Embark on an unforgettable multisport adventure at the Grafham Triathlon, presented by ATW, one of the UK's premier triathlon organizers. Whether you're a seasoned athlete or just starting out, this picturesque venue offers something for everyone. Grafham Water, known for its crystal-clear waters and serene surroundings, provides the perfect setting for both sprint and standard distance events. Competitors can choose between two challenging yet rewarding race formats: - Standard Distance Triathlon: Swim 1500m in Grafham's pristine reservoir, cycle a flat out-and-back course of 38km through charming villages, and complete a scenic run along the dam wall for a total of 10 kilometers.
- Sprint Distance Triathlon: Dive into the same refreshing waters but swim half as far (750m), pedal 17 kilometers on the flat route to Perry village, then finish with a swift 5 kilometer jog around Grafham Water. Both distances offer well-marked courses and supportive marshals ensuring that every participant receives encouragement throughout their journey. The run course takes you past iconic landmarks such as the dam wall before looping back towards the transition area where cheering crowds await your return. For those who prefer to focus solely on swimming and cycling, a standard distance Aquabike option is available. Additionally, teams can compete together in relay formats involving two or three members sharing different disciplines. On-site amenities include options for overnight camping at Lakeview Paddock as well as dormitory-style accommodation near Grafham Water Centre, making it convenient to arrive early and get plenty of rest before the big day. Participants will not only enjoy a picturesque setting but also receive custom-designed medals upon completion. Free event photos are provided, capturing memorable moments throughout your race experience. Join us in supporting Alzheimer's Research UK by raising funds through this meaningful challenge. Every step you take contributes to life-changing research and care for those affected by dementia. ATW offers flexible transfer policies should circumstances change; entries can be moved up until 48 hours before the event date, ensuring peace of mind regardless of unexpected situations. Connect with fellow athletes via ATW's social media platforms or join their active community on Facebook. Share your dreams, achievements, and seek advice from experienced competitors who are always ready to help newcomers feel welcome. With a history dating back to 2011, ATW continues to inspire thousands annually across various events nationwide. The Grafham Triathlon promises an exhilarating blend of competition, camaraderie, and scenic beauty that will leave you eager for more adventures in the world of multisports. Join us at Grafham Water this year and experience why it's become a favorite among triathletes looking to push their limits while enjoying some of Britain’s most stunning countryside.
Races Offered
Sprint Triathlon
Sep 26, 2026
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Distance —
0.8K Swim 20K Bike 5K Run
terrain
Type —
Multisports
timer
38 days remaining
sell
£79.00
Standard Aquabike
Sep 26, 2026
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Distance —
Standard Aquabike
terrain
Type —
Multisports
timer
38 days remaining
sell
£89.00
Standard Triathlon
Sep 26, 2026
straighten
Distance —
Standard Triathlon
terrain
Type —
Multisports
timer
38 days remaining
sell
£99.00
Standard Triathlon Relay
Sep 26, 2026
straighten
Distance —
Standard Triathlon Relay
terrain
Type —
Multisports
timer
38 days remaining
sell
£120.00
Weather History
These values represent the 3-year monthly averages for September in Cambs.
thermostatTemperature
11.8° / 20.2°
wb_sunnyFeels like
9.5° / 17.7°
light_mode
Avg sunshine hours
8h 30m
water_drop
Avg rainfall
2.7 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
14.7 km/h (Gentle breeze)
opacity
Sweat loss rate
Moderate
terrain
Course conditions
Firm and slightly soft
sunny
Max UV Index
Moderate (3.5)
humidity_mid
Humidity
77.1%
wb_twilight
Sunrise
06:35
nightlight
Sunset
19:13
About Cambs
Learn more about the host city, Cambs.
Cambridgeshire is a ceremonial county in the East of England and East Anglia. It is bordered by Lincolnshire to the north, Norfolk to the north-east, Suffolk to the east, Essex and Hertfordshire to the south, Northamptonshire to the west, and Bedfordshire to the south-west. The city of Peterborough is the largest settlement.