Centurion Autumn 100
- Total distance: 159.58 km
- Location: Streatley
- Race Date: 17 Oct 2026
- Finish rate: 85%
- Entry Cost: £220
- 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
- Distance
- 159.58 km
- Total ascent
- 1,430 m
- Cut-off
- 26h 40m
- Town/Village
- Streatley
- Date
- 17-18 October 2026
- Entry cost
- £220
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: 26h 40m
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.
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 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.
Centurion Autumn 100 has 57.6 km of trail / path, this is in the top 8% of all our races.
- 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
Compared against 12 other races of a similar distance, Centurion Autumn 100 has more total elevation gain than 33% of them, and more elevation gain per kilometre than 33% of them — flatter than most races of this distance.
Source: GPX Data
Gradient
2.97%
Average climb gradient
Do you have experience of gentle climbs like Centurion Autumn 100's, which average 2.97%?
Centurion Autumn 100's climbs average 2.97%. If your training never rehearses sustained climbing at that gradient, race day will be the first time your legs meet it.
1.34%
Average descent gradient
Do you have experience of gentle descents like Centurion Autumn 100's, which average 1.34%?
Centurion Autumn 100's descents average 1.34%. 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
Centurion Autumn 100 scores 32/100 for pacing complexity, rated moderate.
Similar-distance races score a median of 41/100 (5 races compared).
Centurion Autumn 100 is one of the more pacing-friendly races at this distance. The course is relatively consistent in effort demand, which makes a controlled, steady approach more viable than on many similar-distance events. Terrain type changes is still the main watchpoint, but overall the course rewards disciplined execution over reactive pacing.
Source: GPX Data
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
Are you ready for Centurion Autumn 100?
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.
