Welcome to the third annual ATW Odyssey Triathlon, an epic journey of self-discovery through Swim-Bike-Run in the beautiful Cambridgeshire countryside.

New for 2025: Half Distance Triathlon Added!

To celebrate the success of this incredible event, we've introduced a half distance option for those who aren't too sure about completing a long distance triathlon.

. Choose between:

• Full Odyssey:

  • 3.8km swim in the meandering River Ouse
  • 180km cycle through scenic Cambridgeshire
  • 42.2km marathon around the picturesque town of St Neots
     

• Half Odyssey:

  • 1.9km swim
  • 90km cycle
  • 21.1km run, all around stunning St Neots

Why Participate in the Odyssey Triathlon?

The Odyssey is more than just a triathlon - it's a transformative experience. Overcome physical and mental challenges of a long distance triathlon and bask in the achievement of completing your personal Odyssey. This event is open to everyone, regardless of ability, with plenty of activities to keep the whole family entertained.

Spectator Highlights

The Odyssey triathlon course offers unparalleled spectator-athlete interaction, with multiple cheering points, including the vibrant 'Tent of Enlightenment' that runners pass on each lap. Food, drinks, music, and seating are available to ensure an enjoyable experience for supporters.

Event Details

• Cutoff Times:
  • Full Odyssey: 16 hours
  • Half Odyssey: 14 hours
• Bike Leg: Draft illegal
• Wetsuit Hire: Zone3 wetsuits available

Police Middle-Distance Champs - we are proud to be hosting the Police Middle Distance Champs at the Odyssey Half Triathlon. 

Odyssey Triathlon Race Day Logistics

Race Pack Collection: At the event venue the day before or the morning of the race

Bike Racking: On race day, 90 minutes before the start

Final Details: Posted one week before the event

Family Fun

ATW ensures a memorable day for all. Free children’s activities will be provided at Regatta Meadow, the event HQ. Enjoy the festival atmosphere with food, drinks, and music in the 'Tent of Enlightenment.'

Accommodation

Basic camping is available on Friday and Saturday nights (limited facilities).

Finisher Rewards

All finishers will receive an exclusive Odyssey medal, t-shirt, and goodies!

Ready to embark on your Odyssey? Register now and experience the adventure of a lifetime!

Special Offer: Save £50 when you book the Grafman Triathlon alongside the Odyssey Triathlon!

Event Organiser

ATW was established in 2011 by James Shipley. We have now become a national events company in the UK, specialising in Running, Triathlon, Duathlon, Aquathon, Cycling, Swimming and all permutation of swim-bike run events. With over 40,000 entries a year, ATW has become a firm favourite amongst people who are determined to Dream, Believe and Achieve.