Endurancelife CTS Dorset
The Jurassic Coast from Swanage. Graded Extreme.
| Distance | Ascent | Per km |
|---|---|---|
| 52 km Ultra | 1,134 m | 22 m |
| 42.2 km Marathon | 1,018 m | 24 m |
| 21.2 km Half Marathon | 445 m | 21 m |
| 10K | 176 m | 17 m |
Nobody has reviewed this one yet
No reviews of the CTS Dorset, 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
HARD
TRP grade · E2·T3
Start time not confirmed yet — check with the organiser.
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
Out of Swanage along the Jurassic Coast, a World Heritage stretch where the cliffs run through a few million years of geology with the sea underneath the whole time. Endurancelife rate the terrain extreme, which for a coast path means the climbs come one after another rather than being long. Four distances from 10K to an ultra of 32.3 miles with 4,416 ft of climb. Fully marked, no navigation.

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How to enter
Sat, 5 Dec 2026 · Entries open
Enter on their website ↗Entries are handled by Endurancelife, not by us. We take nothing for sending you there.
Add to your calendar · as an all-day entry, until the start time is confirmed
Common questions
- The CTS Dorset offers 4 distances: 10K (6.2 miles), Half Marathon (21.2 km / 13.2 miles), Marathon (42.2 km / 26.2 miles), Ultra (52.0 km / 32.3 miles).