Ultra Challenge Chiltern 50
Fifty or twenty-five kilometres of Chiltern loops out of Henley, with a 10K for the day.
| Distance | Ascent | Per km |
|---|---|---|
| 50km | 920 m | 18 m |
| 25km | 500 m | 20 m |
| 10K | 235 m | 24 m |
Nobody has reviewed this one yet
No reviews of the Chiltern 50, 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.
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What you’re in for
Fifty or twenty-five kilometres of Chiltern loops out of the Henley basecamp, with a 10K for the day. Late September. An Ultra Challenge event, which means walkers, joggers and runners on the same course, signed with pink arrows and glow sticks after dark, with a covered rest stop every twelve kilometres or so — food, drink, medics, toilets — and a bigger one every twenty-five. Runners can enter with a target time; most of the field will be walking.
Terrain and trail
Chalk bridleway, beech woodland and the Thames path around Henley — firm and rolling, with short steep pulls out of the valleys. Signed throughout. A road shoe with tread.

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Other races near here
Chilterns races →Races from other organisers starting within 30 km of Henley Basecamp, Oxfordshire, nearest first.
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How to enter
No date announced for the next running yet. Ultra Challenge’s site ↗ is where it will show up first.

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Common questions
- The Chiltern 50 offers 3 distances: 50km (31.1 miles), 25km (15.5 miles), 10K (6.2 miles).