The American Grandprix Association (AGA) is a national association that promotes Olympic-level show jumping in the United States.
[1][3][4][5] Leonard King was the AGA's president from 1978 through 1999.
[6] As of 2004, it ran 33 show jumping events in 20 states, with $3 million in prize money.
[1] The AGA awards an annual Rider of the Year award based on points, and annual Rookie of the Year and Horse of the Year awards based on money.
[1][5] Margie Goldstein-Engel is the AGA's only ten-time Rider of the Year (1989, 1991, 1994, 1995, 1996, 1999/2000, 2000/2001, 2003, 2005, 2006).