High Peak Running BLOG

1. Race Overview & Context What is the OCC? OCC is one of the Finals races in the UTMB World Series. It is essentially the “shorter ultra” (mid-distance ultra) final, sitting between the lottery-accessible 20 km and the longer CCC / UTMB races. montblanc.utmb.world +1 For 2026, OCC is listed as ~57 km with ~3,500 m of positive elevation gain. The maximal allowed race time is long (~ 14h 30m as of the 2026 edition) to account for technical terrain, weather, and altitude effect