Martin Truex Jr. posted the fastest lap in Friday’s opening Cup practice at Sonoma Raceway. Truex had a lap of 94.587 mph.
Matt Kenseth had a motor issue after the oil pump belt went off. His team will change motors. He will start at the rear of the field Sunday.
Cup teams have another practice remaining today. They’ll practice from 6:30 – 7:55 p.m. ET.
Qualifying will be Saturday.