Athletes compete in 2017 Columbus Marathon

COLUMBUS, Ohio - The Nationwide Children's Hospital Columbus Marathon started early Sunday morning.About 18,000 athletes took to the streets at 7:30 a.m. to cover the 26.2 mile course.And they're off! It's time to crush 13.1 or 26.2! #CbusMarathon pic.twitter.com/rmU3dyjwg2— Columbus Marathon (@CbusMarathon) October 15, 2017 And it's underway! @10TV pic.twitter.com/gOM6GKLcll— Bryant Somerville (@Bryant10TV) October 15, 2017The event is the largest marathon in the state of Ohio.Click