What won the race: Fourth-starting A.J. Diemel of Elk Mound, Wis., extended his lead in the Wollak Construction WISSOTA Challenge Series point standings with the $2,000 victory in Friday's WISSOTA Classic at Grand Rapids Speedway. Outrunning Pat Doar and Jake Redetzke, Diemel recorded his 15th career series victory.

Key notes: Grand Rapids Speedway hosted its 25th annual WISSOTA Classic, the second night of a four-race weekend for the Wollak Construction WISSOTA Challenge Series. … The tour kicked off the weekend Thursday at Proctor (Minn.) Speedway. … It was the tour’s third visit ever to Grand Rapids and first since 2012.

On the move: Travis Budisalovich of Minneapolis, Minn., started 22nd and finished seventh.

Winner's sponsors: Diemel's MB Customs Race Car is sponsored by Beltline Body Shop, Southworth Chevrolet, White City Glass, Badger Storage and Excavating and Deppe Enterprises.

Points chase: Entering the weekend, A.J. Diemel (727 points) led Pat Doar (698), Jesse Glenz (677), Jake Redetzke (657) and Chad Mahder (648).

Current weather: Clear, 46°F

Car count: 25

Polesitter: Pat Doar

Heat race winners: Cole Provinzino, A.J. Diemel, Darrell Nelson,  ,  ,  ,  ,