Returning to the Los Angeles Memorial Coliseum for the third consecutive year, weather unfortunately threw a wrench into the weekend plans. With heavy rain looming, NASCAR made the decision to condense the schedule into a one-day show on Saturday. With practice in the afternoon, William Byron and the No. 24 team showed long-run speed, ending up fourth on the speed charts. Using the final practice lap times to set the field, Byron secured a sixth-place starting position for the Clash at the Coliseum.
When the green-flag flew for the 150-lap event shortly after practice, Byron quickly moved himself into the top-five running order, taking over fourth for the first 40 laps. As the run went on, the 26-year-old driver started to fight a loose No. 24 Chevrolet Camaro ZL1, dropping to fifth. However, just before the halfway break, the caution came out allowing the field to restack. Lining up fifth, Byron made a power move to pick up one position to fourth by the time the yellow was displayed again for the break. During the pause in racing, crew chief Rudy Fugle made the call for four tires, fuel and various chassis and air pressure adjustments to aid in the handling of the No. 24.
The field went back green on lap 76 but a couple quick consecutive cautions kept the racing close. Restarting fourth, Byron was put three-wide forcing him to make contact with the wall and fall back to eighth. As the run went on, Byron still struggled with the handling of his No. 24 Chevy, running ninth with 50 laps to go. As the green-flag run continued, Byron moved himself back to eighth just as the caution came out with 10 laps remaining. When the field went back green, intensity hit a new high with three-wide racing throughout the pack. Byron did his best to make up ground but ultimately suffered damage in an on-track incident that brought out the caution on lap 145. Able to continue on, Byron lined up eighth for the five-lap shootout before ultimately crossing the finish line in 10th.