympic triathlon
- Half Ironman
- Ironman
- Standard aquabike
- Standard aquathlon