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.
- Beginner-friendly
- Event village
- Park
- Age 15 & over
- Super sprint triathlon
- Sprint triathlon
- Olympic triathlon
- Standard aquabike
- Sat 16 May 2026
- £78-£178
ATW Big East & Maldon Triathlon
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.
- Beginner-friendly
- Event village
- Park
- Age 15 & over
- Sprint triathlon
- Olympic triathlon
- Standard aquabike
- Half Ironman
- Middle aquabike
- Sat 23 May 2026
- £125
ATW Box End Mixed Team Relay
Unleash your team’s speed and strategy in an exhilarating mixed relay, racing through swim–bike–run laps at Box End’s stunning, spectator-friendly lakeside venue.
- Beginner-friendly
- Entertainment
- Enter online
- Event village
- Age 16 & over
- 350 m lake swimming
- 7.7 km road cycling + 102 ft ascent
- 1 km road running
- Sun 24 May 2026
- £65-£137
ATW Box End Triathlon
Experience a choice of multi-sport events — triathlon, relay triathlon and aquabike — at a stunning watersports venue with pristine water, scenic routes, a custom medal and more.
- Beginner-friendly
- Event village
- Park
- Age 15 & over
- Sprint triathlon
- Sprint aquabike
- Olympic triathlon
- Standard aquabike
- Half Ironman
- + 1 more race
- Sun 7 Jun 2026
- £160-£180
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
- Sun 21 Jun 2026
- £64-£117
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
- Beginner-friendly
- 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.
- Beginner-friendly
- Event village
- Coast
- Age 18 & over
- Sprint triathlon
- Olympic triathlon
- Relay triathlon
- Standard aquabike
- Sun 5 Jul 2026
- £65-£160
ATW Odyssey At Box End Triathlon
Get ready for one of the UK’s most exciting triathlon events of the year! Dive into crystal-clear lake waters at Box End, then ride a smooth, rolling bike course and follow scenic on-site run paths.
- Beginner-friendly
- Event village
- Park
- Age 15 & over
- Sprint triathlon
- Olympic triathlon
- Half Ironman
- Sprint aquabike
- Standard aquabike
- + 1 more race
- Sat 8 Aug 2026
- £145-£285
- 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
- £56-£285
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.
- Beginner-friendly
- Entertainment
- Event village
- Park
- Age 15 & over
- Sprint triathlon
- Olympic triathlon
- Half Ironman
- Ironman
- Sprint aquabike
- + 4 more races
- Sat 8 Aug 2026
- £96-£117
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.
- Chip timing
- Enter online
- Age 17 & over
- 1500 m river swimming
- 45 km road cycling + 712 ft ascent
- 10 km road running
- Sun 16 Aug 2026
- £76-£97
ATW Oundle Sprint Distance Triathlon
The UK's largest triathlon organiser brings you the Oundle Sprint Triathlon! It doesn’t matter if you are an experienced triathlete or this is your very first attempt at swim-bike-run.
- Chip timing
- Enter online
- Age 15 & over
- 600 m pool swimming
- 25 km road cycling + 561 ft ascent
- 5 km trail running + 30 ft ascent
- Sun 20 Sep 2026
- £96-£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.
- Chip timing
- Enter online
- Age 17 & over
- 1500 m river swimming
- 45 km road cycling + 712 ft ascent
- 10 km road running
- Sat 26 Sep 2026
- £97-£118
ATW Grafham Triathlon | Standard Triathlon
Athletes of all levels are guaranteed to enjoy The Standard Triathlon at this fantastic venue that has been used for award-winning triathlons, national championships and GB qualifier races!
- Chip timing
- Enter online
- Age 17 & over
- 1500 m lake swimming
- 38 km road cycling + 748 ft ascent
- 10 km road running