- Sat 8 Aug 2026
10:30
Age 18 & over
£55-£90
- 12 hrs trail running + 0 ft ascent
Event overview
The ATW Odyssey12 is back for another successful year!
Along the way, you will overcome both physical and psychological challenges that you have never previously experienced, and once completed, you will stand tall in the knowledge that you have completed on your own, or with a band of special team mates, your very own Odyssey.
The Odyssey course is the ultimate in spectator-athlete experiences with multiple opportunities to cheer on the athletes, including the ‘Tent of Enlightenment’ which you will run past on each of the flat 7km laps.
There's plenty of space for team tents, so bring your cheer squad along and make a day of it.
Highlights
- Fantastic atmosphere guaranteed
- Very popular venue
- Well-marked course
- Supportive marshals
- Camping Friday night
- Family entertainment
- Custom designed medal
- Finish line snacks and goodies
Odyssey Triathlon Weekend
Make a weekend of it and soak up a full weekend of multisports!
ATW St Neots Triathlon | Race 2
The iconic ATW Odyssey 12, the legendary Odyssey Triathlon, and the St Neots Triathlon (Race 2) will all take place side by side as part of the brand new ATW First to Full Triathlon Festival.
It’s more than just racing — the whole day will be filled with energy, excitement and celebration. Athletes will push their limits, cheered on by family, friends and spectators, while a buzzing festival atmosphere brings everything to life with live entertainment, tasty food and activities for all ages.
The ATW First to Full Triathlon Festival isn’t just about crossing the finish line — it’s about being part of something bigger. Whether you’re racing, supporting, or soaking up the atmosphere, this is a day not to be missed.
Brought to you by the largest triathlon organiser in the UK!
Event photos
- All fitness levels
- Event village
- Newcomers
- Spectators
- Teams
How it works
This event is open to everyone, regardless of ability and there will be plenty of activities at the venue to keep the whole family entertained while you race. You may enter as a Solo competitor, a Pair or as a Team of between 3 and 6. You can declare the names of your Pair or Team anytime prior to race day. The entry page will ask for the details of the lead runner.
This multi-terrain run will begin at 10:30am, culminating with the finish at 22:30, for those who are still going. The winner will be deemed the one who has covered the most 7km laps in that period. In the event of a tie, the indiviual, pair or team who completed the last complete lap first will be deemed the winner.
All finishers will receive a unique Odyssey medal.
There will be awards for the furthest distance covered by Solo Male and Solo Female, Male Pair, Female Pair, Mixed Pair and Team (mixed).
There will also be a special award to the individual male and female clocking the fastest lap.
Event village
It's obviously a long day for competitors but it's also a long day for your supporters! ATW wants everyone to enjoy their Odyssey experience whether they are competing or supporting.
To keep young families entertained throughout the day there will be free kids activities provided throughout the day at the HQ at Regatta Meadow.
Food, drink, music and seating will also be available in the 'Tent of Enlightenment' which is the cheer station the runners will pass through on each lap of the run. The event village is also a short walk from the town centre with its numerous cafes and shops.
- Camping
- Music
- Park
- Toilets
Event HQ
Riverside park, Regatta Meadow
Crosshall Road
Eaton Ford
St. Neots
Cambridgeshire
PE19 7AB
UK
The venue has very easy access to the local town, which is a two-minute walk away.
Camping
£15/night.
There will be basic camping available on Friday night with limited facilities.
Paid parking
£3 for cars, £5 for campervans.
- Cut off time
- Distance markers
- First aid
- Flat
- Food stations
- Marshals
- Multiple laps
- Sleeping facilities
- Toilets
- Traffic free
- Water stations
- Way markers
- GPX available
- Bring your own cup
- Recycling
- Sustainability policy
Here are the ways this event cares for the environment:
Summary
- Recycling bins
- Recycling gets separated from general waste
- Finish line water bottles made from recycled material
- Refill taps are provided so participants can bring their own bottle and fill up during the event
- The choice of paper cups at water stations
- Signage including course marking attached with reusable garden wire instead of plastic cable ties
- 'Dynamic bib assignment’ removes the need for envelopes, sticker labels and excess waste
- Bike racking is provided to promote cycling to the events
- Medal
Included
- All finishers will receive a unique Odyssey medal
Prizes
- Awards for the furthest distance covered by Solo Male and Solo Female, Male Pair, Female Pair, Mixed Pair and Team (mixed)
- Special award to the individual male and female clocking the fastest lap
- Age 18 & over
- Entries open
- Enter online
Solo runners must be 20+ years old.
Entry fees
Early bird entry fee
£55.00
Pairs entry fee
£70.00
Team entry fee
£90.00
Brilliant event that will only continue to get better. Good location and the swim, bike and run courses were all suitable for first timers and the more experienced triathletes. Loved the event village, great atmosphere and super friendly and helpful marshals. Will definitely return. Craig D
Brilliantly organised event. Marshals we’re fab and the run course was lovely and scenic but most importantly flat 😊 The party tent also a great idea and really gave me thay much needed boost when running through it each lap. Danielle H
I thoroughly enjoyed the 12 hour Odyssey event. The camaraderie was wonderful- everyone, including the triathletes, were very friendly and supportive, as were the general public along the course. The setting was lovely. The marshals were great -especially the one at the 'disco' water station! Valerie H
Amazing event, brilliantly organised and a great event village with electric atmosphere, organisers went above and beyond to make it a memorable day for both spectators and competitors. Benjamin B
Fantastically organised and very supportive staff and crew, excellent event One minor suggestion can we have a couple of toilets in the camping area please. Dan P
Second time of taking part in the trail run. Love this event. Great course, chilled event and as challenging as you want it to be. Well done to all the organisers and everyone who helped make the event such a special day. Will be back next year. I think this event will eventually sell out as people hear how good it is. Jane M
Second year doing the Trail Run with Spider Runners. Absolutely loved it …great atmosphere and loved camping ..extended the weekend into one big celebration Spider Runners will be back next year. Mike B
Reviews thanks to RaceCheck