Porsche Sprint Challenge USA West

Porsche Sprint Challenge USA West is a regional one-make Porsche championship created by Porsche Motorsport North America (PMNA) and the United States Auto Club (USAC) to give teams in the western United States and Canada a more geographically favourable, six-weekend schedule. It runs four classes — GT3 Cup Pro-Am, GT3 Cup Masters, Cayman Pro-Am and Cayman Masters — on the 911 GT3 Cup (Type 992.1) and 718 Cayman GT4 RS Clubsport, racing at venues such as Sonoma Raceway, Circuit of the Americas, Road America and WeatherTech Raceway Laguna Seca, with select joint events alongside the North American series.