Ambetter Health 302 2024 Starting Lineup: The Ambetter Health 302 at Las Vegas Motor Speedway is shaping up to be a crucial event for NASCAR’s Xfinity Series. Brandon Jones has clinched pole position, clocking an impressive lap time of 29.439 moments. This cutthroat competition has top contenders like Cole Custer and Chandler Smith closely trailing, with mere fractions of a moment separating the top four drivers.