^Martin and Gynn note Michelsen's date of birth as December 16, 1893,[1] as do the Association of Road Racing Statisticians.[2] Sports-reference.com notes his date of birth as August 5, 1893.[3]
^According to the Association of Road Racing Statisticians, Fusashige Suzuki's 2:27:49 performance occurred in Tokyo on March 21, 1935, during a race in which he finished second to Sohn Kee-chung (sometimes referred to as Kee-Jung Sohn or Son Kitei) who ran a 2:26:14.[5]
^In Japan, this marathon course was not recognized officially by Japan Association of Athletic Federations.[6]