Endurancelife CTS Sussex
Chalk and forest above Eastbourne.
| Distance | Ascent | Per km |
|---|---|---|
| 52.3 km Ultra | 1,518 m | 29 m |
| 42.2 km Marathon | 1,200 m | 28 m |
| 21.1 km Half Marathon | 619 m | 29 m |
| 10K | 387 m | 38 m |
Nobody has reviewed this one yet
No reviews of the CTS Sussex, 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 · E2·T2
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
Eastbourne and the Seven Sisters — the white chalk cliffs, and the rolling downland behind them, with the Channel out to one side the whole way. Chalk and forest, rated strenuous: the marathon carries 4,196 ft and the ultra 5,266 ft, which for the South Downs is a lot, and it comes in the repeated drops and climbs over the Sisters. Fully marked, no navigation.

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How to enter
Sat, 6 Mar 2027 · 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 Sussex offers 4 distances: 10K (6.2 miles), Half Marathon (21.1 km / 13.1 miles), Marathon (42.2 km / 26.2 miles), Ultra (52.3 km / 32.5 miles).