The USATF Race Walking Committee is the official governing body of the sport of Race Walking in the United States. Its purpose is to supervise, control, coordinate, and encourage race walking activity for Junio and Open women and men. To support its mission the Race Walking committee overseas the USA Race Walking Grand Prix—it is a year-long series of competitions through which USATF crowns an overall champion for each competitive year based upon the National Championship schedule of events. Races are contested at distances ranging from 1 mile to 50 kilometers for open men and women, and from 5,000 meters to 20 kilometers for juniors. The Race Walk Subcommittee of the Masters Track and Field Committee oversees race walking activity for masters men and women.