Runners start · local time — Wave 1 at 05:30, wave 2 at 06:30 (assigned by expected finish time)
The start is Matterley Bowl, near Winchester.
After about 4 miles around the estate, you hop onto the South Downs Way, Britain's national trail,
which makes up about 93% of the course, and then the next 96 miles head east along the chalk ridge the whole way.
The course is 85% trail and 15% road, with about 3,800 meters of climbing.
The organizers say the route rises and falls repeatedly and that the chalk gets slippery when it rains.
On a hot day, the other side of that is long exposure to the sun on a ridge with no shade.
After dark, the ridge sinks into blackness, and one runner wrote that around 3:30 a.m. the skylarks all started singing at once.
The 2027 edition is the 16th, and the race is part of the World Trail Majors series.
About 600 runners start, and in 2026, both the men's and women's records were rewritten.
There's no need to be intimidated, though, because anyone who finishes inside the time limit of 30 hours gets a finisher's buckle.
If it's your first 100 miles, isn't it worth a shot?
Finish in under 24 hours and there's a separate one-day buckle, and there's no finisher medal.
The finish is one lap of the track at Eastbourne Sports Park, and family or crew can come in with you.
