Lookint at google maps, it says he has 875 miles left and 15.6 days left to do it so that's only 556 miles a day. But if he can't run interestates, it's going to be more miles I assume. How many miles exactly are left.
Oh, don't worry, that dude can run on interstates. Doesn't faze him in the least. He's tough. Any 18 wheeler doesn't see him in his black ninja night running outfit would just bounce right off anyway.
https://www.facebook.com/marathonmanuk/videos/1025912397493018/