NASCAR Xfinity Iowa: Sam Mayer holds off Riley Herbst in OT for win

Mayer and his No. 1 JR Motorsports team were among the slowest cars in Friday’s practice, but you couldn’t tell in the race as he seemed to get stronger as the race went on.Mayer ran down Riley Herbst to take the lead with seven of the original 250 laps remaining, but the race went into overtime due to a late caution when John Hunter Nemechek hit the wall with a cut tire following a run-in …Keep reading