NAPA Auto Parts 150 (Irwindale)

The NAPA Auto Parts 150 is an ARCA Menards Series West race held annually at Irwindale Event Center in Irwindale, California. The property is primarily used for NASCAR races such as ARCA Menards Series West and Whelen All-American Series events. In late 2011, NASCAR announced it was dropping Toyota Speedway from its schedule. The company that manages the track, Irwindale Speedway LLC, filed Chapter 7 bankruptcy on February 13, 2012.