Key notes: Thunderbird Speedway hosts the third annual Hayden Ross Memorial, a special for Ross Foundation Sooner Late Model Series competitors. … The event features $6,600-to-win main events each night. … Teenager Eli Ross of Muskogee, Okla., will be piloting the Rocket Chassis owned by his parents, Brady and Liz Ross. Eli is the younger brother of Hayden Ross who tragically died in October of 2022, at the age of 20 and was posthumously crowned the 2022 Sooner Series champion; Ross won his last race on Sept. 30, 2022, at Thunderbird, the track promoted by their father. … Eli won April’s $1,000 Sooner Series stop. … National Dirt Late Model Hall of Famer Billy Moyer of Batesville, Ark., outdueled Logan Martin to win 2023’s inaugural Ross Memorial, worth $6,600. … Hudson O’Neal of Martinsville, Ind., won last year’s Ross Memorial at Thunderbird, but he is not expected to compete. … Brett Hansen of Fort Gibson, Okla., added a $1,000 Sooner Series win last fall after winning $1,000 there in May of 2023. … A fireworks show will be held at intermission. … Modifieds, B-mods and factory stocks are on the undercard, nightly. … Pits open at 4 p.m. and grandstands open at 6:30, with racing at 8. … Practice was held Thursday.

Who to watch: Billy Moyer of Batesville Ark., seeks his second Hayden Ross Memorial victory in the last three years at Thunderbird.

Points chase: Before Thunderbird Friday: 1. Dan Smith (2,452); 2. Delbert Smith (2,450); 3. Eric Brill (1,885); 4. Steve Hewitt (1,795); 5. Colby Moore (1,740).

Expected entrants: Billy Moyer, Eli Ross, Brett Hansen, Kip Hughes, Delbert Smith, B.J. Robinson, Dan Smith, Dusty Leonard, Colby Moore, Jeff Roth, Logan Martin, Andy Bryant, Austin Vincent, Eric Brill, Steve Hewitt, Damian Patocka, Dakota Dellinger, Joe Gorby and others.

Current weather: Overcast, 77°F

Car count: 11

Next series race: June 28, Thunderbird Speedway (Muskogee, OK) $6,600