Mid-Ohio Sports Car Course
2.4 Mile Road Course (1980, 83-89)
2.25 Mile Road Course (1990-2003, 07-24)
Remeasured to 2.258 Miles in 1997
Lexington, Ohio
CART sanctioned 1980, 83-2003 (USAC co-sanctioned 1980)
IRL sanctioned 2007-10
INDYCAR sanctioned 2011-24