What won the race: Completing a special father-son sweep, hometown driver Jimmy Mars fought off MB Customs compatriot A.J. Diemel on Friday at Red Cedar Speedway for a Wollak Construction WISSOTA Challenge Series victory. Mars, who earned $5,555 for his third straight Duane Mahder 55 victory, won on the same night his 15-year-old son Sam Mars won his first Limited Late Model feature.

Key notes: Leading every lap, Mars is the seventh series winner in seven series races. ... He's won the last three series events at Red Cedar and has eight career series victories overall. ... Runner-up A.J. Diemel took that spot from Lance Matthees after the halfway fuel stop and challenged Mars late. ... Pat Doar ran as high as third but got too high a late restart and ended up seventh. ... The late Duane Mahder’s mother was among family members in the grandstand. It was her 90th birthday and the grandstand united to sing her the Happy Birthday Song. ... Sam Mars outran Kyle Johnson and Lance Hofer in the Limited Late Model feature before his father's victory.

On the move: Chad Mahder of Eau Claire, Wis., running in the event honoring his late father, started 12th and finished fourth.

Winner's sponsors: Mars drives an MB Customs machine powered by a Pro Power Racing Engine and sponsored by Deppe Enterprises, T.L. Sinz Plumbing, Keyes Chevytown, Baileigh Industrial, Mid-States Equipment, S&S Transport, Schill Construction, Moore Wireline and CMD.

Points chase: Entering the event, A.J. Diemel (514) of Elk Mound, Wis., led Jesse Glenz (497), Pat Doar (497), Jake Redetzke (484) and John Kaanta (476) in series points.

Current weather: Clear, 61°F

Car count: 29

Polesitter: Jake Redetzke

Heat race winners: Jimmy Mars, John Kaanta, Jesse Glenz,  ,  ,  ,  ,  

Consolation race winners: Justin Ritchie,  ,  ,  

Provisional starters: Jeff Massingill,  ,  ,  

Next series race: August 23, Ogilvie Raceway (Ogilvie, MN) $2,000