Join the largest multisports organiser in the UK, ATW, for the Box End Triathlon, featuring three race distances at the stunning Box End Lake:

• Sprint: 750m swim, 26km bike, 5km run
• Standard: 1500m swim, 40km bike, 10km run
• Centurion: 2250m swim, 80km bike, 20km run ENTER HERE

Box End Lake offers pristine water quality and a scenic on-site run route, making it the perfect venue for this event.

Event Highlights:

• Open to All Abilities: Whether you're a seasoned athlete or a beginner, everyone is welcome.
• Centurion Distance: Ideal for those training for a 70.3 (Half Ironman), this 100k distance race mirrors the PTO T100 series.
• Aquabike and Relay Options: Prefer just swimming and biking? Choose the Aquabike. Want to compete as a team? Opt for the relay with 2-3 participants.

Additional Information:

• Non-Draft Legal Race: Ensures a fair competition for all.
• Multi-lap course: Great opportunites for spectators to cheer you on.
• Camping Available: Make a weekend of it at Box End Park. Click HERE for more information and to book your camping tickets.
• Inclusivity: Transgender athletes are warmly welcomed. Starting January 1, 2023, there will be a Female category (for athletes assigned female at birth) and an Open category (for all other athletes).
• Wetsuit Hire: Need a wetsuit? Rent a Zone3 wetsuit with more information available HERE.

Why Enter? 

• Stunning Clear Waters
• Beautiful Scenery
• Well-Marked Course
• Supportive Marshals
• Free Event Photos
• Custom-Designed Medal
• Finish Line Snacks & Goodies
• Positive Participant Reviews on Racecheck (Read reviews)

Sign up now for an unforgettable triathlon experience!

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.