The 2.439-mile, 14-turn road course incorporates portions of Turns 1 and 2 and the frontstraight of the famed Indianapolis Motor Speedway oval and the remainder of the circuit is within the infield, allowing for great spectator viewing.

The 2.38-mile permanent road course has 17 flowing turns and features 80 feet of elevation change that challenge drivers and engineers. A 45-foot-wide racing ribbon also makes it imperative for patience while setting up overtaking opportunities.

The 1.968-mile, 12-turn circuit encircles the Long Beach Convention Center -- which houses a Family Fun Zone and numerous displays during the race weekend -- and runs down scenic Shoreline Drive. It offers numerous overtaking opportunities, including a hairpin turn just before the frontstretch.

ISM Raceway is a one-mile, low-banked tri-oval race track located in Avondale, Arizona, just outside of Phoenix. Opened in 1964 with a currently-estimated grandstand seating capacity of around 67,000. Lights were installed around the track in 2004. One of the signature features of the is the "dogleg" at the exit of Turn 2, to which in 2019 will see the start-finish line moved to the "dogleg". A.J. Foyt won the track's first oval race, a 100-mile USAC event at an average speed of 107.536 mph.

The 1.8-mile, 14-turn circuit incorporates streets of downtown St. Petersburg and a section of runway of Albert Whitted Airport. After the long frontstrecth, there's a tight right-hander into Turn 1 and then a quick left-hand turn. Plenty of drivers have gotten into trouble in these two turns over the years. There are two other long straights with heavy braking zones that afford opportunities to overtake.