Endurancelife CTS Suffolk
Forest, heath and beach out of Dunwich.
| Distance | Ascent | Per km |
|---|---|---|
| 52.6 km Ultra | 145 m | 3 m |
| 43 km Marathon | 121 m | 3 m |
| 21.7 km Half Marathon | 65 m | 3 m |
| 10K | 38 m | 4 m |
Nobody has reviewed this one yet
No reviews of the CTS Suffolk, and nothing on what people wore. Both are things no organiser publishes and every runner wants before they enter — how it actually went, and what was on your feet.
Ran it? Write the first reviewRunning it soon? Connect Strava and we will ask you about it the day you finish, so you do not have to remember to come back.
Pick your distance
MODERATE
TRP grade · E1·T2
This file is from a previous running and the course may have changed since. If you are navigating with it, get the current version from Endurancelife first.
What you’re in for
Dunwich, and by Endurancelife's own description extremely flat by their standards — the 32-mile ultra has 1,129 ft of climb, which is less than the Exmoor 10K. Forest, moorland, grass and beach through a quiet stretch of the Suffolk coast. If you want to know what you can actually run over an ultra distance without the ground taking it out of you, this is the one in the series that tells you. Fully marked, no navigation.

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How to enter
No date announced for the next running yet. Endurancelife’s site ↗ is where it will show up first.
Common questions
- The CTS Suffolk offers 4 distances: 10K (6.2 miles), Half Marathon (21.7 km / 13.5 miles), Marathon (43.0 km / 26.7 miles), Ultra (52.6 km / 32.7 miles).