Advantage lets play continue after an offence if the non-offending team may gain something better than a stoppage. The hard part is judging when they have had enough benefit and when the referee should come back.
If the attacking team already got the field position or attacking chance the referee was waiting for, advantage is considered over even if they later waste it.
This page applies the World Rugby Laws of the Game updated 1 July 2026. Law 7 lets the referee allow play to continue when the non-offending team may benefit, but advantage is not a fixed number of passes, metres, or seconds. The referee judges whether the team has gained a clear tactical or territorial benefit, taking account of the nature of the original infringement.
That is why two advantage periods can have different lengths. Space and possession may quickly satisfy advantage after one type of offence, while a penalty advantage may require a more substantial opportunity. If the expected benefit does not materialise, play returns to the original infringement. If the non-offending team commits a separate infringement before advantage is gained, the referee applies the effective law to the sequence rather than pretending the first signal erased everything that followed.
Do not judge the call only by whether the attack later scored. The legal question is whether an advantage was obtained at the time the referee ended it. A poor decision made by the team after gaining that benefit does not retrospectively revive the original infringement. Conversely, mere possession under immediate pressure may not provide a real advantage. Record the referee's signal rather than relying on commentary.