STP 300
 |
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| Venue | Chicagoland Speedway |
|---|---|
| Location | Joliet, Illinois, United States |
| Corporate sponsor | Owens Corning |
| First race | 2011 |
| Last race | 2015 |
| Distance | 300 miles (482.803 km) |
| Laps | 200 |
| Previous names |
STP 300 (2011–2013) EnjoyIllinois.com 300 (2014) Owens Corning AttiCat 300 (2015) |
| Most wins (manufacturer) | Chevrolet (3) |
| Surface | Asphalt |
| Length | 1.5 mi (2.4 km) |
| Turns | 4 |
The Owens Corning AttiCat 300 was a NASCAR Xfinity Series race held at Chicagoland Speedway in Joliet, Illinois. It replaced Gateway International Raceway as a part of the 2011 NASCAR Realignment. The race was replaced with a race at Pocono Raceway for the 2016 season.
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