Starting in Eastbourne, runners will climb Beachy Head and the Seven Sisters before following the South Downs Way to Brighton. From there, you will face Devil's Dyke and a few more ups and downs before finishing in historic Arundel.
Pick the full 100km challenge or choose 55km, 45km or 25km routes. You can walk, jog or run.
Why not see what other challenges are on offer? Visit the Ultra Challenge Series website.