PONY Baseball and Softball is a non-profit organization with headquarters in Washington, Pennsylvania. Started in 1951, PONY organizes youth baseball and softball leagues and tournaments, as over 500,000 players annually play PONY in over 4,000 leagues throughout the United States and over 40 countries world-wide. The televised Pony League World Series held annually in August at Washington's Lew Hays Pony Field attracts teenage teams from around the world. Membership is open to children and young adults from age 4 to 23 and the leagues are organized in two-year age brackets with "and-under" programs. Hundreds of PONY players have gone on to Major League Baseball careers, including Hall of Fame inductees Tony Gwynn and Cal Ripken Jr.