From 1919 to 1993, the 500 was the only race run at the Brickyard. Tony George (Hulman's grandson) inherited the track. He brought more racing to the Speedway. NASCAR started racing in 1994 with the Brickyard 400. The International Race of Champions (IROC) event was added in 1998. The last IROC at Indy race was held in 2003.