NASCAR O’Reilly Series Returns to Chicagoland for Cuervo 300 in July 2026
The NASCAR O'Reilly Series will headline the Cuervo 300 at Chicagoland Speedway this July, marking the series' first 1.5‑mile race since the May 2026 event at Charlotte Motor Speedway. With early betting lines already released, drivers such as Justin Allgaier and Connor Zilisch are listed as favorites.
Jul 3, 2026