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Dark Downs 50k, Half Marathon and 20 miles2026

03.10.2026Lewes (United Kingdom)
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Pacing, fueling and crew sheet for the course you pick

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3 courses · 21–50 km · up to 1’200 m D+

3 courses

  1. 21km

    600 m D+

    avg 3%

    Dark Downs Half Marathon

    03.10.

    UTMB Index 20K
  2. 32km

    732 m D+

    avg 2%

    Dark Downs 20 miles

    03.10.

    UTMB Index 20K
  3. 50km

    1’200 m D+

    avg 2%

    Dark Downs 50k

    03.10.

    UTMB Index 50K

GPX trace not yet published.

Race plan

Plan your race from start to finish.

Pacing, aid stations and fueling timed to your effort on Dark Downs 50k, Half Marathon and 20 miles, in one roadbook.

The race

The Dark Downs 20 mile is a beautiful route in a stunning location, through the South Downs National Park. It is an achievable single loop trail race that is a great option for first time trail runners and, also a great way to prepare for longer events later in the year.

Where to stay

Find a place to stay near Lewes for the race.

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