The '''NASCAR O'Reilly Auto Parts Series at Chicagoland Speedway''' is a
NASCAR O'Reilly Auto Parts Series stock car race held annually at
Chicagoland Speedway in
Joliet, Illinois.
History celebrates after his only Busch Series victory during the 2004 event. In 2008 the race has been held at night under Chicagoland's lighting system, after being held as a day race for the previous 7 years. However, in 2011, the race returned to daytime. From 2016 to 2017, it served as the final race of NASCAR's "regular season" for the Xfinity Series, Following the race, the top 12 drivers in points standings advance to the seven-race
NASCAR Xfinity Series playoffs. In 2017, the race was known as
TheHouse.com 300. Starting in 2018, the race moved to June, the weekend before 4th of July. The new race that
Las Vegas Motor Speedway acquired from
Kentucky Speedway took Chicagoland's former spot and was renamed the '''Overton's 300'''. In 2026, the race would return to the schedule.
Past winners •
2010: Race extended due to a
overtime finish. •
2020: Race cancelled and moved to
Darlington due to the
COVID-19 pandemic.
Multiple winners (drivers) Multiple winners (teams) Manufacturer wins ==Owens Corning AttiCat 300==