IndyCar

Portland International Raceway opened in 1961 on the former location of the city of Vanport, which was destroyed by the Memorial Day 1948 flood. The 12-turn, 1.964-mile natural road course is relatively flat but contains several spots for passing opportunities, including a quick chicane at the end of the frontstretch, a hard-braking right-hander (Turn 7) leading onto the sweeping backstretch, and a three-turn complex leading back onto the fronstretch. Al Unser Jr. won the first Indy car race in 1984. In 1997, the race set the now current all-time record for the closest two-car and closest three-car finish in Indy car racing history on a road course. Mark Blundell beat second-place Gil de Ferran by 0.027 of a second, and beat third-place Raul Boesel by 0.055 of a second, in a three-wide finish.

World Wide Technology Raceway just outside of St. Louis, Missouri is an intriguing 1.25-mile (2.01 km) oval favored by many of the drivers who race there due to the unique shape and varying degrees of banking in each corner. Turns 1 & 2 have characteristics similar to New Hampshire Motor Speedway while Turns 3 & 4 are similar to ISM Raceway in Phoenix and the track's egg shape is reminiscent of the oval at Twin Ring Motegi.

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

INDYCAR and the NTT INDYCAR SERIES returns in 2023 to Nashville, Tennessee with the Big Machine Music City Grand Prix. For three days in August, the streets of downtown will come alive with the sounds of music, food, and racing, all spun into an experience you just have to be there to feel. This temporary street circuit takes racers by Nissan Stadium, home of the NFL Tennessee Titans, and over the Korean War Veterans Memorial Bridge into downtown Nashville, the first motorsports course of its kind in the world to cross a major body of water.