USA Track & Field is the governing body for track and field in the United States. It organizes the annual USA Outdoor Track and Field Championships and USA Indoor Track and Field Championships. The Diamond League currently features one round in the United States, the Prefontaine Classic; the series formerly included the Adidas Grand Prix as well. Three of the World Marathon Majors are held in the United States: the Boston Marathon, Chicago Marathon and New York City Marathon. The Freihofer's Run for Women is also an IAAF Road Race Label Event. Amateur organizations such as the National Collegiate Athletic Association and Amateur Athletic Union sanction cross-country running in fall, indoor track and field in winter, and outdoor track and field in spring.