IZOD IndyCar World Championships
The IZOD IndyCar World Championship Presented by Honda was an IndyCar Series race on the Las Vegas Motor Speedway, held from 1996–2000, and again in 2011. It was first known as the Las Vegas 500k. The Champ Car World Series held a race at the track during the 2004 and 2005 seasons as doubleheaders with the NASCAR Camping World Truck Series and a street race was held in Las Vegas at the Fremont Street Experience in 2007.
2011 IZOD IndyCar World Championship
The Las Vegas race was added to the schedule for the 2011 season, replacing the event at Homestead-Miami Speedway as the final race of the IndyCar season. The races at Homestead and the International Speedway Corporation tracks were removed from the schedule following the previous year's season. Las Vegas Motor Speedway was returning to the IndyCar schedule for the first time since 2000, and the event marked the first open-wheel race at the circuit since the Hurricane Relief 400 Champ Car event in 2005. The circuit since was reconfigured in 2006, which saw a greater degree of banking added to the circuit to encourage side-by-side racing. The race was scheduled for 200 laps around the oval, totaling .