Dark Downs - 50km

Distance
50 km
Total ascent
1,391 m
Cut-off
12h
Town/Village
Lewes
Date
3 October 2027

Overview

No overview text has been written for this race yet.

Quick Facts

  • Entrance Cost: Unknown
  • Organiser: UK Ultra
  • Start Town: Lewes
  • Dogs Allowed: Unknown
  • Start Date: 3 Oct 2027
  • End Date: 3 Oct 2027
  • Start Time: 6:30 PM
  • Final Cut-off: 12h

Navigation

  • Type: Fully Waymarked
  • Closest Train Station: Plumpton
  • Distance from Start Line: 1.5 km

Eligibility

  • Minimum Age: 20 years
  • 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 covers a genuine mix of surfaces, with gravel (39%) and trail (33%) 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. Climbs are mostly on gravel, though the surface varies across the ascents. Downhills are spread across a mix of surfaces, with gravel most common.

Dark Downs - 50km has 19.7 km of gravel / track, this is in the top 35% of all our races.

  • Gravel / Track39% · 19.7 km
  • Trail / Path33% · 16.8 km
  • Grass15% · 7.8 km
  • Paved Road13% · 6.1 km

Compared against 29 other races of a similar distance, Dark Downs - 50km has more total elevation gain than 62% of them, and more elevation gain per kilometre than 62% of them — hillier than most races of this distance.

Gradient

6.71%

Average climb gradient

Do you have experience of moderate climbs like Dark Downs - 50km's, which average 6.71%?

Dark Downs - 50km's climbs average 6.71%. If your training never rehearses sustained climbing at that gradient, race day will be the first time your legs meet it.

4.22%

Average descent gradient

Do you have experience of gentle descents like Dark Downs - 50km's, which average 4.22%?

Dark Downs - 50km's descents average 4.22%. If your training never rehearses sustained descending at that gradient, the downhills will empty your quads long before the finish.

Climate

Pacing Complexity

Dark Downs - 50km scores 52/100 for pacing complexity, rated high.

Similar-distance races score a median of 44/100 (5 races compared).

Dark Downs - 50km 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.

Aid Stations

Stations

You'll need to keep an average pace of 4.2 km/h between aid stations to make the cut offs.

9.7 km

Gap from prev

9.7 km

WaterYes
Cold FoodYes
Hot Food–
Hot Drinks–
Gels–
Medic–
WC–
Bags–
Crew–

24.1 km

Gap from prev

14.5 km

WaterYes
Cold FoodYes
Hot Food–
Hot Drinks–
Gels–
Medic–
WCYes
Bags–
Crew–

35.4 km

Gap from prev

11.3 km

WaterYes
Cold FoodYes
Hot Food–
Hot Drinks–
Gels–
Medic–
WCYes
Bags–
Crew–

45.9 km

Gap from prev

10.5 km

WaterYes
Cold FoodYes
Hot Food–
Hot Drinks–
Gels–
Medic–
WC–
Bags–
Crew–
First toilet at 24.1 km. Worth using facilities before the start and being mindful of fluid intake in the early miles.

None of the aid stations on this course are confirmed to offer vegan food, so vegan runners should plan to carry their own nutrition.

Night Running

Dark Downs - 50km starts at 18:30 local time, with sunset around 18:34. Based on the median finisher time of 7:03:24, a runner at that pace would finish around 01:33 — after dark, spending around 7h 03m (100% of their race) running in darkness and covering roughly 51.9 km of the course after sunset.

243m191m138m86m33m0 km52.3 km

Shaded stretches are expected to be run in the dark

Are you ready for Dark Downs - 50km?

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.