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

MacTuff is a Scottish events company, MacTuff Limited of Glenrothes, Fife, that runs mud and obstacle challenges for adults and children along with a road half marathon. Its obstacle events include the Really Muddy runs at Castle Fraser, Sauchen near Aberdeen, and in Fife and Kinross, plus MacTuff Kids events in Fife.

The Really Muddy events offer a 3 km kids course and 5 km and 10 km adult courses through mud, water and obstacles. MacTuff Kids is a roughly 3 km course where children run alongside participating adults, with obstacles built in two heights so that adults and children can tackle them together; the organiser sets adult-to-child ratios by age. Participants receive a T-shirt and medal, with free parking, spectator access, photos and bag drop. The events are aimed at families, groups, charity fundraisers and newcomers to obstacle running rather than competitive racers.

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.