Allgaier holds off Truex to win Atlanta Xfinity race

NASCAR driver Justin Allgaier celebrates after a win after a NASCAR Xfinity Series at Atlanta Motor Speedway on Saturday, March 20, 2021, in Hampton, Ga. (AP Photo/Brynn Anderson)

Martin Truex Jr. drives during a NASCAR Xfinity Series at Atlanta Motor Speedway on Saturday, March 20, 2021, in Hampton, Ga. (AP Photo/Brynn Anderson)

NASCAR driver Justin Allgaier crosses the finish line and wins a NASCAR Xfinity Series at Atlanta Motor Speedway on Saturday, March 20, 2021, in Hampton, Ga. (AP Photo/Brynn Anderson)

NASCAR driver Justin Allgaier celebrates after a win after a NASCAR Xfinity Series at Atlanta Motor Speedway on Saturday, March 20, 2021, in Hampton, Ga. (AP Photo/Brynn Anderson)

NASCAR driver Justin Allgaier celebrates after a win after a NASCAR Xfinity Series at Atlanta Motor Speedway on Saturday, March 20, 2021, in Hampton, Ga. (AP Photo/Brynn Anderson)

NASCAR driver Justin Allgaier poses with a trophy after he wins a NASCAR Xfinity Series at Atlanta Motor Speedway on Saturday, March 20, 2021, in Hampton, Ga. (AP Photo/Brynn Anderson)

Martin Truex Jr., drives during a NASCAR Xfinity Series at Atlanta Motor Speedway on Saturday, March 20, 2021, in Hampton, Ga. (AP Photo/Brynn Anderson)

NASCAR driver Justin Allgaier celebrates after a win after a NASCAR Xfinity Series at Atlanta Motor Speedway on Saturday, March 20, 2021, in Hampton, Ga. (AP Photo/Brynn Anderson)

NASCAR driver Justin Allgaier, left, celebrates with his team after a win after a NASCAR Xfinity Series at Atlanta Motor Speedway on Saturday, March 20, 2021, in Hampton, Ga. (AP Photo/Brynn Anderson)

NASCAR driver Justin Allgaier pulls in to victory lane after a win after a NASCAR Xfinity Series at Atlanta Motor Speedway on Saturday, March 20, 2021, in Hampton, Ga. (AP Photo/Brynn Anderson)