Ruck vs Maul vs Scrum in Rugby Union
A ruck contests a ball on the ground, a maul contests a ball held off the ground, and a scrum is a structured restart after specified infringements or stoppages. All three create offside obligations, but their formation, legal methods of winning possession, joining requirements and endings differ.
Timeline
- 2026-06-01: World Rugby’s guideline on players on the wrong side of a maul became applicable to new competitions.
- 2026-10-12: Current World Rugby Laws 15, 16 and 19 and the 2026 maul guidance were rechecked.
Rucks, mauls and scrums are three different contests in rugby union. The easiest first question is where the ball is. A ruck forms over a ball on the ground, a maul forms around a ball carrier who remains on their feet with the ball off the ground, and a scrum is a referee-ordered restart in which bound packs contest a ball fed into the tunnel. [1][2][3]
A ruck requires at least one player from each team, in contact, on their feet and over the ball on the ground. Once it forms, players normally cannot handle the ball; possession is won by legally rucking or pushing opponents away. A player who got hands on the ball before the ruck formed may keep them there only while remaining on their feet. [1]
Ruck offside lines run through each team’s hindmost point among its ruck participants. Arriving players must come from behind that line, join on their feet and bind rather than charge in unbound. Players who do not join must retire behind their line. When the ball is clearly won and available, the referee calls “use it,” starting a five-second requirement to play it away. [1]
A maul starts with a ball carrier and at least one bound player from each team, all on their feet; the ball is held off the ground. Unlike a ruck, the ball remains in a player’s possession and may be transferred legally within the structure. The maul must move toward a try line, and players may drive while staying bound. Intentionally collapsing it is prohibited. [2][4]
At a maul, each team’s offside line passes through the hindmost foot of its participating player nearest that team’s try line. New participants must join from an onside position and bind to the hindmost player. World Rugby’s June 2026 guidance says a player who gets beyond the ball or into a pulling or dragging position after losing the contest should leave and rejoin legally or retire; it did not create a new law but explains enforcement. [2][4]
A scrum differs because open play has already stopped. Its purpose is to restart with a possession contest after a minor infringement or listed stoppage, such as a knock forward. In a full fifteen-a-side team, eight forwards bind in a prescribed formation. Once both sides are square, stable and stationary, the scrum-half feeds the ball, the packs may push, and front-row players may strike for it. [3]
Scrum offside lines depend on role. Players outside the scrum stay at least five metres behind their team’s hindmost foot. The two scrum-halves have special positioning rules, including current provisions for the non-possessing scrum-half near the tunnel or after retiring. The scrum ends when the ball emerges, is legally picked up or played by specified players, crosses the try line, or the referee whistles. [3]
For a quick identification, watch the ball and whether play stopped first. Ball on ground with opponents bound over it indicates a ruck; upright carrier with both teams bound indicates a maul; two organized packs after a whistle indicate a scrum. Then locate the hindmost participant or foot for the relevant offside line. Sevens, under-19, community and competition variations can alter personnel or procedures, so the applicable code should be checked. [1][2][3][4]
Sources
- World Rugby — 2026 Laws of the Game, Law 15: Ruck
- World Rugby — 2026 Laws of the Game, Law 16: Maul
- World Rugby — 2026 Laws of the Game, Law 19: Scrum
- World Rugby — Maul Law Application Guideline, June 2026