100 miles
A hundred miles of borderlands, hills and forest. Set off at dusk and see where the night takes you.
- Start · 2027
- Fri 11 June · 8pm
- Start & finish
- Chepstow
- Elevation gain
- 10,000ft
- Time allowance
- 50 hours
- Entry fee
- £205
Choose your distanceTwo distances. One sense of wonder.
100 miles or 100km.
Beyond the trees. Over the hills.

Go long into the night, or greet the trail with a morning start. Two ways to experience Pomona, each a challenge to make your own.
A hundred miles of borderlands, hills and forest. Set off at dusk and see where the night takes you.
A new loop from Chepstow. A first 100km or your next big challenge — an adventure in its own right.

Ancient borderlands, open ridgelines and deep woodland. Start and finish in Chepstow, with a hundred miles of adventure in between.
01 / THE BORDERLANDSAlong a landscape shaped by history.
02 / THE HILLSOut beneath an open sky.
03 / THE FORESTInto the shelter of the trees.
A celebration of trails, people and the adventures we share.
Three landscapes. One hundred miles. The story is just beginning.
From Chepstow, journey through the Wye Valley and borderlands towards the Malvern Hills, then return through May Hill and the Forest of Dean.
Indoor checkpoints approximately every 10 miles offer toilets, shelter, food and drink. Reach the finish and earn a limited-edition POMONA 100 belt buckle and an enchanting medal.
Enter 100 miles

100 miles or 100km. Find the challenge that calls to you.
Enter 100 milesEntries are open to everyone. Join us in Chepstow for 100 miles or 100km, warm welcomes and a finish worth celebrating.
Choose your distance