Got your mandatory kit sorted?
Browse the ultra runners' kit list for all your essential gear.
Thunder Races - Harrold Odell 50km Ultramarathon
Discover one of Bedfordshire’s most beautiful nature reserves on foot. The Harrold Odell 50km, hosted by the fantastic team at Thunder Races, is a brilliantly accessible and incredibly scenic ultramarathon set within a stunning 144 acre country park.
Whether you are a seasoned ultra-runner looking for a fast, flat course to smash a personal best, or a road marathoner looking for the perfect, un-intimidating gateway into the world of trail ultramarathons, this event ticks all the boxes. Thunder Races are renowned for their highly inclusive, family-friendly atmosphere and superb event organisation, making this a standout fixture in the Home Counties running calendar.
Course
The Harrold-Odell Country Park offers a picturesque, relatively flat and fast trail experience. You will be running on a wonderful mix of hard-packed gravel paths, woodland trails, and grassy river meadows. It is highly runnable, but trail shoes are still recommended if the weather has been wet leading up to race day.
If you are intimidated by the navigation, massive elevation, and heavy kit requirements of typical ultramarathons, the Harrold Odell 50kk ultra is the perfect antidote. It offers the prestige of completing a 50km ultra but in a highly controlled, supportive and beautiful environment. It is flat, fast, friendly and well organised.
For the most up-to-date event dates, complete registration information, and to secure your place on the start line, please visit the official Thunder Races website.
