Irish Rugby Football Union
10/12 Lansdowne Road
Rugby sevens is sanctioned by the IRB, and is played under substantially the same laws and on a field of the same dimensions as the 15-player game. While a normal rugby union match lasts at least 80 minutes, a normal sevens match consists of two halves of seven minutes with a one-minute half-time break. The final of a competition can be played over two halves of ten minutes each, with a half-time break of two minutes. (In the IRB Sevens World Series, only the Cup final, which determines the overall winner of an event, is played with 10-minute halves; all finals for lower-level trophies are played with 7-minute halves.) This allows rugby tournaments to be completed in a day or a weekend. However, sevens scores are generally comparable to union scores; scoring occurs much more frequently in sevens, since the defenders are more spaced out.