There are 3 different disciplines in the equestrian competition in the Olympics. Polo isn't one of them, but it was when London hosted the games in 1908. Another little known fact, Sioux Falls has a polo club and Nancy went to a the practice field near Hills, Minnesota to get a lesson from the pros. The Sioux Falls Polo Invitational is this Saturday at 11 a.m. It is at Windrows Polo Field at Baker Park Place, which is off Highway 11 and 269th street, just East of Sioux Falls.