Man Runs 365 Marathons in 365 Days 20.62K Max Read 02/07/11 02:12AM Filed to: Exercise Exercise Stefaan engels runners marathons Health Fitness Appic On Saturday, 49-year-old Belgian runner Stefaan Engels completed his 365th marathon. In a row. That's 9,569 miles in seven different countries, averaging about four hours a marathon. Dude: There are easier ways to get book deals.