Triathlons in UK in May 2026
Find triathlons near me in UK in May 2026 - search by date or place, display on a map or use the advanced search to find your perfect race.
Search by month
Search by place
MapEvents near me
Click an event for full event details, location, route, sustainability, what's included and how to enter.
- Mon 4 May 2026
- £58-£63
- Mon 4 May 2026
- £58-£63
Tavistock Triathlon | Standard
Tavistock Triathlon is for all ages and abilities using the amazing Olympic legacy 50m pool at Mount Kelly with quiet rolling roads for the bike and the disused railway line for the run. What a venue!
- Enter online
- Undulating
- Age 16 & over
- 800 m pool swimming
- 36 km road cycling + 1726 ft ascent
- 10 km road running + 652 ft ascent
- Mon 4 May 2026
- £46
- Mon 4 May 2026
- £46
Tavistock Triathlon | Sprint
Tavistock Triathlon is for all ages and abilities using the amazing Olympic legacy 50m pool at Mount Kelly with quiet rolling roads for the bike and the disused railway line for the run. What a venue!
- Enter online
- Age 15 & over
- 400 m pool swimming
- 18 km road cycling + 863 ft ascent
- 5 km road running + 419 ft ascent
- Mon 4 May 2026
- £36
- Mon 4 May 2026
- £36
Tavistock Triathlon | Supersprint
Try a triathlon - perfect for first-timers. Pool swim, cycle on quiet rolling roads then run on an old railway line.
- Enter online
- Age 15 & over
- 300 m pool swimming
- 10 km road cycling
- 2.5 km road running + 184 ft ascent
- Mon 4 May 2026
- £27
- Mon 4 May 2026
- £27
Tavistock Triathlon | TriStar 3
TriStar 3 for children aged 13-14. Pool swim, bike and also run are all mainly on grass in the grounds of Mount Kelly.
- Enter online
- Age 13-14
- 300 m pool swimming
- 6 km gravel riding
- 2.6 km multi terrain running
- Mon 4 May 2026
- £24
- Mon 4 May 2026
- £24
Tavistock Triathlon | TriStar 2
TriStar 2 for children aged 11-12. Pool swim, bike and also run are all mainly on grass in the grounds of Mount Kelly.
- Enter online
- Age 11-12
- 200 m pool swimming
- 3.6 km gravel riding
- 1.95 km multi terrain running
- Mon 4 May 2026
- £22
- Mon 4 May 2026
- £22
Tavistock Triathlon | TriStar 1
TriStar 1 for children age 9-10. Pool swim, bike and also run are all mainly on grass in the grounds of Mount Kelly.
- Enter online
- Age 9-10
- 150 m pool swimming
- 2.4 km gravel riding
- 1.3 km multi terrain running
- Mon 4 May 2026
- £21
- Mon 4 May 2026
- £21
Tavistock Triathlon | Tristar Start
TriStar Start Kids age 8. Pool swim, bike and also run are all mainly on grass in the grounds of Mount Kelly.
- Enter online
- Age 8-8
- 50 m pool swimming
- 1 km gravel riding
- 450 m multi terrain running
- Mon 4 May 2026
- £20
- Mon 4 May 2026
- £20
Tavistock Triathlon | Mini Tri
New! For kids age 5+. Pool swim, bike and also run are all mainly on grass in the grounds of Mount Kelly.
- Enter online
- Age 5-7
- 25 m pool swimming
- 1 km gravel riding
- 450 m multi terrain running
- Sat 9 May 2026
- £195-£225
- Sat 9 May 2026
- £195-£225
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 16 May 2026
- £42.50-£102.50
- Sat 16 May 2026
- £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
- Hilly
- Event village
- Age 15 & over
- 400 m lake swimming
- 18 km road cycling
- 5 km trail running
- Sat 16 - Sun 17 May 2026
- £160-£165
- Sat 16 - Sun 17 May 2026
- £160-£165
Keswick Mountain Festival | Keswick Conqueror
A lake swim, a trail run and a road ride over the course of the festival weekend. Conquer a triathlon challenge over two days. Includes Full Weekend Festival Ticket in the price!
- Newcomers
- Music
- Chip timing
- Mountainous
- Event village
- Age 18 & over
- 3.6 km lake swimming
- 100 km road cycling + 1625 m ascent
- 25 km trail running + 866 m ascent
- Sun 17 May 2026
- £135
- Sun 17 May 2026
- £135
Roadford Lake Triathlon | Middle Distance
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 18 & over
- 1.9 m lake swimming
- 93 km road cycling + 8490 ft ascent
- 20 km road running + 3288 ft ascent
- Sun 17 May 2026
- £82-£84
- Sun 17 May 2026
- £82-£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
- 1500 m lake swimming
- 46 km road cycling + 4245 ft ascent
- 10 km road running + 1644 ft ascent
- Sun 17 May 2026
- £68
- Sun 17 May 2026
- £68
Roadford Lake Triathlon | Sprint
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 15 & over
- 750 m lake swimming
- 20 km road cycling + 1778 ft ascent
- 5 km road running + 822 ft ascent
- Sun 24 May 2026
- £73-£99
- Sun 24 May 2026
- £73-£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 + 558 ft ascent
- 5 km road running + 85 ft ascent
- Sun 24 May 2026
- £94-£115
- Sun 24 May 2026
- £94-£115
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 + 837 ft ascent
- 10 km road running + 170 ft ascent
- Sun 24 May 2026
- £120-£135
- Sun 24 May 2026
- £120-£135
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
- 81 km road cycling + 1674 ft ascent
- 20 km trail running + 340 ft ascent