How far is the CTS Dorset?

The CTS Dorset offers 4 distances: 10K (6.5 miles), Half Marathon (21.2 km / 13.2 miles), Marathon (42.2 km / 26.2 miles), Ultra (52.0 km / 32.3 miles).

How much climbing is in the CTS Dorset?

The 10K has 236 m of ascent. The Half Marathon has 524 m of ascent. The Marathon has 1,139 m of ascent. The Ultra has 1,346 m of ascent.

Swanage, Dorset

Endurancelife CTS Dorset

Sat, 5 Dec 2026

The Jurassic Coast from Swanage. Graded Extreme.

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What runners wore

Nobody has told us what they wore on the CTS Dorset yet. It is the thing most runners want to know before they enter, and no organiser publishes it.

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Pick your distance

10.5

km · 6.5 mi

236

m ascent

Start time not confirmed yet — check with the organiser.

Terrain and trail

grasscliff

Reviews

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How to enter

Sat, 5 Dec 2026 · Entries open

No entry link yet. Check Endurancelife’s site ↗

Common questions

: The CTS Dorset offers 4 distances: 10K (6.5 miles), Half Marathon (21.2 km / 13.2 miles), Marathon (42.2 km / 26.2 miles), Ultra (52.0 km / 32.3 miles).
: The 10K has 236 m of ascent. The Half Marathon has 524 m of ascent. The Marathon has 1,139 m of ascent. The Ultra has 1,346 m of ascent.
: Not graded yet. A TRP grade is worked out from distance and climb measured off the course file, and there isn't one for the CTS Dorset yet.
: We haven't confirmed the marking on the CTS Dorset with Endurancelife. Check their race information before you enter rather than assuming it either way.
: We don't hold a compulsory kit list for the CTS Dorset. Endurancelife confirm mandatory kit in their race information, usually in the final instructions.
: We don't hold published time limits for the CTS Dorset. If Endurancelife set cut-offs, they'll be in the race information.
: We don't hold a checkpoint list for the CTS Dorset. What's on the table varies a lot between races, so check the Endurancelife race information rather than turning up expecting food.
: Not yet — we don't hold a course file for the CTS Dorset. Some organisers only send the GPX to entrants. If we get one, it goes up free, with no sign-up.
: Sat, 5 Dec 2026. Entries open.