Marathon-Men: extreme Vielfahrer

Extreme Leistungen: Faszination MTB-Vielfahrer

Die Marathon Harley: The Motorcycle - Kurzporträt von Peter und Kay Forwood

Former London Marathon winner Daniel Wanjiru gets four-year ban for doping

Extreme endurance Half Marathon from Matti Gawran to Margan Top in Sub-Zero Conditions

Extreme endurance Half Marathon from Matti Gawran to Margan Top in Sub-Zero Conditions

How an ultra-marathon runner is training for an extreme 230km Arctic race inside a fridge

Marathon-Men: extreme Vielfahrer

LIST: The top 10 fastest male marathoners in the world - Pulse Sports Kenya

Marathon world record progression - Wikipedia

Exhausted male Marathon runner (editorial only Stock Photo - Alamy

How an ultra-marathon runner is training for an extreme 230km Arctic race inside a fridge

AIU announce sanction for long-distance runner Shafar from 2017