The Relentless
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Event details
The Relentless is scheduled for 18 September 2026 at Bridgend Miniature Railway, Fountain Road, Aberkenfig, Tondu, Bridgend, CF32 0EH, Mid Glamorgan, GB. The event is organised by Mad Running Junkies. Entries open 12 October 2025 and close 17 September 2026. Each distance is limited to 25 entrants. Entry fees listed are: 50 mile entry only £70, entry with T-shirt £100; 100 mile entry only £140, entry with T-shirt £170. Entry requires registration with SiEntries.
Course and support
The race uses a 10-mile loop format. Distances:
- 50 mile - five 10-mile loops
- 100 mile - ten 10-mile loops
Approximate elevation gain is 3,500 ft for the 50 mile and 7,000 ft for the 100 mile. A major hub at the start/finish serves as the lap checkpoint with food, hydration, and medical support. Drop-bag access and a crew zone are available each lap. A sleep station is provided if required. Time limits are 24 hours for the 50 mile and 45 hours for the 100 mile.
Awards
Prizes include bespoke medals and trophies for 1st, 2nd and 3rd male and female in each distance. The 100 mile finishers receive a bespoke 100 mile commemorative ring. Visit the organization's website for the most recent information.
