How Rugby Offside Lines Work Explainer
In open play, a rugby player is offside when positioned in front of a teammate who is carrying the ball or last played it. Being offside is not automatically an offense, but that player must not play the ball, tackle the carrier, block an opponent, or otherwise interfere until put onside.
After a teammate kicks, offside players must retreat or wait for an onside teammate to move ahead of them. The 10-metre law creates an additional retreat requirement for players near where the kick lands, and most actions by the receiving team do not immediately free those players to advance.
Rucks, mauls, scrums, and lineouts create their own offside lines. A player who was offside at one of those phases remains restricted after it ends until the player retreats behind the relevant line or is put onside by an action recognized in the Laws.
Sanctions are usually penalties, although accidental offside can produce a scrum when the team gains an advantage. The rule creates playable space. Attackers can move the ball without opponents waiting permanently on the wrong side, while defenders can rejoin by retreating or being put onside correctly.
No. The player is penalized for interfering, moving toward the ball, or failing to retreat as required.
Yes, by moving ahead under the conditions in Law 10.
Yes, as do mauls, scrums, and lineouts.
Explore more "Explainers"
Discover additional explainers across politics, science, business, technology, and other fields. Each explainer breaks down a complex idea into clear, everyday language—helping you better understand how major concepts, systems, and debates shape the world around us.