The field is 300 yards long and 160 yards wide, making it the size of nine football fields. Teams switch goals after every goal scored. There are six periods of play called “chukkers” with a 10 minute break after the 3rd chukker. Each Chukker is 7 minutes and 30 seconds long. The clock is only stopped if there is a foul, a broken piece of tack, or an injured horse. The clock is not stopped if the ball goes over the sideboards, a player falls off and is not injured or a goal is scored.