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.
Women's Chess Olympiad
The Women's Chess Olympiad is an event held by FIDE (the International Chess Federation) since 1957 (every two years since 1972), where national women's teams compete at chess for gold, silver and bronze medals. Since 1976 the Women's Chess Olympiad has been incorporated within Chess Olympiad events, with simultaneous women's and open tournaments.