Key notes: Nick Hoffman slowed and retired with engine woes while running second late in the second heat. ... Trey Mills hit the turn-two fence early in the second heat. ... Tyler Erb debuted at Southern Iowa by lowering the track record, but finished third in the first heat after starting on the pole. ... The World of Outlaws Late Model Series continues its Hawkeye State stretch with Wednesday’s 35-lap, $12,000-to-win Corn Belt Showdown in its debut at Southern Iowa Speedway. … Points leader Bobby Pierce is fresh off a $25,000 victory in Saturday’s Hawkeye 100 finale at nearby Maquoketa (Iowa) Speedway. Pierce was a two-time winner last week, including Aug. 18 at Marshalltown (Iowa) Speedway. … Hudson O’Neal was also a two-time winner last week in the Hawkeye State, earning a $20,000 payday Aug. 19 at Mason City Motor Speedway and Friday’s $12,000 Hawkeye 100 opener in the Rumley Engineering No. 6. … Tad Pospisil of Norfolk, Neb., fresh off Saturday’s $5,000 Revival-Heartland co-sanctioned victory at Salt City Speedway in Hutchinson, Kan., topped June’s Malvern Bank East Series visit to Southern Iowa, worth $3,000. … Modifieds, stock cars and hobby stocks are on the undercard. … Pits open at 2 p.m. and grandstands open at 4 with hot laps at 6:45. … Watch live on DIRTVision.

Who to watch: Bobby Pierce of Oakwood, Ill., seeks his second straight WoO feature victory and 20th of the season.

Points chase: Before Southern Iowa: 1. Bobby Pierce (6,074); 2. Nick Hoffman (5,961); 3. Tyler Erb (5,712); 4. Tim McCreadie (5,652); 5. Ryan Gustin (5,550); 6. Ethan Dotson (5,431); 7. Daulton Wilson (5,340); 8. Trey Mills (5,307); 9. Dennis Erb Jr. (5,293); 10. Dustin Sorensen (5,159).

Expected entrants: Among drivers joining the top 10 in series standings: Dylan Thornton, Chris Simpson, Dallon Murty, Chad Simpson, Clay Stuckey, Justin Duty, Derrick Stewart, Tristan Chamberlain, Logan Zarin, Andrew Kosiski, Brent Larson, Eli Johnson, Curt Schroeder, Matthew Larson and more.

Current weather: Sunny, 77°F

Car count: 23

Fast qualifier: Tyler Erb

Time: 17.477 seconds

Heat race winners: Ryan Gustin, Ethan Dotson, Dustin Sorensen

Next series race: August 28, Adams County Speedway (Corning, IA) $20,000