2010 in IndyCar

The 2010 IZOD IndyCar Series was the 15th season of the IndyCar Series, and the 99th recognized season of top-level American open wheel racing. It was the series' first of six planned seasons under Izod title sponsorship, a multimillion-dollar deal which was announced on November 5, 2009. Its premier event was the 94th Indianapolis 500, held on Sunday, May 30.

The 2010 Kentucky Indy 300 was the eleventh running of the Kentucky Indy 300 and the fifteenth round of the 2010 IndyCar Series season. It took place on Saturday, September 4, 2010. The race contested over 200 laps at the 1.480-mile (2.382 km) Kentucky Speedway in Sparta, Kentucky.