Five Rivers Ultra - 100 Mile

Distance
160.934 km
Total ascent
1,139 m
Cut-off
32h
Town/Village
East Suffolk
Date
15-16 May 2027

Overview

No overview text has been written for this race yet.

Quick Facts

  • Entrance Cost: Unknown
  • Organiser: Coastal Trail Runners
  • Start Town: East Suffolk
  • Dogs Allowed: Unknown
  • Start Date: 15 May 2027
  • End Date: 16 May 2027
  • Start Time: 7:00 AM
  • Final Cut-off: 32h

Navigation

  • Type: Unknown
  • Closest Train Station: Wickham Market
  • Distance from Start Line: 4.2 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 trail (38%) and gravel (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. The longest unbroken stretch is 7.4 km of trail. Climbs are mostly on trail, though the surface varies across the ascents. Descents share the same trail surface, so careful footing on the uphills also carries through on the way down.

Five Rivers Ultra - 100 Mile has 56.8 km of trail / path, this is in the top 9% of all our races.

  • Trail / Path38% · 56.8 km
  • Gravel / Track22% · 32.1 km
  • Grass21% · 31.1 km
  • Off-road / Unknown12% · 17.6 km
  • Paved Road5% · 9.1 km
  • Sand2% · 2.5 km

Compared against 12 other races of a similar distance, Five Rivers Ultra - 100 Mile has more total elevation gain than 17% of them, and more elevation gain per kilometre than 17% of them — significantly flatter than typical for its distance.

Gradient

2.37%

Average climb gradient

Do you have experience of gentle climbs like Five Rivers Ultra - 100 Mile's, which average 2.37%?

Five Rivers Ultra - 100 Mile's climbs average 2.37%. If your training never rehearses sustained climbing at that gradient, race day will be the first time your legs meet it.

0.74%

Average descent gradient

Do you have experience of gentle descents like Five Rivers Ultra - 100 Mile's, which average 0.74%?

Five Rivers Ultra - 100 Mile's descents average 0.74%. If your training never rehearses sustained descending at that gradient, the downhills will empty your quads long before the finish.

Climate

Pacing Complexity

Five Rivers Ultra - 100 Mile scores 29/100 for pacing complexity, rated moderate.

Similar-distance races score a median of 46/100 (5 races compared).

Five Rivers Ultra - 100 Mile 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.

Aid Stations

No aid station data available for this race yet.

Night Running

Five Rivers Ultra - 100 Mile starts at 07:00 local time, with sunset around 20:41. Based on the median finisher time of 27:46:07, a runner at that pace would finish around 10:46 — after dark, spending around 8h 20m (30% of their race) running in darkness and covering roughly 51.0 km of the course after sunset.

37m28m18m9m-1m0 km169.0 km

Shaded stretches are expected to be run in the dark

Are you ready for Five Rivers Ultra - 100 Mile?

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.