The 29-year-old Hill from Winston, Georgia, led nine of 120-scheduled laps and rallied from three different circumstances to three-peat the Xfinity Series' season-opening event at Daytona.
The 25-year-old Custer from Ladera Ranch, California, led a race-high 96 of 202 over-scheduled laps and capitalized on an overtime shootout to win the finale in the desert state and become the 33rd different competitor to win an Xfinity Series championship.
The 37-year-old Allgaier from Riverton, Illinois, led 21 of 256 over-scheduled laps and went from third to first on the final lap amid an overtime shootout to claim his fourth Xfinity victory of 2023 and race his way into the Championship 4 round.
The 20-year-old Mayer from Franklin, Wisconsin, led 46 of 200-scheduled laps and capitalized on a late-race restart with 23 laps remaining to race his way into the Championship 4 with his fourth Xfinity victory of 2023 at Miami.
The 20-year-old Mayer from Franklin, Wisconsin, led a race-high 50 of 67-scheduled laps and raced his way into the Playoff's Round of 8 by notching a dominant, "walk-off" victory at the Charlotte Roval.
The 26-year-old Nemechek from Mooresville, North Carolina, led 38 of 200 laps and benefitted from a late skirmish involving Allgaier and Kligerman to snatch the lead with six laps remaining and secure his spot for the Playoff's Round of 8 by winning at the Lone Star state.
The 37-year-old Allgaier from Riverton, Illinois, led a race-high 110 of 300 laps and executed during a 44-lap dash to the finish on fresh tires to fend off Daniel Hemric, win at Thunder Valley and become the first Xfinity competitor to transfer to the Playoff's Round of 8.
The 26-year-old Nemechek led a race-high 154 of 200 laps and capped off the regular-season stretch with his sixth Xfinity victory of the 2023 season in dominant fashion.