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 ...

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.

Chase Briscoe logged his third runner-up finish in four weeks, taking second at Iowa Speedway behind William Byron after similar near-misses at Dover and Sonoma.

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

Byron fought off fuel worries in the closing laps. He went the last 144 laps of the 350-lap race without a stop en route to ...

Fuel mileage has been an issue for William Byron in three races this season, costing him a victory at Michigan and a ...

Chase Briscoe's summer surge hits career-best 11th top-10 at Iowa Speedway in NASCAR Cup Series, elevating his championship ...

William Byron saved every drop of fuel to win the second NASCAR Cup Series race at Iowa Speedway in an action-packed race.

Tucked in America’s heartland is a 7/8 mile oval in the middle of a cornfield, dubbed the "Fastest Short Track on the Planet.

Byron has just enough gas to win Sunday's NASCAR Cup Series Iowa Corn 350 after racing "thousands of laps" at Iowa on a video ...

An extraordinary spat of cautions in Sunday’s Iowa Corn 350 Powered by Ethanol allowed William Byron to save an extraordinary ...