Box Lacrosse Explained: Rules, Rhythm and Your First Possession

You catch a pass near the boards. A defender closes the gap, a teammate comes over to set a pick, and the shot clock keeps counting down. Your next job is not simply to run faster—it is to recognize whether you can shoot, pass or move into better space.

Box lacrosse is the enclosed, six-player form of lacrosse: normally five runners and one goalkeeper per team. Players carry, pass and shoot with their sticks, trying to score while defending their own goal. Boards surround the playing area, and teams substitute during play. The NLL’s introduction to box lacrosse describes that basic setup and explains why the confined space makes box a distinct game, not merely field lacrosse moved indoors.

The basic rules to recognize

The reference below uses the World Lacrosse 2026–2028 rules. Those govern its international competitions; national bodies may adapt them or adopt them on different schedules. Youth and recreational players should check their competition’s rules before playing.

Feature	World Lacrosse baseline	What it means for a newcomer
Players	Six on the floor at full strength, normally five runners and a goalie	“Runner” means a player other than the goalkeeper.
Game length	Four 15-minute quarters, with the clock stopping during dead balls	Sixty minutes of playing time is not sixty minutes at the arena.
Shot clock	A shot on goal within 30 seconds of gaining possession	Keeping the ball without producing a shot on goal costs possession.
Advancing the ball	Get the ball across the centerline within 10 seconds after gaining possession in the defensive half	Find an outlet rather than lingering near your own goal.
Goal size	4 feet high by 4 feet 9 inches wide, measured inside the frame	Pick an opening rather than treating power as the whole shooting task.

These baselines come from World Lacrosse’s rules, sections 1, 3, 5 and 6. Clearing counts, game formats and equipment requirements can differ elsewhere.

A face-off—two opponents contesting the ball at center—starts each quarter and follows each goal. A power play is a numerical advantage, commonly because an opponent is serving a penalty. Under World Lacrosse rules, a minor penalty ordinarily lasts two minutes; a goal against the shorthanded team ends the applicable minor penalty early. Rules 6.2 and 7.2 explain these situations.

Follow one possession

1. Secure the ball and find an outlet. An outlet is the first pass that moves your team from defense toward offense. As a beginner, look for a visible teammate and a clear passing lane rather than forcing a long pass through traffic.

2. Attack with the clock in mind. Once across center, look at the defense before starting a dodge. If a teammate sets a pick—an action that impedes your defender’s coverage—use the space it creates and watch for that teammate becoming a passing option. Legal picks have contact limits; they are not permission to grab or forcefully knock over a defender. See World Lacrosse Rule 8.2.

3. Shoot, then read the rebound. A save or a ball striking the goalpost can produce another opportunity. Under World Lacrosse rules, a shot on goal or a ball hitting the goalpost resets the shot clock; a miss into the boards is not, by itself, a reset. The new count starts when a team gains possession. Watch the ball and the clock instead of assuming every attempt earns another 30 seconds. Rule 6.6 explains the resets.

4. React when possession changes. Locate the ball, the opponent moving toward your goal and your bench’s instructions. Do not automatically run off. Live substitutions are allowed, but under World Lacrosse rules the replacement must wait until the outgoing player has both feet within the marked substitution area. The outgoing player must then leave the floor for the bench. Rule 6.13 sets the procedure.

Contact and the crease are not optional details

Box is a contact sport, but “crosschecking is allowed” is an incomplete lesson. A crosscheck uses the stick held in both hands to check an opponent. World Lacrosse defines permitted crosschecks and prohibits checks to the back, above the shoulders or below the waist, with further restrictions on off-ball contact. Learn legal contact from a qualified coach before practicing it. Rule 8.4 sets the limits.

The crease is the marked area around the goal. Its line counts as inside. An attacker carrying the ball cannot put any part of their body on that line or inside it. When shooting, keep your body out of the crease until the ball completely crosses the goal line; contacting the crease earlier normally disallows the goal, with an exception for an attacker illegally checked into it by a defender. World Lacrosse Rule 8.8 covers these boundaries.

Before your first session, confirm the required gear and contact policy. World Lacrosse’s equipment baseline includes a helmet with facemask and chinstrap, mouthguard, gloves, shoulder/vest pads and rib pads. Goalkeepers need specialized protection. Rules 2.5–2.7 cover equipment requirements. For modified recreational play, use our adult non-contact box checklist.

A simple first-session exercise

With a coach, mark a small passing area safely away from the boards. Wear the required protective equipment. Use two attackers and one defender, with no checking or contact. The defender blocks passing lanes; the attackers pass and move into open space. Start without a clock, then try maintaining possession for 15 seconds. This is a passing-and-awareness exercise, not a simulation of a full attacking possession.

Checkpoint: before each catch, can you locate the defender and your next passing option? If not, slow the exercise down. Add defensive pressure only when players can catch and move under control, keeping this exercise non-contact.

For a structured next session, use our complete box lacrosse practice drills.