Wolfgang Olbrich, born 1968, is himself a passionate ultra distance runner and has completed more than 70 ultra distance races since the Biel 100km in 2001, as well as successfully finishing over 50 Marathons. These races have ranged from 50km races, various multi-day races, to the Spartathlon (raced over 153 miles with a maximal time limit of 36 hours).
The author is a German Athletics Federat...