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 two-time NASCAR national touring series championship-winning crew chief from Winston-Salem, North Carolina, will reunite with RCR for the first time since 2019 to lead newcomer Jesse Love and the No. 2 team for the upcoming Xfinity season.
This weekend the NASCAR Cup Series and Xfinity Series travel to Martinsville Speedway to set the field for the Championship 4 Playoffs. Cup Series winners Kyle Larson (Las Vegas Motor Speedway) and Christopher Bell (Homestead-Miami Speedway) have secured their spot in the Playoffs.
The 2023 ARCA Menards Series champion from Menlo Park, California, will replace Sheldon Creed as the driver of RCR's No. 2 entry for the 2024 Xfinity Series season.
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 24-year-old Herbst from Las Vegas, Nevada, led a race-high 103 of 201-scheduled laps and beat runner-up John Hunter Nemechek by more than 15 seconds to claim his first Xfinity career victory in his 139th series start.
The 2020 Truck Series champion from Alpine, California, will not return to RCR for the 2024 Xfinity Series season despite currently remaining in contention in this year's Xfinity Playoffs.
This weekend the NASCAR Cup Series and the Xfinity Series travel to Las Vegas Motor Speedway as the Playoffs continue with the first race in the Round of 8.
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.
