Ultra X Spring Trail Series
The Serpent Trail through the South Downs — five distances, one start line.
| Distance | Ascent | Per km |
|---|---|---|
| 110km | 1,563 m | 14 m |
| 50 Mile | 1,362 m | 17 m |
| 50km | 1,088 m | 22 m |
| 25km | 572 m | 23 m |
| 12km | 130 m | 11 m |
Nobody has reviewed this one yet
No reviews of the Spring Trail Series, and nothing on what people wore. Both are things no organiser publishes and every runner wants before they enter — how it actually went, and what was on your feet.
Ran it? Write the first reviewRunning it soon? Connect Strava and we will ask you about it the day you finish, so you do not have to remember to come back.
Pick your distance
starts 05:00
What you’re in for
Five distances on the Serpent Trail through the South Downs National Park, all starting and finishing at Cowdray Farm Shop in Midhurst. Rolling hills, old woodland, heath and riverside path, and runnable for most of its length — the 110 km carries 1,563 m of climb and the 12 km only 130 m. The long one goes at five in the morning and the rest follow through to eleven. Marked throughout, with GPS trackers and drop bags carried to the halfway point. Entry is free for anyone under 23.
Partner · affiliate policy
Aid stations
Stocked aid stations on the course. Drop bags moved to the midway point.
Cut-offs
Over two hours to cover each 10 km between checkpoints.
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How to enter
Sat, 17 Apr 2027 · Entries open
Enter on their website ↗Entries are handled by Ultra X, not by us. We take nothing for sending you there.
Add to your calendar · with the start time
Common questions
- The Spring Trail Series offers 5 distances: 110km (68.4 miles), 50 Mile (80.5 km), 50km (31.1 miles), 25km (15.5 miles), 12km (7.5 miles).