2023 NAPA Auto Parts BlueDEF 150 (Irwindale)

2023 NAPA Auto Parts BlueDEF 150 was a NASCAR Whelen West Series race held on March 11, 2023, at Irwindale Speedway in Irwindale, California. The race was sponsored by NAPA Auto Parts and BlueDEF, a diesel exhaust fluid. It marked a significant event in the NASCAR Whelen West Series schedule. While specifics regarding the race's outcome, winners, and notable events are not readily available within this text-only format, it is understood to have been a standard race within the series' usual competitive framework. Further information may be found through official NASCAR Whelen West Series archives or motorsports news sources.