Contact from Sam Mayer jostled Kyle Larson's car on final restart, opening the door for Justin Allgaier to win back-to-back Xfinity races.

With eight laps to go, Kyle Larson was in his own zip code at Homestead-Miami Speedway, 16 seconds ahead of second-place runner Sam Mayer in the late stages of Saturday’s NASCAR Xfinity Series race.A caution changed everything — as did the overtime restart that followed.

HOMESTEAD, Fla. -- Kyle Larson is tired of his weekends at Homestead-Miami Speedway ending in disappointment. The Hendrick Motorsports driver has won a NACAR Cup Series race and Xfinity Series race in his career at the South Florida track, but he mostly just remembers the heartbreaks there.