- Sun 24 May 2026
07:00
Age 15 & over on 31 Dec 2026
£75-£99
- 750 m lake swimming
- 26 km road cycling + 558 ft ascent
- 5 km road running + 85 ft ascent
Event overview
Brought to you by the UK’s largest multisport organiser, this event at Box End Lake delivers an unforgettable race experience in stunning surroundings. The venue’s pristine open water and scenic on-site run routes make it the perfect setting for a day of swim, bike, and run action.
Open to all abilities, you can choose from a range of distances to suit your goals. There’s an Aquabike (swim-bike) option for those who prefer to skip the run, and relay options if you’d like to take part as part of a team. With camping available on-site, you can make a full weekend of it and soak up the friendly, energetic atmosphere with friends, family and fellow athletes.
Highlights
- Stunning clear waters
- Beautiful scenery
- Well-marked courses
- Club camaraderie
- Supportive marshals
- Free event photos
- Custom-designed medal
- Finish line snacks and goodies
- Open to all abilities
- Great for spectators
- Camping available
This event is part of ATW Box End Triathlon.
Event photos
Event details
- Average fitness
- Event village
- Newcomers
- Spectators
- Swim hat required
- Teams
- Wetsuit advised
- Wetsuit not allowed if too hot
- Wetsuit required if too cold
- Distance markers
- Marshals
- Multiple laps
- Way markers
- GPX available
GPX route
The route is displayed on the map above.
Maps
Swim
Bike
Run
- Camping
- Paid parking
- Park
Event HQ
Box End Park
Box End Road
Box End
Bedford
Bedfordshire
MK43 8RQ
UK
Parking
Parking is available at Box End Lakes.
- Camping
- Drinks
- Goody bag
- Medal
- Race photo
- Snacks
Included
Finishers will receive:
- Custom designed medal
- Finish line snacks and goodies
- Fantastic triathlon experience
- Free event photos
Optional extras
- British Triathlon Federation Race Pass (£8)
- ICE band (£22.94)
- Personalised medal insert (£9)
- Camping
- Wetsuit hire
Great event and great staff, couldn’t have asked for better. Rhys F
I enjoyed the course, and the morning out. Good - lovely clear water in the swim - nice bike route, very scenic and pretty flat. Emily V
So well organised, brilliant bike route, grass run route. Super marshals, excellent free photos. Thanks Guys! Jo C
Excellent location. Great parking - hassle-free. Plenty of space in the park. Plenty of space in the transition area. Lake swim is great. It was sunny so hard to see 2nd buoy swimming into the sun. Steep exit - for me anyway. The cycle route is good. Good signposting and a marshal on most turns. Run is great through the park and trees. Very different from most others. It is a bit tough, but worth it. Nb you won’t get a pb on the run! Thoroughly recommend. John T
Now in my 25th year as a triathlete, I estimate that I have completed perhaps 100+ triathlons including 6 world qualifiers (Bermuda cancelled last year!) and this has to be one of the most enjoyable races on the circuit. Graham P
Had a good experience overall. The course was fun and volunteers were supportive! Tony G
Absolutely fantastic event with seamless organisation! Jesus V
Great event as ever from the ATW gang. So well organised, brilliant bike route, grass run route. Super marshals, excellent free photos. Thanks Guys! Jo C
Great event with really friendly atmosphere. Richard H
It was my first triathlon and I was pretty nervous. The registration and stewarding teams were very friendly and helpful and this made it much easier. Ben G
Reviews thanks to RaceCheck
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
- Age 15 & over on 31 Dec 2026
- Entries open
- Enter online
- Event merch available
Relay
Teams of 2 or 3.
Entry fees
Early bird entry fee
£75.00
Team entry fee
£99.00
Other races at event
- Sun 24 May 2026
- #2 of 0
07:00
Age 15 & over
£65
- 750 m lake swimming
- 24 km road cycling + 558 ft ascent
- Sun 24 May 2026
- #3 of 0
07:00
Age 17 & over
£96-£117
- 1500 m lake swimming
- 40 km road cycling + 837 ft ascent
- 10 km road running + 170 ft ascent
- Sun 24 May 2026
- #4 of 0
07:00
Age 17 & over
£86
- 1500 m lake swimming
- 40 km road cycling + 837 ft ascent
- Sun 24 May 2026
- #5 of 0
07:00
Age 18 & over
£117-£137
- 2250 m lake swimming
- 81 km road cycling + 1674 ft ascent
- 20 km trail running + 340 ft ascent
- Sun 24 May 2026
- #6 of 0
07:00
Age 18 & over
£97
- 2250 m lake swimming
- 81 km road cycling + 1674 ft ascent