Centurion Autumn 100
- Total distance: 159.58 km
- Location: Streatley
- Race Date: 17 Oct 2026
- Finish rate: 99%
- Navigation: Fully Waymarked
- Nearest Station: Goring & Streatley (1.1 km)
- Aid Stations: 17
- Night Running: 57% in darkness
- Pacing Complexity: Moderate (32/100)
Centurion Autumn 100 Overview
No overview text has been written for this race yet.
Quick Facts
- Entrance Cost: £220
- Organiser: Centurion Running
- Start Town: Streatley
- Dogs Allowed: Unknown
- Start Date: 17 Oct 2026
- End Date: 18 Oct 2026
- Start Time: 9:00 AM
- Final Cut-off: 26.666666666666668 hours
Navigation
- Type: Fully Waymarked
- Closest Train Station: Goring & Streatley
- Distance from Start Line: 1.1 km
Eligibility
- Minimum Age: 20 years
- Gender Eligibility: All genders
- Minimum Entry Criteria: You must have completed a race of at least 50 Mile within the last 5 years.
Terrain & Elevation
The course covers a genuine mix of surfaces, with trail (38%) and grass (26%) being the most common and neither clearly dominating. 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. The longest unbroken stretch is 6.0 km of trail. Climbs are mostly on trail, though the surface varies across the ascents. Downhills are spread across a mix of surfaces, with trail most common.
- Trail / Path38% · 57.6 km
- Grass26% · 38.6 km
- Paved Road20% · 32.2 km
- Gravel / Track12% · 17.6 km
- Off-road / Unknown3% · 3.8 km
- Sand1% · 0.8 km
Distance
159.6 km
Ascent
1430 m
Descent
1433 m
High Point
217 m
This race has a long, flat stretch early on in the race, before a flat section until about 81km, before a long, flat stretch until about 115km, before a long, flat stretch towards the finish.
Compared against 13 other races of a similar distance, Centurion Autumn 100 has more total elevation gain than 31% of them, and more elevation gain per kilometre than 31% of them — flatter than most races of this distance.
Source: GPX Data
Climate
Navigation
Centurion Autumn 100 is fully waymarked — runners can rely on course markings to find their way and don't need to carry a map or GPX file as their primary means of navigation.
Source: Race Website - Explicit
Aid Stations
Stations
You'll need to keep an average pace of between 3.6 km/h and 9.2 km/h between aid stations to make the cut offs.
Stations
| KM | Name | Gap from Prev | Cut-off | Water | Cold Food | Hot Food | Hot Drinks | Gels | Medic | WC | Bags | Crew |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.0 | Start | 0.0 km | 0h | ✓ | ✓ | – | – | ✓ | ✓ | ✓ | ✓ | – |
| 10.5 | Wallingford | 10.5 km | 1h 45m | ✓ | ✓ | – | – | ✓ | ✓ | ✓ | – | – |
| 20.1 | Little Wittenham | 9.7 km | 3h 30m | ✓ | ✓ | – | – | ✓ | ✓ | – | – | – |
| 29.8 | Wallingford | 9.7 km | 5h 15m | ✓ | ✓ | – | – | ✓ | ✓ | ✓ | – | – |
| 40.2 | Goring | 10.5 km | 7h | ✓ | ✓ | – | – | ✓ | ✓ | ✓ | ✓ | – |
| 46.7 | North Stoke | 6.4 km | 8h 10m | ✓ | ✓ | – | ✓ | ✓ | ✓ | ✓ | – | – |
| 60.4 | Swyncombe | 13.7 km | 10h 30m | ✓ | ✓ | – | ✓ | ✓ | ✓ | – | – | – |
| 74.0 | North Stoke | 13.7 km | 12h 50m | ✓ | ✓ | – | ✓ | ✓ | ✓ | ✓ | – | – |
| 80.5 | Goring | 6.4 km | 14h | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | – |
| 90.6 | East Ilsley Down | 10.1 km | 15h 45m | ✓ | ✓ | – | ✓ | ✓ | ✓ | – | – | – |
| 100.6 | Chain Hill | 10.0 km | 17h 30m | ✓ | ✓ | – | ✓ | ✓ | ✓ | – | – | – |
| 110.6 | East Ilsley Down | 10.0 km | 19h 15m | ✓ | ✓ | – | ✓ | ✓ | ✓ | – | – | – |
| 120.7 | Goring | 10.1 km | 19h 15m | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | – |
| 128.6 | Pangbourne | 7.9 km | 21h | ✓ | ✓ | – | ✓ | ✓ | ✓ | ✓ | – | – |
| 140.8 | Reading | 12.2 km | 22h 20m | ✓ | ✓ | – | ✓ | ✓ | ✓ | ✓ | – | – |
| 153.0 | Pangbourne | 12.2 km | 24h 30m | ✓ | ✓ | – | ✓ | ✓ | ✓ | ✓ | – | – |
| 160.9 | Goring | 7.9 km | 26h 40m | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | – |
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: Race Website - Explicit
Night Running
Centurion Autumn 100 starts at 09:00 local time, with sunset around 18:07. Based on the median finisher time of 23:40:38, a runner at that pace would finish around 08:40 — after dark, spending around 13h 30m (57% of their race) running in darkness and covering roughly 91.7 km of the course after sunset.
Shaded stretches are expected to be run in the dark
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