The season began on January 20 at Daytona International Speedway and concluded on October 14 at Road Atlanta.
The provisional 2023 calendar was released on August 5, 2022, at IMSA's annual State of the Sport Address, featuring twelve rounds split across six race weekends.
[2] The final calendar was confirmed on August 26, 2022, adding rounds at Daytona and Lime Rock Park while dropping the round at WeatherTech Raceway Laguna Seca.
Points are awarded based on finishing positions in the race as shown in the chart below.
[18] Bold - Pole position Italics - Fastest lap †: Post-event penalty.