Relay triathlons in UK in May 2025
Find relay triathlons near me in UK in May 2025 - search by date or place, display on a map or use the advanced search to find your perfect race.
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Click an event for full event details, location, route, sustainability, what's included and how to enter.
- Sat 10 May
- £240-£260
- Sat 10 May
- £240-£260
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 + 3330 ft ascent
- Sat 17 May
- £42.50-£102.50
- Sat 17 May
- £42.50-£102.50
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!
- Newcomers
- Chip timing
- Enter online
- Hilly
- Event village
- Age 15 & over
- 400 m lake swimming
- 18 km road cycling
- 5 km trail running
- Sun 18 May
- £78-£99
- Sun 18 May
- £78-£99
ATW Box End Sprint Triathlon
Stunning watersports venue with immaculate water quality, scenic run route, custom designed medal plus team relay option.
- Enter online
- Age 15 & over
- 750 m lake swimming
- 26 km road cycling
- 5 km road running
- Sun 18 May
- £99-£120
- Sun 18 May
- £99-£120
ATW Box End Standard Triathlon
Stunning watersports venue with immaculate water quality, scenic run route, custom designed medal plus team relay option.
- Enter online
- Age 17 & over
- 1500 m lake swimming
- 40 km road cycling
- 10 km road running
- Sun 18 May
- £120-£140
- Sun 18 May
- £120-£140
ATW Box End Centurion 100km Triathlon
Challenge yourself to tackle a 100km Centurion this year, a distance made popular by the PTO race series. Ideal if you're training for a 70.3 Half-Iron or taking a step up from Standard Distance Tri.
- Enter online
- Undulating
- Age 18 & over
- 2250 m lake swimming
- 80 km road cycling
- 20 km trail running
- Sun 18 May
- £73-£84
- Sun 18 May
- £73-£84
Roadford Lake Triathlon | Standard
This triathlon returns for another successful year! It’s a superb swimming venue with quiet rolling roads for the bike course and a cracking run too. Plus there's lakeside camping available too.
- Chip timing
- Enter online
- Undulating
- Age 17 & over
- 1.5 km lake swimming
- 40 km road cycling
- 10 km road running
- Sun 25 May
- £78-£99
- Sun 25 May
- £78-£99
Dorney Sprint Triathlon
Take on this multi-activity event and take the opportunity to race around this unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.
- Chip timing
- Enter online
- Flat
- PB
- Age 15 & over
- 750 m lake swimming
- 20 km road cycling
- 5 km road running
- Sun 25 May
- £99-£120
- Sun 25 May
- £99-£120
Dorney Standard Triathlon
Take on this multi-activity event and take the opportunity to race around this unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.
- Chip timing
- Enter online
- Flat
- PB
- Age 17 & over
- 1500 m lake swimming
- 40 km road cycling
- 10 km road running
- Sat 3 May
XTERRA Weston Park | World Cup Full Distance Triathlon
- 1.5 km lake swimming
- 32 km mountain biking
- 10 km trail running
- Sun 4 May
XTERRA Weston Park | Full Distance Triathlon
- 1.5 km lake swimming
- 28 km mountain biking
- 10 km trail running
- Sun 4 May
BUCS Triathlon: Sprint & Mixed Relay Championships | Mixed Team Relay
- 150 m pool swimming
- 6.5 km road cycling
- 1.7 km road running
- Sun 11 May
Cheshire Triathlon | Sprint and Relay
- 500 m pool swimming
- 21 km road cycling
- 5 km trail running
- Sun 11 May
Crystal Palace Triathlon | Adult Team Relay Distance
- 300 m pool swimming
- 20 km road cycling
- 5 km road running
- Sun 11 May
Cheshire Triathlon | CRUK Wave and Relay
- 200 m pool swimming
- 21 km road cycling
- 2.5 km trail running
- Sat 17 May
Outlaw Sprint Nottingham
- 750 m lake swimming
- 19 km road cycling
- 5 km trail running
- Sun 18 May
Outlaw Half Nottingham
- 1.2 miles lake swimming
- 56 miles road cycling
- 13.1 miles road running
- Sun 18 May
Southport Triathlon, Duathlon & Aquathlon | Triathlon | Sprint Distance
- 750 m lake swimming
- 20 km road cycling
- 5 km road running
- Sun 18 May
Southport Triathlon, Duathlon & Aquathlon | Triathlon | Standard Distance
- 1500 m lake swimming
- 40 km road cycling
- 10 km road running