The Indianapolis Motor Speedway Radio Network, is an in-house radio syndication arrangement which broadcasts the Indianapolis 500, the NTT IndyCar Series, and Indy NXT to radio stations covering most of North America. From Wikipedia
Sunday’s 2 p.m. ET green flag sees Kyle Larson defending his Brickyard crown against the backdrop of Ty Gibbs versus Ty Dillon for the $1 million In-Season Challenge