Nuclear Fit vs TYRUN : distance, stations, prix et difficulté comparés (2026-27)

Nuclear Fit is an outdoor hybrid fitness race run by Nuclear Races at its obstacle course site near Brentwood, Essex. Instead of an indoor track, athletes run six 1 km trail loops, each including two 4 ft hurdles, and complete a fitness station after each loop in a central arena called The Core.

The stations use farm-themed equipment: a tyre flip, a farmers urn hug, a plough pull, a milk churn carry, a sandbag duck-and-throw and a squat-and-lift, with separate loads for men and women. Categories include singles, doubles and mixed doubles, plus a three-person relay in which each member completes two runs and two stations, and a Pro wave with longer station distances. Waves start every 10 minutes, chip timing records each run and station split, and there is a 2-hour time limit. It suits runners and gym-goers who want a hybrid race on trails rather than indoors.

TYRUN is a seasonal fitness race series in Belgium and the Netherlands, run by TYRUN B.V. Each season brings a new workout with new exercises, distances and standards, and races during the season count towards a leaderboard and a season final.

The Season 2 course is four laps, each a 600 m run followed by two stations, for 2.4 km of running and eight stations in total: Echo Bike, seated sled pull, weighted step-ups, med ball sit-ups, a 1,000 m row, devil's presses, a 1,000 m SkiErg and a sandbag carry over a yoke. Athletes race as singles or doubles in Scaled, Open or Pro divisions, which change only the loads and calories, or as four-person relay teams in Open. Most athletes finish in 60 to 90 minutes and there is no cut-off. Season 2 stops include Liège, Hasselt, Amsterdam (Vijfhuizen) and Antwerp, with the finals in Ghent. The Scaled division is aimed at first-time racers.