Form 18–24 March, IMSA announced the postponement of Mid-Ohio to 25–27 September, cancellation of the Long Beach round when the INDYCAR meeting was cancelled, moving up Laguna Seca to 4–6 September, and Michelin Raceway to 14–17 October. The Laguna Seca date change was designed to allow teams in LMP2 or GTLM to attend the 2020 24 Hours of Le Mans, which teams later declined.