ATW Grafman Middle Distance Triathlon

JUN
7
2026
Take on the ATW Grafman middle distance triathlon at Grafham Water with a scenic 1.9 km swim, 90 km bike and 21 km run. Enjoy supportive marshals, on site facilities, camping and great spectator access.
Sun 7 Jun 2026
Grafman Middle Distance T...

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Event overview

ATW Grafman Middle Distance Triathlon is a middle distance swim-bike-run event held at Grafham Water Visitor Centre, Marlow Park, Grafham, Huntingdon, Cambs. The next scheduled race date is 07/06/2026. The event has previously hosted national championships and was voted National Event of the Year in 2014. An overall cut off time for the event is 9 hrs 30 mins.

Race format and practical information

Distances for the main event:

  • 1.9K swim
  • 90K bike
  • 21K run

The bike leg is run under draft illegal rules. An Aquabike option is available where the race finishes at the entrance back into transition after the bike leg. Relay entries are also offered. The course uses quiet country lanes for cycling and the run passes views of Valve Tower. Water and nutrition stations, supportive marshals, a well-marked course, and finish-line snacks are provided. A custom medal is awarded.

On-site facilities and services include parking with payment machines, an on-site cafe and playground for spectators, wetsuit hire options, camping through Lakeview Paddock, and dormitory-style accommodation at Grafham Water for the night before the event. Registration and transition opening times will be advised in the final event details. Visit the organization's website for the most recent information.

Grafman Middle Distance Triathlon (1.9k Swim, 90k Bike, 21k Run)

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