Tough Mudder vs True Grit: distancia, estaciones, precio y dificultad comparados (2026-27)

Tough Mudder is an obstacle course event series founded in 2010 by Will Dean and Guy Livingstone, with its first event in Pennsylvania, USA. It has been owned by Spartan Race since 2020. Events are held mainly in the United States and Canada, with regional editions in the UK and other countries.

The main formats are Tough Mudder 5K, with 12 or more obstacles, and Tough Mudder 15K, with 20 or more obstacles over a 15 km course. Infinity events and the World's Toughest Mudder are 8, 12 and 24-hour endurance challenges. Signature obstacles include Arctic Enema, Mudderhorn and Electroshock Therapy. Tough Mudder is built around teamwork rather than finishing times, and most participants sign up as a team. The 5K suits newcomers and groups, while the 15K and endurance formats call for solid running fitness and upper-body strength.

True Grit is an Australian-owned obstacle course race created by members of the Australian special forces and designed for everyday Australians. Events have been held in New South Wales, Queensland, Victoria, South Australia and Western Australia; upcoming races include Melbourne (Wildwood) and Sydney (Lower Portland).

The main courses are Half Grit, about 5 km, and Full Grit, about 10 km, with military-inspired obstacles that involve running, crawling and climbing through mud and water. The brand has also run 15 km and 30 km events and a 24-hour enduro in NSW. Minimum ages are 12 for Half Grit and 16 for Full Grit. Runners can enter solo, including a dedicated wave for solo entrants, or as gym and group teams, with a group discount for teams of ten or more. The organisers say it suits racers of all ages and fitness levels, with the 10 km course being the tougher test.