The 41-year-old Allmendinger from Los Gatos, California, led a race-high 46 of 109 laps and survived four caution and restart attempts before fending off a hard-charging Byron to claim his first Cup victory of the 2023 season at the Charlotte Roval.
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.
Hendrick Motorsports will cap off the 2023 season by adding Said and Caruth to its driver lineup of the No. 17 entry for two of the remaining five Xfinity scheduled events.
The 27-year-old Bell from Norman, Oklahoma, capitalized on a late strategic call for fresh tires followed by two late-race restarts and a series of carnages to punch his ticket into the Round of 8.
The 40-year-old Allmendinger from Los Gatos, California, led a race-high 25 of 72 over-scheduled laps and prevailed through two overtime attempts to claim his fourth consecutive Xfinity victory at the Roval.
The National Motorsports Appeals Panel amended the points penalty issue to Byron while increasing the fine amid his on-track incident with Denny Hamlin at the Lone Star state in September.
The Los Gatos, California, native became the winningest Xfinity Series competitor on road courses by winning the Playoff's Round of 8 finale at the Roval.
The Dawsonville, Georgia, native survived a slick, cloudy afternoon of racing by winning at the Charlotte Roval and securing a spot in the Round of 8 in the 2020 NASCAR Cup Series Playoffs.