Chiltern Hills - 100km
- Total distance: 100 km
- Location: Chesham
- Race Date: 2 Oct 2027
- Finish rate: 87%
- Entry Cost: £162
- Nearest Station: Chesham (0.4 km)
- Aid Stations: 6
- Pacing Complexity: Moderate (43/100)
Chiltern Hills - 100km
- Distance
- 100 km
- Total ascent
- 2,212 m
- Town/Village
- Chesham
- Date
- 2 October 2027
- Entry cost
- £162
Overview
No overview text has been written for this race yet.
Quick Facts
- Entrance Cost: £162
- Organiser: Runaway Racing
- Start Town: Chesham
- Dogs Allowed: Unknown
- Start Date: 2 Oct 2027
- End Date: 2 Oct 2027
- Start Time: Unknown
- Final Cut-off: Unknown
Navigation
- Type: Unknown
- Closest Train Station: Chesham
- Distance from Start Line: 0.4 km
Eligibility
- Minimum Age: Unknown
- Gender Eligibility: All genders
- Minimum Entry Criteria: Unknown
Toilets
- Hand Washing Beyond Sanitiser: Unknown
- Period Products Provided: Unknown
- Female Only Toilets: Unknown
Family & Spectators
- Baby Changing at Start: Unknown
- Family Friendly Spectator Areas: Unknown
- Flexible Deferral or Cancellation: Unknown
Safety
- Marshalls at Isolated Areas: Unknown
- Safeguarding and Reporting Policy: Unknown
- Can Hide Location from Public Tracking: Unknown
Terrain & Elevation
The course is mainly trail (50%), with grass (26%) making up most of the rest. The terrain is highly fragmented, switching roughly every kilometre. This demands constant mental engagement and limits the ability to build a sustained rhythm from surface consistency alone. Climbs are mostly on trail, though the surface varies across the ascents. Downhills are spread across a mix of surfaces, with trail most common.
Chiltern Hills - 100km has 47.2 km of trail / path, this is in the top 14% of all our races.
- Trail / Path50% · 47.2 km
- Grass26% · 24 km
- Gravel / Track16% · 14.6 km
- Paved Road8% · 7.8 km
Distance
99.7 km
Ascent
2212 m
Descent
2212 m
High Point
261 m
Compared against 20 other races of a similar distance, Chiltern Hills - 100km has more total elevation gain than 50% of them, and more elevation gain per kilometre than 20% of them — flatter than most races of this distance.
Source: GPX Data
Gradient
4.51%
Average climb gradient
Do you have experience of gentle climbs like Chiltern Hills - 100km's, which average 4.51%?
Chiltern Hills - 100km's climbs average 4.51%. If your training never rehearses sustained climbing at that gradient, race day will be the first time your legs meet it.
2.59%
Average descent gradient
Do you have experience of gentle descents like Chiltern Hills - 100km's, which average 2.59%?
Chiltern Hills - 100km's descents average 2.59%. If your training never rehearses sustained descending at that gradient, the downhills will empty your quads long before the finish.
Source: GPX Data
Climate
Pacing Complexity
Chiltern Hills - 100km scores 43/100 for pacing complexity, rated moderate.
Similar-distance races score a median of 36/100 (5 races compared).
Chiltern Hills - 100km is among the more pacing-complex races at this distance. The challenge is not just the total distance or ascent — it is the repeated need to change effort level. A fixed pace target is unlikely to work here. The dominant source of complexity is terrain type changes, which means preparation should include training runs that deliberately mix different intensities in sequence.
Source: GPX Data
Aid Stations
Stations
Stations
| KM | Name | Gap from Prev | Cut-off | Water | Cold Food | Hot Food | Hot Drinks | Gels | Medic | WC | Bags | Crew |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 14.0 | Hastoe Village Hall | 14.0 km | – | – | – | – | – | – | – | ✓ | – | – |
| 28.0 | Little Gaddesden Village Hall | 14.0 km | – | – | – | – | – | – | – | ✓ | – | – |
| 41.4 | Hastoe Village Hall | 13.4 km | – | – | – | – | – | – | – | ✓ | ✓ | – |
| 57.8 | Whiteleaf Hill | 16.4 km | – | – | – | – | – | – | – | – | – | – |
| 75.3 | Bledlow Ridge Village Hall | 17.5 km | – | – | – | – | – | – | – | ✓ | – | – |
| 88.0 | Little Hampden | 12.7 km | – | – | – | – | – | – | – | ✓ | – | – |
None of the aid stations on this course are confirmed to offer vegan food, so vegan runners should plan to carry their own nutrition.
Source: Not recorded
Are you ready for Chiltern Hills - 100km?
Compare it to a race you've already run, or connect Strava and see the three biggest gaps between your training and what this course will ask of you.
