Trail runs in West Sussex
Find trail runs in West Sussex in 2026/2027 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.
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- Sat 18 Apr
- FREE-£175
Spring Trail Series
Join over 1,200 runners and walkers to the Serpent Trail, a stunning route that weaves through the greensand hills, rivers, woodland, and lowland heath of the South Downs National Park.
- Trail run 2
- 50K ultra run
- Ultra run 2
- Sat 23 - Sun 24 May
- £139
Sussex Marathon
Part of the London 2 Brighton Ultra weekend, run, jog or walk from Turners Hill through wonderful Sussex countryside up & over the testing South Downs before coastal views to Brighton Racecourse.
- 42 km trail running + 700 m ascent
- Sat 20 Jun
- £60-£185
Race to the King
Take on a challenge fit for royalty in this epic ultramarathon taking in the South coast, South Downs Way, and Monarch’s Way over your choice of distance from a 30km loop up to a non-stop 100km!
- 50K ultra run 2
- 100K ultra run
- Trail run
- Charity ultra
- Sat 21 Mar
- £52-£98
Winter's End - 50 Mile Ultra & Marathon
- Marathon 2
- Ultra run
- Sun 29 Mar
- £42
Springtide Half Marathon
- 13.5 miles trail running + 1175 ft ascent
- Sat 11 Apr
- £19.50-£30.50
Cowdray Estate Trail Run Series - Spring
- 5K run
- CaniCross 3
- 10K run
- 10 miler
- Sun 3 May
- £20
Three Forts Challenge | 5 Mile Trail Run
- 5 miles trail running + 553 ft ascent
- Fri 26 Jun
- £19.50-£27.50
Cowdray Estate Trail Run Series - Summer
- 5K run
- CaniCross 2
- 10K run