The 2021 New Holland 250 was the 22nd stock car race of the 2021 NASCAR Xfinity Series season, and the 29th iteration of the event. The race was held on Saturday, August 21, 2021 in Brooklyn, Michigan at Michigan International Speedway, a 2 miles (3.2 km) D-shaped oval. The race was extended from its scheduled 125 laps to 139, after three NASCAR overtime attempts. A. J. Allmendinger would survive the chaotic race and win, his third of the year and his 8th overall career win in the NASCAR Xfinity Series. Brandon Jones of Joe Gibbs Racing and Noah Gragson of JR Motorsports would score the rest of the podium positions, finishing 2nd and 3rd, respectively.