Race Harborough Three Shires Way Ultra & Marathon
Point-to-point 50-mile ultra and marathon to Grafham Water
| Distance | Ascent | Per km |
|---|---|---|
| 50 Mile Ultra | 350 m | 4 m |
| 42.2 km Marathon | 173 m | 4 m |
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No reviews of the Three Shires Way Ultra & Marathon, 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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EXPERT
TRP grade · E5
14h cut-off, which needs 10:26/km
starts 08:00
This file is from a previous running and the course may have changed since. If you are navigating with it, get the current version from Race Harborough first.
What you’re in for
The ultra starts at Hanslope village hall near Milton Keynes and follows the Three Shires Way bridleway through Buckinghamshire, Bedfordshire and Northamptonshire, past Threeshire Wood, to Grafham Water, finishing with a loop of roughly 12 miles around the reservoir. The marathon starts later from Yelden village hall and shares the closing section. Ground is mostly well-kept bridleway, fields and woodland, with little technical terrain. Both races finish at Marlow Park, Grafham Water, and paid coaches run from the finish to each start. The route is waymarked as a public bridleway and the organisers add markings where needed, but GPX files are provided. Mandatory kit includes 1 litre of water capacity, a foil blanket, a whistle and your own cup. Runners carry GPS trackers.
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How to enter
Sat, 19 Jun 2027 · Not open yet · £40–£75
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Common questions
- The Three Shires Way Ultra & Marathon offers 2 distances: 50 Mile Ultra (80.5 km), Marathon (42.2 km / 26.2 miles).