The goal is guarded by a single goalie and measures about 6 feet by 6 feet. The field has no boundaries, but is usually enclosed by existing borders, such a trees, a track or fences. When a player receives a yellow card, she is warned that she is in danger of being ejected from the game. If a player is given a red card, she is ejected. When a foul is committed, the umpire will blow the whistle and determine whether the foul is major or minor.
Penalties are more severe for major fouls than minor ones.
The most common illegality in a stick is that its pocket is too deep. The strings at the bottom of the stick's head can be pulled to tighten the pocket. If a player commits a foul, the umpire blows the whistle and play stops. The player fouled wins or retains the ball, while the player who fouled her is moved several yards behind or to the side of the player she fouled. All of the defense players are required to clear the arc to the border closest to which they were standing when the whistle blew.