Pioneer Park sits beside the loop in Azusa, California, a town set against the foothills. Azusa Rush covers 2.1 mi with 10 corners, requiring a steady hand to manage a mid-level of technicality. The lap involves a 55 m height difference, which demands momentum over the rises to keep the car balanced. This circuit, which plays free in the browser with no account and no install, tests a driver's ability to maintain speed through the shifting elevation.