3 races
Event overview
Take on the Grafham Triathlon, a spectacular open-water multisport event at one of the UK’s premier venues.
With both Sprint and Standard distances, this race welcomes everyone — from seasoned triathletes chasing speed to first-timers looking for a friendly, safe and scenic setting. Expect clear water, smooth roads and an unforgettable atmosphere.
The course showcases the best of Grafham Water: a clean reservoir swim, a fast and flat bike through picturesque villages, and a run across the iconic dam wall. Plus, there’s a Standard Aquabike for non-runners, a relay option for teams, and even camping and accommodation on-site for a stress-free race weekend.
Highlights
- Choice of Standard or Sprint triathlon distances
- Standard Aquabike and relay team options also available
- Beautiful open-water swim in Grafham Water reservoir
- Flat, scenic bike course through local countryside
- Fast, well-marked run route across the dam wall and trails
- Supportive marshals, custom finisher medals and free event photos
- Camping and dorm accommodation available nearby
- Perfect for both first-timers and experienced triathletes
Event photos
- Average fitness
- Event village
- Newcomers
- Teams
Wetsuit hire
Wetsuit hire for the day or season is now available. Find out more when you book.
- Paid parking
- Park
Event HQ
Grafham Water Visitor Centre
Grafham
Huntingdon
Cambridgeshire
PE28 0BH
UK
Parking is available at the venue - parking charges payable at on-site ticket machines.
Super smoothly run, well organised, super friendly and great location especially to take along friends or family - stay amazing! Becca
Well organised, athlete-focused and value for money. Kevin M
Was my first time taking part at Graffham water. Excellent run event. Everyone was friendly and helpful 🙂 would suggest to all. Suzanne A
A well organised event, with a really good vibe and atmosphere. Liam D
Beautifully organised event in a great location. Very friendly atmosphere. Bernard F
Great event, completed the Olympic distance. The PA announcer was the best I’ve heard at a race! Definitely on the list for next year. Highly recommend. Kev G
Reviews thanks to RaceCheck
Sustainability
- Recycling
- Sustainability policy
Races at event
- Sat 26 Sep 2026
- #1 of 3
08:00
Age 15 & over
£75
- 750 m lake swimming
- 17 km road cycling + 384 ft ascent
- 5 km road running + 33 ft ascent
- Sat 26 Sep 2026
- #2 of 3
08:15
Age 17 & over
£95-£116
- 1500 m lake swimming
- 38 km road cycling + 748 ft ascent
- 10 km road running
- Sat 26 Sep 2026
- #3 of 3
08:15
Age 17 & over
£85
- 1500 m lake swimming
- 38 km road cycling + 748 ft ascent