NASCAR veteran AJ Allmendinger bested a field of the sport’s best young talents, leading the final 37 laps of Saturday afternoon’s Xfinity Series EchoPark 250 at Atlanta Motor Speedway. Making the run more impressive, Allmendinger rallied from a 30th place starting position.https://twitter.com/NASCAR_Xfinity/status/1269425978591383552Noah Gragson, last week’s Bristol race winner, finished runner-up...