Idaho has no major league professional team, although the San Diego Padres have a farm team in Idaho Falls. Idaho also has a team in the Continental Basketball Association and the West Coast Hockey League. In college sports, the Idaho State Bengals and the University of Idaho Vandals play Division I basketball and Division I-A football in the Big Sky and Big West Conferences, respectively. Boise State University is the largest university in the Big West Conference, with a football team in Division I. Most county seats hold pari-mutuel quarter-horse racing a few days a year, and Boise's racing season (including thoroughbreds) runs three days a week for five months. World chariot racing championships have been held at Pocatello, as are the National Circuit Rodeo Finals. Polo was one of Boise's leading sports from 1910 through the 1940s. Idaho cowboys have won numerous riding, roping, and steer-wrestling championships. Skiing is very popular throughout the state, and there is a world-class resort at Sun Valley. Golf is also quite popular. Harmon Killebrew, Hall of Fame baseball player, and Picabo Street, Olympic gold medalist, were born in Idaho.