Relay triathlons in UK
Find relay triathlons in UK in 2025/2026 - 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
South East
South West
East of England
East Midlands
West Midlands
Yorkshire
North West
Scotland
Wales
Everywhere
Event listings
Select an event for photos, video, route, location, reviews, entry fees and how to enter.
- Sat 4 Apr 2026
- £28-£51
Torbay Triathlon Relay
Join the action at Torbay Velopark in your choice of two thrilling team triathlon relays – fast racing, smooth tarmac, and unbeatable camaraderie in a fun, traffic-free setting for all abilities.
- Trees not tees
- Recycling
- Beginner-friendly
- Urban
- Park
- Sustainability policy
- Plastic-free event
- Age 13 & over
- Relay triathlon 2
- Sun 26 Apr 2026
- £49.50-£64.50
Woking Spring Triathlon & Junior Aquathlon | Sprint Triathlon
A Sprint Triathlon combining a smooth pool swim, fast road cycling and scenic run routes, ideal for stepping up with racing and crowd support.
- Enter online
- Flat
- Age 15 & over
- 400 m pool swimming
- 20.6 km road cycling
- 5 km trail running
- Sun 26 Apr 2026
- £55
Tridents Grantham Triathlon
A classic sprint triathlon with a fresh new energy to bring the triathlon scene back to Lincolnshire! A pool swim with a thrilling and scenic course plus a commemorative medal.
- Beginner-friendly
- Enter online
- Event village
- Rural
- Sustainability policy
- Age 17 & over
- 400 m pool swimming
- 24 km road cycling
- 5 km road running
- Sat 2 May 2026
- £58-£120
Dorney Triathlon | May
Take on this multi-activity event as an individual or as a relay, and enjoy the opportunity to race around the unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.
- Recycling
- Beginner-friendly
- Event village
- Park
- Sustainability policy
- Age 15 & over
- Super sprint triathlon
- Sprint triathlon
- Olympic triathlon
- Sprint aquabike
- Standard aquabike
- 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 9 May 2026
- £250-£270
THE ROC WALES
The totally unique ROC format, from Abersoch Bay to the top of Wales’ highest mountain and back. Swim, Bike, Mountain, Bike, Run; THE ROC WALES is triathlon - tough and redefined.
- Recycling
- Plastic bottle free
- Entertainment
- Music
- Chip timing
- Enter online
- Hilly
- Mountainous
- Event village
- Event expo
- Coast
- Mountains
- Sustainability policy
- Plastic-free event
- Age 18 & over
- 1.5 km sea swimming
- 100 km road cycling
- 13 km multi terrain running
- 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 16 May 2026
- £42.50-£107.50
Keswick Mountain Festival | Sprint Triathlon
One of the most thrilling triathlons in the country on a super-exciting route with challenging ascents, descents and open roads, narrow in parts. Includes Full Weekend Festival Ticket in the price!
- Beginner-friendly
- Chip timing
- Enter online
- Hilly
- Event village
- Age 15 & over
- 400 m lake swimming
- 18 km road cycling
- 5 km trail running
- Sun 17 May 2026
- £68-£135
Roadford Lake Triathlon
Triathlon and swim events at Roadford Lake, offering a range of distances to suit all ability levels in a safe environment, with camping options to enjoy the area after your event.
- Families
- Trees not tees
- Recycling
- Beginner-friendly
- Event village
- Rural
- Sustainability policy
- Plastic-free event
- Age 15 & over
- Sprint triathlon
- Olympic triathlon
- Half Ironman
- 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
- 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
- Sat 6 Jun 2026
- £58-£120
Dorney Triathlon | June
Take on this multi-activity event as an individual or as a relay, and enjoy the opportunity to race around the unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.
- Recycling
- Beginner-friendly
- Event village
- Sustainability policy
- Age 15 & over
- Super sprint triathlon
- Sprint triathlon
- Olympic triathlon
- Sprint aquabike
- Standard aquabike
- 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
- 21 km multi terrain running
- Sun 7 Jun 2026
- £70-£90
Dartmouth Triathlon | Sprint
Swim in the clear waters of Blackpool Sands, then take a scenic coastal bike route featuring Devon's flattest road, then run by a stream. Plus chance to camp on the beach!
