Skruen Opp is a short uphill race at Voll in Rennebu, Trøndelag, held in June. The course spans approximately 1.5 km and gains about 350 meters in elevation, making it a steep climb from start to finish, unlike a typical road race.
The event includes timed classes for women and men, alongside an untimed "trim" class for those who prefer to participate without competitive timing. Start lists and results are published by the organizers. The top woman and top man each receive a 1000 NOK gift card. The race is described locally as Rennebu's most spectacular uphill run, reflecting its straightforward format: a demanding climb, a definitive winner, and space for casual runners.