On Saturday, three runners will try to break what seems like an impossible barrier. They will try to run a marathon in under two hours, which would be nearly three minutes faster than the current record time for men.
The Breaking2 project is sponsored by Nike, and the race will be specially set up for the record attempt. Nike, Wired and Runner's World will have livestreams of the event.
This article was originally published on May 03, 2017.
This segment aired on May 3, 2017.