Numbers are used in baseball to designate defensive positions for keeping score. The top nine numbers (1–9) represent the players in the following positions: pitcher, catcher, first baseman, second baseman, third baseman, shortstop, left field, center field, and right field. These numbers assist a player in keeping track of a play. If there is a double play, for instance, it will be recorded as "6-4-3," which signifies that the shortstop was the player in the field, threw the ball to the second baseman, and then the second baseman threw the ball to the first baseman.