Buckinghamshire
Ultra marathons in Buckinghamshire
There are 5 ultra marathons in Buckinghamshire on the Verus calendar, running across 4 months of the year. The next is The Marlow Donkey on 4 October 2026. Every entry below links to the organiser's own site, and the fuller guides are researched by hand against it — dates, entry costs, start times and course detail.
- Races listed
- 5
- Still upcoming
- 5
- Flattest course
- Wendover Woods 50
Ultra Marathons in Buckinghamshire, in context
Ultra marathons make up most of Buckinghamshire's racing on Verus — 5 of 9 races, or about 56%. If you run this distance, this is a well-served county.
The dates are spread across 4 months of the year, which gives real choice about when to peak rather than forcing a single date.
Only one of them publishes an elevation figure: Wendover Woods 50, at 10,000ft of climb. Where an organiser has not published one, this site says so rather than estimating.
Every one of them, in date order
The Marlow Donkey
Marlow, Buckinghamshire, UK
Wendover Woods 50
Aston Hill, Halton, Aylesbury, Buckinghamshire
Country to Capital
Wendover, Buckinghamshire to Little Venice, London, UK
The Ridgeway Challenge
Ivinghoe Beacon, Buckinghamshire to Avebury, Wiltshire, UK
Chiltern Hills 100K
The Chiltern Hills, Buckinghamshire, UK
Dates and entry at a glance
| Race | Date | Location | Entry |
|---|---|---|---|
| The Marlow Donkey | 4 Oct 2026 | Marlow, Buckinghamshire, UK | Entry through SI Entries |
| Wendover Woods 50 | 14 Nov 2026 | Aston Hill, Halton, Aylesbury, Buckinghamshire | Entry is £115 |
| Country to Capital | 9 Jan 2027 | Wendover, Buckinghamshire to Little Venice, London, UK | Entry direct through Go Beyond Events |
| The Ridgeway Challenge | 29 May 2027 | Ivinghoe Beacon, Buckinghamshire to Avebury, Wiltshire, UK | Entry through Eventrac |
| Chiltern Hills 100K | 2 Oct 2027 | The Chiltern Hills, Buckinghamshire, UK | Entry through Runaway Racing — check the official site for current pricing |
Also racing in Buckinghamshire
Smaller local races we've indexed but not written a full guide for. We link straight to the organiser rather than keeping you here — there's nothing we could tell you about these that they don't tell you better.
Athletes from Buckinghamshire on Verus
Everyone here has set out what they're training for, in public. Find someone from your own town chasing the same start line.