Key notes: The Ultimate Heart of America and Ultimate Southeast Super Late Model Series converge at Richmond Raceway for Saturday’s $12,059-to-win 39th annual VP Racing Fuels Butterball Wooldridge Memorial. … The event honors National Dirt Late Model Hall of Famer Paul “Butterball” Wooldridge of Frankfort, Ky., a longtime racer and supporter of Richmond Raceway; Wooldridge died on Christmas Day in 1987 at the age of 56. … Mike Marlar of Winfield, Tenn., led all 50 laps of Friday’s $10,000 Ultimate HofA-sanctioned weekend opener at nearby Rockcastle Speedway in Mount Vernon, Ky.; Marlar is a four-time Butterball winner (2004, ’09, ’15, ’20) at Richmond, earning more than $40,000. … Michael Chilton of Salvisa, Ky., has six career Richmond specials since 2019, including April’s Ultimate HofA Series visit, combining to collect more than $35,000. … Camaron Marlar of Winfield, Tenn., topped 2024’s Butch Shay Memorial there, worth $7,500 on the HofA tour. … Zack Dohm of Cross Lanes, W.Va., has nine major wins in the last 10 years at Richmond, including 2021’s Butterball Memorial, worth more than $66,000 over that span. … The Ultimate Pro Late Model Series ($2,059-to-win), modifieds and Crown Vics are on the undercard. … Pits open at 2 p.m. and grandstands open at 4 with hot laps at 6. … Watch live on Pit Row TV.

Who to watch: Mike Marlar of Winfield, Tenn., seeks the Ultimate Series weekend sweep and his fifth career Butterball Memorial.

Points chase: Ultimate HofA before Richmond: 1. Larry Martin Jr. (151); 2. Daniel Shelton (149); 3. Cyle Forgy (83); 4. Richard Musick (75); 5. Rusty Schlenk (67). Ultimate SE before Richmond: 1. Jason Riggs (268); 2. David Yandle (219); 3. Jadon Frame (166); 4. Dillard Hatchett (98); 5. Jamison McBride (93).

Expected entrants: Mike Marlar, Michael Chilton, Zack Dohm, Cody Overton, Tanner English, Camaron Marlar, Jadon Frame, David Webb, Skylar Marlar, Dustin Linville, Jason Riggs, Cyle Forgy, Josh Dietz, Larry Martin Jr., Shayne Bailey, Mike Hildebrand, Daniel Shelton, Logan Walls, Jeff Watson, Kenneth Howell, Shawn Martin, Richard Musick, David Yandle and more.

Next series race: September 19, Paducah International Raceway (Paducah, KY) $5,000