2021 Indianapolis 500
The 2021 Indianapolis 500 (branded as the 105th Running of the Indianapolis 500 presented by Gainbridge for sponsorship reasons) was a 500-mile (800 km, 200 lap) race in the 2021 IndyCar Series, held on May 30, 2021, at the Indianapolis Motor Speedway in Speedway, Indiana. The month of May activities formally began on May 15 with the GMR Grand Prix on the combined road course. Practice for the Indianapolis 500 began on May 18, and time trials were held May 22–23. Carb Day, the traditional final day of practice, took place on May 28.