MacTuffX is the United Kingdom's largest functional fitness racing series in 2026. It is open to all fitness levels and abilities, including HYROX, CrossFit, and beginner athletes. The series spans over 30 venues across the UK, from the South Coast of England to Aberdeenshire, Scotland, to minimize travel. Events are held at athletics stadiums. Participants can compete as solos, pairs, or five-person relay teams. The MacTuffX 2X format offers twice the running distance. Each race includes 10 exercise stations that test strength, endurance, and agility. Weight options include Men, Ladies, and LITE for beginners. After each exercise, participants run 400 meters (or 800 meters for MacTuffX 2X) before proceeding to the next station. Every entry includes a MacTuffX race T-shirt, a bespoke event medal, and free race photos. Spectator entry is free.