ATW Grafman Middle Distance Triathlon

Experience the magic of Grafham Water at one of Britain’s premier middle-distance triathlons. Nestled amidst Cambridgeshire's serene countryside, this iconic race draws athletes from across the nation for its breathtaking venue and unforgettable course.
Since 2014, when it was voted National Event of the Year, ATW Grafman has hosted both the Triathlon England Middle Distance Championships and the British Middle Distance Championships, solidifying its reputation as a must-do event in triathlete circles. Whether you're stepping up to this distance for the first time or aiming for another personal best, you'll be welcomed into a supportive community that celebrates every finisher.
Choose your challenge: take on the full middle-distance triathlon, tackle the aquabike if swimming and cycling are your strengths, or share the experience with friends in relay format. Each option offers an incredible atmosphere, stunning venue, and unforgettable finish line.
The race kicks off with a 1.9km open water swim at Grafham Water's crystal-clear waters, followed by a scenic 90km bike ride through quiet country lanes and rolling hills of Cambridgeshire. The course is strictly non-drafting to ensure fair competition. Finally, runners tackle a picturesque 21km run along the lakeside with stunning views of the iconic Valve Tower.
Event organizers make race morning as smooth as possible for participants, opening registration and transition from early in the morning so you can focus on your performance. For those looking to turn their racing day into an event weekend, camping options are available at Lakeview Paddock just minutes away from Grafham Village.
The atmosphere is electric throughout the course thanks to friendly marshals who provide encouragement every step of the way and well-stocked hydration stations along the route. Every finisher receives a bespoke medal celebrating this incredible achievement alongside post-race snacks and goodies to help you celebrate your success.
Away from the racing, there's plenty for spectators too with an on-site café, children’s playground, and beautiful surroundings making Grafman a perfect day out for families and friends alike.
Join us at ATW Grafman and discover why so many athletes return year after year. With its welcoming community spirit, spectacular venue, scenic course, and incredible support system, this race offers one of the UK's most memorable middle-distance experiences.
For those looking to make a difference beyond their personal achievements, consider raising funds for Alzheimer’s Research UK during your participation at Grafman. Every stride you take can contribute towards changing lives for the better.
Whether it’s your first time or another unforgettable day at Grafham Water, ATW welcomes all participants into its community with open arms and endless support.
Come join us this year to experience why so many athletes make Grafman a part of their racing calendar every season!