Dolf Jansen is a runner in the race events that have what official length?
Dolf Jansen Dolf Jansen (born 25 June 1963 in Amsterdam) is a Dutch comedian, presenter of the Radio 2 program "Spijkers met Koppen" and an active Marathon runner. On television Jansen presented "Loods 6" (1991), "Kunstbende" (1992), "Jansen slaat door" (TROS) (1993) and "Jansen op jacht" (2007).
Berlin Marathon The Berlin Marathon (branded BMW Berlin Marathon for sponsorship reasons) is a major running and sporting event held annually in Berlin, Germany. The official marathon distance of 42.195 kilometers (26 miles 385 yards) is set up as a citywide road race where professional athletes and amateur runners jointly participate. Initiated in 1974, the event traditionally takes place on the last weekend in September.