top of page
Odyssey Triathlon Series Tab.webp

Grafman middle distance triathlon

The Grafman Middle Distance Triathlon is one of the UK’s most scenic and well-organised triathlon events, attracting athletes of all levels to the stunning setting of Grafham Water. Now part of the four-race Odyssey Triathlon Series, it is known for its fast, approachable course and friendly atmosphere. The event features an enjoyable swim, scenic bike route, and energising run that make it a favourite among both first-time middle-distance competitors and seasoned triathletes. With excellent on-site facilities, smooth logistics, and a supportive race environment, the Grafman Middle Distance Triathlon offers an unforgettable race experience in the heart of Cambridgeshire.

A swimmer in a wetsuit and green swim cap with goggles, gesturing while talking to others in a group. The person is standing in a wetsuit branded with 'Zone 3,' preparing for a swim event. The background shows other participants in similar gear.
Grafham website Background.webp
A triathlete in a black wetsuit and red swim cap emerges from the water, lifting a hand to their goggles as water splashes around them. Other swimmers in wetsuits and red caps follow behind in the lake, with race buoys visible in the background.

Middle distance triathlon

A simple black-and-white pixel-style calendar icon, showing two rings at the top and a grid of date squares below.
June 07, 2026
A simple white pixel-style icon of a swimmer, showing a person’s arm extended above the water with a curved line representing movement through the water.
- 1900m
A white pixel-style icon of a cyclist, showing a person in a forward-leaning position riding a bicycle with two large circular wheels.
- 90km
A white pixel-style icon of a running person, shown in mid-stride with one arm bent forward and the other back, on a black background.
- 21km

The Grafman Middle Distance Triathlon combines a refreshing open-water swim, a fast and scenic bike course, and a rewarding run around Grafham Water—perfect for athletes seeking a well-balanced and iconic UK middle-distance challenge.

Middle distance Aquabike

June 07, 2026
A simple black-and-white pixel-style calendar icon, showing two rings at the top and a grid of date squares below.
A simple white pixel-style icon of a swimmer, showing a person’s arm extended above the water with a curved line representing movement through the water.
- 1900m
A white pixel-style icon of a cyclist, showing a person in a forward-leaning position riding a bicycle with two large circular wheels.
- 90km

The Grafman Middle Distance Aquabike offers a streamlined swim-bike format, ideal for athletes who enjoy combining a strong swim with a dedicated, high-performance bike leg. It’s a popular choice for those who appreciate the thrill of racing without the final run segment, allowing them to focus on maximising their speed and endurance on the bike.

A smiling cyclist wearing a helmet, sunglasses, and a gray-and-neon cycling outfit rides a road bike on a curved rural road. He lifts one arm in a celebratory gesture while maintaining balance with his other hand on the handlebars. Trees and grass line the roadside in the background.
A smiling athlete wearing sunglasses, a triathlon suit, and an orange hydration vest raises a fist in celebration while running outdoors near a grassy field and water. Blurred race structures and spectators are visible in the background.

Middle distance Relay

A simple black-and-white pixel-style calendar icon, showing two rings at the top and a grid of date squares below.
June 07, 2026
A simple white pixel-style icon of a swimmer, showing a person’s arm extended above the water with a curved line representing movement through the water.
- 1900m
A white pixel-style icon of a cyclist, showing a person in a forward-leaning position riding a bicycle with two large circular wheels.
- 90km
A white pixel-style icon of a running person, shown in mid-stride with one arm bent forward and the other back, on a black background.
- 21km

The Grafman Middle Distance Relay lets teams of two or three tackle the swim, bike, and run together. It’s a fun, inclusive way to experience the Grafman atmosphere while sharing the challenge across teammates.

The white logo for Alzheimer’s Research UK, featuring the organisation’s name in bold uppercase text, with a boxed slogan reading “For A Cure” on the right.
The white Skechers Performance logo, featuring a stylized, streaked “S” symbol on the left and the words “SKECHERS PERFORMANCE” in bold uppercase text on the right.
The white “LOVE, CORN” logo in bold, textured lettering, with a heart shape forming the center of the letter “O.”
The white “revive active” logo in lowercase lettering, with a set of three rounded square shapes forming a stepped motif above the word “active.”
The white “ZONE3” logo in a sleek, italicized font, followed by a stylized triangular swoosh symbol on the right.
The white “YellowJersey” logo with the tagline “Insurance for cycling” displayed underneath in smaller text.
The white logo for Alzheimer’s Research UK, featuring the organisation’s name in bold uppercase text, with a boxed slogan reading “For A Cure” on the right.
The white Skechers Performance logo, featuring a stylized, streaked “S” symbol on the left and the words “SKECHERS PERFORMANCE” in bold uppercase text on the right.
The white “LOVE, CORN” logo in bold, textured lettering, with a heart shape forming the center of the letter “O.”
The white “revive active” logo in lowercase lettering, with a set of three rounded square shapes forming a stepped motif above the word “active.”
The white “ZONE3” logo in a sleek, italicized font, followed by a stylized triangular swoosh symbol on the right.
The white “YellowJersey” logo with the tagline “Insurance for cycling” displayed underneath in smaller text.
A black-and-white logo featuring the letters “ATW” in bold block style, enclosed within a circular border.
A simple black-and-white pixel-style icon of an envelope, representing an email message.
Contact us
A simple white phone handset icon on a black background, symbolizing a telephone or call function.
01582 321559
A simple white map pin icon on a black background, representing a location or place marker.
ActiveTrainingWorld Ltd, South Silo, Thrales End Business Centre, Thrales End Lane, Harpenden, Hertfordshire, AL5 3NS
A white shield icon split vertically, with a circular checkmark symbol overlapping the lower right side, representing security or privacy protection.
About
Privicy Policy
A white icon of a rolled scroll with horizontal lines indicating text, symbolizing rules, regulations, or a document.
Regulations
bottom of page