Harwood Heights Ring is a technical loop of 1.1 mi that requires precise weight transfer across 8 corners. The layout demands a high level of car control to maintain speed through its tight sequences, where a single mistake disrupts the rhythm of the entire lap. It runs through the residential streets of Harwood Heights, Illinois, passing beside Saint Rosalie Roman Catholic Church and Union Ridge Bible Church. The circuit plays free in the browser with no account and no install.