Rinne Framed Art Print — superman —

The hour record is a race to see how far you can run in an hour. It is a battle against aerodynamic drag. There have been many different aero positions throughout history.
The bottom two are styles that Graham Obree came up with on his own and even made a bike for it (the middle one is called the Superman position). The top one is the latest style.(2019 Campenaerts)