Relay triathlons in East of England
Find relay triathlons in East of England in 2025/2026 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.
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- Sun 3 May 2026
- £55-£117
ATW St Neots Triathlon | Race 1
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
- Age 15 & over
- Super sprint triathlon
- Sprint triathlon
- Olympic triathlon
- Standard aquabike
- Sun 24 May 2026
- £63-£135
ATW Box End Triathlon
A choice of multi-sports events including triathlon, relay triathlon and aquabike at a stunning watersports venue with immaculate water quality, scenic routes, a custom designed medal and much more.
- Newcomers
- Event village
- Park
- Age 15 & over
- Sprint triathlon
- Sprint aquabike
- Olympic triathlon
- Standard aquabike
- Half Ironman
- + 1 more race
- Sun 7 Jun 2026
- £155-£175
ATW Grafman Middle Distance Triathlon
Take on a superb middle distance triathlon at the fantastic Grafham Water. Suitable for all abilites, with a challenging, but achievable course, and custom medal at the finish line.
- Chip timing
- Enter online
- Undulating
- Age 18 & over
- 1900 m lake swimming
- 90 km road cycling + 1680 ft ascent
- 21 km multi terrain running + 0 ft ascent
- Sun 21 Jun 2026
- £62-£115
ATW Stewartby Lake Triathlon & Aquabike
Dive into the ATW Stewartby Lake Triathlon and Aquabike – a flat, fast and friendly race offering stunning lake views, smooth roads, and surefire PB potential.
- Recycling
- Newcomers
- Plastic bottle free
- Event village
- Park
- Sustainability policy
- Age 15 & over
- Sprint triathlon
- Olympic triathlon
- Sprint aquabike
- Standard aquabike
- Sun 21 Jun 2026
- £75-£110
Southend Triathlon
Take on an exciting coastal triathlon in Southend, featuring a sea swim, fast seafront cycle, and scenic run with fantastic crowd support all the way.
- Newcomers
- Event village
- Coast
- Age 18 & over
- Sprint triathlon
- Olympic triathlon
- Relay triathlon
- Standard aquabike
- 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
- £94-£115
ATW St Neots Standard Triathlon | Race 2
Stunning riverside venue! Swim in the beautiful River Ouse, cycle through scenic villages and run around Riverside Park in a Standard Triathlon.
- Enter online
- Age 17 & over
- 1500 m river swimming
- 45 km road cycling + 712 ft ascent
- 10 km road running + 0 ft ascent
- Sun 20 Sep 2026
- £94-£115
ATW St Neots Standard Triathlon | Race 3
Stunning riverside venue! Swim in the beautiful River Ouse, cycle through scenic villages and run around Riverside Park in a Standard Triathlon.
- Enter online
- Age 17 & over
- 1500 m river swimming
- 45 km road cycling + 712 ft ascent
- 10 km road running + 0 ft ascent