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.
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 29-year-old Blaney from High Point, North Carolina, led eight of 188-scheduled laps and beat Kevin Harvick by 0.012 seconds to grab his second Cup Series victory of 2023 and transfer into the Playoff's Round of 8.
The 2018 Craftsman Truck Series champion from Grimes, Iowa, led 22 of 99 over-scheduled laps and regained the lead on the final lap amid an overtime shootout to notch his first Truck victory in three seasons and first driving for Front Row Motorsports.
The 25-year-old Byron from Charlotte, North Carolina, led the final six of 267-scheduled laps and overtook pole-sitter Bubba Wallace during a six-lap shootout to notch his sixth Cup victory of the 2023 season and deliver a milestone victory for Hendrick Motorsports.
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 29-year-old Blaney from High Point, North Carolina, is primed to achieve a milestone start in his eighth full-time season in NASCAR's premier series.
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 21-year-old Heim from Marietta, Georgia, overtook Christian Eckes with six laps remaining to become the first Playoff competitor to transfer to this year's Championship 4 round by winning at Thunder Valley.
