JUL4
Trail Running•Half Marathon
Serpent Trail 20k
Petersfield, England, United Kingdom20 km
Trail Running100K
Serpent Trail 100k Ultra Marathon
4 July 2026
Petersfield, England, United Kingdom
Race details
Modality
Individual
Organizer
The Serpent Trail
Distance
100 km
Elevation
+1,785 m
Participants
150
Start time
06:00
Terrain
Trail
Difficulty
Advanced
Course profile
Hilly
Aid stations
8
Minimum age
18+
Certified
No
Event description
Experience the stunning landscapes of the South Downs National Park on this 100k ultra marathon following the iconic Serpent Trail. Featuring 1785m of elevation gain through rare heathlands and ancient woodlands, it offers a scenic yet demanding challenge for endurance athletes.
Related events
JUL4
Trail Running•50K
Serpent Trail 50k Ultra Marathon
Petersfield, England, United Kingdom50 km+700 m
JUL4
Trail Running•50 Miles
Serpent Trail 75k Ultra Marathon
Petersfield, England, United Kingdom75 km+1,250 m
1
2
3
4
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Sport
Trail Running
Distance
100K
Country
United Kingdom
Region
England