Welcome to the Racing America On SI Live Race Updates page for the 2025 NASCAR Cup Series Iowa Corn 350 Powered by Ethanol at Iowa Speedway. Be sure to refresh ...

Jamie Lee Curtis calls out Stephen Colbert for being 'in love with' her husband Christopher Guest: 'I'm fine with it' Top ...

William Byron used a flurry of cautions to stretch his fuel over the final 140 laps to win Sunday's NASCAR Cup Series race at Iowa Speedway.

For the second straight year a corn drawing behind Iowa Speedway welcomed visitors to the track in the middle of a corn field.

William Byron took his second win of the 2025 NASCAR Cup Series season in dramatic fashion as he was running on fumes in the closing laps of Sunday's Iowa Corn ...

William Byron utilized fuel strategy to claim his second NASCAR Cup Series win of the season at Iowa Speedway Sunday evening.

Joe Gibbs Racing driver Chase Briscoe gives his side of explanation after his third runner-up finish in the last four weeks.

Hear from William Byron, Ryan Preece, Chase Briscoe, Brad Keselowski, Ryan Blaney, Bubba Wallace and Alex Bowman following ...

The Zane Smith Iowa Speedway incident escalated after a heated crash late in the Iowa Corn 350, when a crew member from Smith ...