- Chip timing
- Enter online
- Age 15 & over
- 750 m sea swimming
- 20 km road cycling
- 5 km road running
- Sun 14 Jun 2026
- £80-£195
Weymouth WMD Triathlon
Whichever distance you choose, this triathlon will not fail to impress. With stunning views of Weymouth nature reserve and a true test of stamina, you'll be beaming with pride at the finish line.
- Beginner-friendly
- Event village
- Coast
- Age 18 & over
- Half Ironman
- Olympic triathlon
- Sprint triathlon
- Sat 20 - Sun 21 Jun 2026
- £28-£245
Cholmondeley Castle Triathlon and Multisport Festival
Get active in the beautiful grounds and surrounding area of stunning Cheshire in the discipline of your choice! Bring your friends and celebrate completing your challenge in the festival village.
- Families
- Beginner-friendly
- Entertainment
- Music
- Event village
- Park
- Rural
- Age 9 & over
- Kids triathlon 5
- Novice triathlon
- Super sprint triathlon
- Sprint triathlon 2
- Olympic triathlon
- + 14 more races
- 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 28 Jun 2026
- £74-£94
ATW Sprint Triathlon | Mallory Park
Mallory Park Triathlon Extravaganza: A Traffic-Free Triumph! A thrilling and safe circuit nestled in picturesque surroundings, boasting its own self-enclosed swim lake for a Sprint Tri.
- Enter online
- Flat
- Traffic free
- Age 15 & over
- 750 m lake swimming
- 20 km road cycling
- 5 km road running
- 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
- Sun 5 Jul 2026
- £64-£70
English Riviera Triathlon | Sprint
A fast, exciting, spectator-friendly, draft-legal Sprint Triathlon in Torquay! Swim from the sheltered Torre Abbey Sands beach, ride a fast and flattish closed-road circuit and run by the sea.
- Chip timing
- Enter online
- Undulating
- Age 15 & over
- 750 m sea swimming
- 20 km road cycling
- 5 km road running
- Sat 11 - Sun 12 Jul 2026
- £20-£100
Ripon Triathlon Festival
A family-friendly event in partnership with the Brownlee Foundation, for triathletes of all skill levels including a Sprint, Standard, Middle distance tri, Swims, Aquabike, Relay and Juniors.
- Families
- Beginner-friendly
- Dogs allowed at venue
- Entertainment
- Event village
- Urban
- Rural
- Free venue entry
- Age 8 & over
- Sprint triathlon
- Sprint aquabike
- Lake swim 4
- Standard aquabike
- Olympic triathlon
- + 3 more races
- Sun 12 Jul 2026
- £58-£120
Dorney Triathlon | July
Take on this multi-activity event as an individual or as a relay, and enjoy the opportunity to race around the unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.
- Recycling
- Beginner-friendly
- Event village
- Sustainability policy
- Public transport links
- Age 15 & over
- Super sprint triathlon
- Sprint triathlon
- Olympic triathlon
- Sprint aquabike
- Standard aquabike
- Sun 12 Jul 2026
- £95-£115
ATW Bristol Standard Triathlon
Swim, bike, and run through an iconic city backdrop with a flat, fast course and incredible atmosphere — one of the UK's most-popular 'closed-road' Standard triathlons.
- Chip timing
- Enter online
- Traffic free
- Age 17 & over
- 1500 m lake swimming
- 42 km road cycling
- 10 km road running
- Sat 18 - Sun 19 Jul 2026
- £28-£245
Belvoir Castle Triathlon and Multisport Festival
A jewel in the castle crown! Get active in the beautiful grounds and surrounding area of stunning Leicestershire in the discipline of your choice! Celebrate in the festival village afterwards.
- Families
- Beginner-friendly
- Event village
- Rural
- Age 9 & over
- Kids triathlon 4
- Super sprint triathlon
- Sprint triathlon 2
- Olympic triathlon
- Half Ironman
- + 14 more races