Welcome to the ATW Mallory park Duathlon, featuring the draft-legal Sprint Duathlon Age Group Qualifier (World Championship)

This traffic-free race circuit is the perfect venue for athletes of all standards to tackle a Run-Bike-Run. No matter if you are new to the sport, nervous of racing on open roads, or looking for a traffic-free environment to enable you to race hard in a competitive race.

Races will start from 08:30AM

The flat 1.25km run laps take place on an accurately measured lap around the tarmac track. There will be a separate lap used for the first and second runs.
The 2.5km bike lap uses the smooth racetrack of the famous Mallory Park circuit that will inspire you with confidence and enable you to post a great bike split.
The courses have been designed to pass the transition area each lap so you will get great spectator support throughout the event.

Join us the night before the event and stay on site. No early morning wake up call or rushing to get to the venue. Secure your camping spot HERE

Purchase this years event t-shirt HERE

Please note that dogs are not allowed at Mallory Park (sorry!)

Reasons to enter this event:

- On site camping
- Fast & Flat, Traffic-free course 
- Finish line snacks & goodies
- Super-smooth bike circuit
- Supportive marshals 
- Custom designed medal 

This race is hosting a British Triathlon Age-Group Qualifier for the 2027 World Sprint Distance Duathlon Championships. If you intend to qualify for the Great Britain Age Group Team, you must be a Core or Ultimate member of British Triathlon through your Home Nation and register your intent to qualify here before 5pm on the Friday before the race.
Further information on the British Triathlon Age-Group Team can be found here.

Charity - Join us in making every stride count by raising money for our partner charity, Alzheimers Research UK - your run will not only challenge your limits but also change lives, one step at a time, for a cure. Opportunities to donate and fundraise will appear at checkout.

ATW Transfer & Refund Policy

At ATW, we understand that sometimes plans change. While we do not offer refunds or transfers to another person, we provide a hassle-free event transfer option for those unable to attend their booked event. If you are unable to participate in your scheduled event for any reason—including injury, illness, pregnancy, bereavement, or other unforeseen circumstances—you can transfer your entry to any future ATW event. There is no proof required, we trust you!
Even better news, transfers can be made all the way up to 48 hours before your original event date.

ATW Community

At ATW we think of our participants as a community and we love to hear about the community's dreams and achievements.

If you'd like to share those dreams and achievements you can do so on any of our social media platforms. Equally if you'd like any advice about your upcoming event you will almost certainly find someone who can provide some guidance.

Links to all our social media platforms are at the bottom of the page, including to our ATW Chat Facebook group, which might be the most interactive platform if asking for help.

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.