Breaking2
After six months of scientifically advanced training, three of the world's most elite distance runners set out to break the two-hour marathon barrier. These pioneers go on a global trek to defy the unthinkable and break the two-hour feat, from testing in wind tunnels and running labs in the United States, to balancing training with their day-to- day lives in eastern Africa, to the final heart-pounding race in Italy.
- Year : 2017
- Country : United States of America
- Genre : Documentary
- Studio : National Geographic
- Keyword : marathon, world record, professional athlete
- Director : Martin Desmond Roe
- Cast : Eliud Kipchoge, Zersenay Tadese, Lelisa Desisa