South Downs - 100km
- Total distance: 100 km
- Location: Eastbourne
- Race Date: 29 May 2027
- Format: 1 day
- Nearest Station: Eastbourne (2.1 km)
- Aid Stations: 8
- Pacing Complexity: Moderate (50/100)
South Downs - 100km
- Distance
- 100 km
- Total ascent
- 2,458 m
- Cut-off
- 19h
- Town/Village
- Eastbourne
- Date
- 29 May 2027
Overview
No overview text has been written for this race yet.
Quick Facts
- Entrance Cost: Unknown
- Organiser: UK Ultra
- Start Town: Eastbourne
- Dogs Allowed: Unknown
- Start Date: 29 May 2027
- End Date: 29 May 2027
- Start Time: 6:00 AM
- Final Cut-off: 19h
Navigation
- Type: Unknown
- Closest Train Station: Eastbourne
- Distance from Start Line: 2.1 km
Eligibility
- Minimum Age: 20 years
- Gender Eligibility: All genders
- Minimum Entry Criteria: You must have completed a race of at least Marathon within the last 4 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 (46%) and grass (22%) 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. Ascending sections cover a varied mix of surfaces with no single type dominating the climbs. Downhills are spread across a mix of surfaces, with trail most common.
South Downs - 100km has 43.3 km of trail / path, this is in the top 16% of all our races.
- Trail / Path46% · 43.3 km
- Grass22% · 20.3 km
- Gravel / Track19% · 18 km
- Paved Road11% · 10.4 km
- Off-road / Unknown2% · 1.8 km
Distance
100.0 km
Ascent
2458 m
Descent
2458 m
High Point
224 m
Compared against 20 other races of a similar distance, South Downs - 100km has more total elevation gain than 50% of them, and more elevation gain per kilometre than 40% of them — roughly typical in hilliness for its distance.
Source: GPX Data
Gradient
5.68%
Average climb gradient
Do you have experience of gentle climbs like South Downs - 100km's, which average 5.68%?
South Downs - 100km's climbs average 5.68%. If your training never rehearses sustained climbing at that gradient, race day will be the first time your legs meet it.
3.69%
Average descent gradient
Do you have experience of gentle descents like South Downs - 100km's, which average 3.69%?
South Downs - 100km's descents average 3.69%. 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
South Downs - 100km scores 50/100 for pacing complexity, rated moderate.
Similar-distance races score a median of 36/100 (5 races compared).
South Downs - 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
You'll need to keep an average pace of between 4.2 km/h and 5.7 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 15.2 | Litlington | 15.2 km | – | ✓ | ✓ | – | – | – | – | – | – | – |
| 26.7 | Firle | 11.5 km | – | ✓ | ✓ | – | – | – | – | – | – | – |
| 38.6 | Offham | 11.9 km | – | ✓ | ✓ | – | – | – | – | – | – | – |
| 54.7 | Housedean | 16.1 km | 11h | ✓ | ✓ | – | – | – | – | – | ✓ | – |
| 66.1 | Southease | 11.4 km | 13h | ✓ | ✓ | – | – | – | – | – | – | – |
| 77.3 | Alfriston | 11.2 km | 15h 30m | ✓ | ✓ | – | – | – | – | – | – | – |
| 85.1 | Jevington | 7.8 km | 17h | ✓ | ✓ | – | – | – | – | – | – | – |
| 93.5 | East Dean | 8.4 km | 19h | ✓ | ✓ | – | – | – | – | – | – | – |
Vegan food is available at every aid station on this course.
Source: Not recorded
Are you ready for South Downs - 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.
