Welcome to the Mallory Race Circuit 50k & 100k !

Get ready for the challenge of a lifetime at the Mallory Park 50k & 100k race! Whether you’re a seasoned ultra-runner or taking on your first endurance challenge, this race is an opportunity to push your limits, discover your true strength, and celebrate your journey with a vibrant, supportive community.

Why Mallory Park?
Mallory Park offers a unique mix of rolling terrain, scenic beauty, and a perfect balance of challenge and excitement. With its closed-circuit layout, you’ll experience an unparalleled level of safety and support throughout your entire race. It’s the ultimate place to focus, dig deep, and reach new milestones.

What’s Waiting for You:

• Incredible Iconic Circuit: Whether you're tackling the 50k or 100k, you'll have the unique chance to race on the same legendary motor racing circuit that once hosted a Formula 1 event, making this experience even more thrilling.
• Challenging & Rewarding: Both the 50k and 100k routes offer a true test of mental and physical strength. Push yourself to new heights in a friendly yet competitive atmosphere.
• Support Along the Way: We’ve got your back! With an aid station every 5k, enthusiastic race marshals, a professional commentator, and an on-course DJ, you’ll have everything you need to keep you fueled and motivated.
• Finish Line Glory: Crossing the finish line at Mallory Park will be a moment you’ll never forget. You’ve earned every step, and your triumph will be celebrated by a community of passionate runners
• Post-Race Celebration: After crossing the finish line, join us for a lively celebration with refreshing drinks, snacks, BBQ and music, surrounded by fellow runners and friends.
• Onsite Camping: Dont worry about travelling home after your exertions, camping is available on-site.

Race Perks Include:

• Custom race medals for all finishers
• Exclusive race-day photos to capture your memories
• Aid station every 5k fully stocked with hydration and nutrition
• An allocated area at the aid station for you to leave your own personal hydration and nutrition
• On-site parking and access to event facilities including camping
• A chance to be part of an inspiring community of ultra-runners!

Championships: 
We are proud to be hosting the following championships at this event:
- The 100k race incorporates the annual Anglo Celtic Plate home countries event, as well as the British, Scottish and Irish 100k road championship for 2025. 
- The 50k race incorporates the British 50k championship for 2025
- The British Masters Athletic Federation (BMAF) championship 2025 will be incorporated into both the 100k and 50k races
(For all British championship competitors a closing date of 27th April applies and both UKA Registration and British nationality is mandatory)

Ready to Take on the Challenge?
Signing up is easy! Just select your race distance below and get started. Whether you’re running for a personal best, your first ultra, or simply to challenge yourself, this race is a celebration of grit, determination, and personal growth.

Event Organiser
ATW was founded in 2011 by James Shipley and has since grown into one of the UK’s premier event companies. Specialising in running, triathlon, duathlon, aquathon, cycling, swimming, and all swim-bike-run events, ATW now hosts over 40,000 entries a year and has become a favourite among those who are determined to Dream, Believe, and Achieve.

NOTE: There is a 12-hr cutoff for the 100k and 11-hr cutoff for the 50k. Anyone entered in the 100k who does not think they will make the cutoff can drop down to the 50k mid-race.
There is a min-age of 20 years on the day of the race.

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.