The Harvest Grand Prix may be the season 's finale if the St. Petersburg race fails to hold .
On 6 April , IndyCar once again postponed the start of the season , scrapping the Detroit Grand Prix , but converting the Iowa and Laguna Seca weekends to double-headers with two races each , and adding a second Indianapolis Motor Speedway road course race on 3 October—the Harvest Grand Prix—which will be a support race for the Intercontinental GT Challenge 's Indianapolis 8 Hour , and may serve as the season finale if the St. Petersburg race does not come to fruition .
Impact of the 2019–20 coronavirus pandemic on sports