Extreme Baseball, also known as Double Diamond Baseball, is a sport based on traditional baseball. The main difference is that both teams are on the field at the same time. Pitchers from each team take turns pitching to batters at two adjacent home plates. One team runs around the bases in the normal counterclockwise direction, while the other team runs around bases in a clockwise direction. The world premier game took place on May 5, 2007 at Historic Sanford Memorial Stadium in Sanford, Florida.