100 Mile Grand Slam
Always double-check with the organizer's website! This page may contain affiliate links.
About the race
The 100 Mile Grand Slam 2027 is an entry package that covers four separate 100 mile races organised by Centurion Running. The package groups four established endurance events held between May and October 2027 and is listed as an offline event spanning the 2027 season.
The package includes these races:
- 100 mile Thames Path 100, 1st-2nd May 2027
- 100 mile South Downs Way 100, 12th-13th June 2027
- 100 mile North Downs Way 100, 7th-8th August 2027
- 100 mile Autumn 100, 16th-17th October 2027
Entry for the Grand Slam carries a published fee of £908.00 with a UKA discounted fee of £900.00. The minimum age for entry is 20 or older. At the time of listing there were 12 participants entered. Entries open on 31st May 2026 and close on 3rd April 2027.
The organiser is Centurion Running and the entry package references existing event terms including a cancellation and refund policy. An optional XCover purchase is available for participants who wish to seek a refund for unforeseen circumstances. The entry is offered as a combined registration covering the four individual 100 mile events. Visit the organization's website for the most recent information.
