The rugby union ball
The oval ball that shapes how rugby union is passed and kicked — its weight, air pressure, construction and the provision that lets younger players use a smaller one.
Overview
A rugby ball is oval and made of four panels. Its shape is not decoration: it is what makes a rugby pass a spiralled sideways action rather than a throw, and what makes the bounce unpredictable enough to be a tactical factor in its own right.
Law 2 sets the ball at 410–460 g. Its air pressure at the start of play is 65.71–68.75 kilopascals, which the Law also expresses as 0.67–0.70 kilograms per square centimetre or 9.5–10.0 pounds per square inch.
Materials and grip
The ball is made of leather or a suitable synthetic material, and may be treated to make it water-resistant and easier to grip. The pimpled surface of a modern ball is a direct consequence of that permission.
Grip matters more in rugby than in most ball sports because the ball is handled in contact, in rain, and by players whose hands are occupied a moment earlier. A ball that cannot be held one-handed cannot be offloaded.
Smaller balls are permitted
Law 2 allows match organisers to permit smaller balls. This is the same pattern seen across the Laws: World Rugby sets the adult specification and delegates the age-grade variation to whoever is running the competition.
It is worth stating plainly because a smaller ball is often described as a departure from the Laws when it is in fact provided for by them.
Good to know
- The ball is oval and made of four panels.
- It weighs 410–460 g.
- Start-of-play air pressure is 65.71–68.75 kPa, or 9.5–10.0 psi.
- It may be treated for water resistance and grip.
- Match organisers may permit smaller balls for younger age groups.
Where it’s used
Sports that use the rugby union ball:
Sources
The rules, dimensions and specifications on this page were read from these documents.
- Laws of the Game: Rugby Union — World Rugby, Law 2 — Ball (read 2026-09-12)
How it connects
The meaning-bearing relationships that place The rugby union ball in the wider knowledge graph — each one with the reason it exists.
Foundation of
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Frequently learned together
Taught side by side in the same stage of a learning path.
- Football boots (cleats)Both are taught in the “What you’ll need” stage of the Rugby learning path.
- MouthguardBoth are taught in the “What you’ll need” stage of the Rugby learning path.
- The rugby union fieldBoth are taught in the “What you’ll need” stage of the Rugby learning path.
- Artificial turfBoth are taught in the “What you’ll need” stage of the Rugby learning path.
- GrassBoth are taught in the “What you’ll need” stage of the Rugby learning path.
Explore across the knowledge base
Follow the threads that connect The rugby union ball to the rest of SocialSportHub.
Techniques
- Rugby union passingHow a rugby pass is actually made — the sideways swing that replaces a throw, why every pass must travel backwards, and what separates a spiral pass from a pop.
- Kicking in rugby unionThe kicks rugby union is played with — punt, grubber, box kick, up-and-under, drop kick and place kick — what each achieves and which law governs its use.
- Rugby union tackling techniqueHow a tackle is made safely and legally — where to place the head and shoulder, the height the Laws require, and why technique is a safety question before it is a performance one.
Facilities
- The rugby union fieldThe dimensions and markings of a rugby union pitch — the field of play, the in-goal areas, the 22-metre and 10-metre lines, the goal posts, and what the Laws fix versus what they leave open.
- Padel courtAn enclosed court, much smaller than a tennis court, walled with glass and mesh so the ball can be played off the walls.
Playing surfaces
- Artificial turfSynthetic grass, often filled with sand or rubber, that gives a firm, even, all-weather surface. It plays faster and truer than worn natural grass.
- GrassNatural turf grown on soil — the traditional surface for many field sports and, in tennis, a fast court with a low, skiddy bounce.
- ClayA soft, granular racquet-sport surface of crushed brick, stone or shale that slows the ball, gives a high bounce and lets players slide into shots.
Learning paths
Rules
- The maulThe contest for a ball held off the ground in rugby union — how a maul differs from a ruck, why that difference changes what players may legally do, and why it is a driving weapon.
- The lineoutHow rugby union restarts play after the ball goes into touch — where the lineout forms, how many players it may contain, the throw requirements, lifting, and the 10-metre offside line.
- Two-bounce ruleA pickleball rule requiring both the serve and the return to bounce once before players may hit the ball out of the air.
- The tackleWhat the Laws require of both players in a rugby union tackle — the height limit, the release obligations on the tackler, what the tackled player must do, and how the offside line is created.
Tactics
- Rugby union defensive systemsHow a rugby union defence organises fifteen players across the width of the field — the drift, the blitz and the umbrella — and the specific weakness each system accepts.
- Breakdown strategyThe contest that decides most rugby union matches — when to commit players to a ruck and when to leave it, what a jackal is trying to do, and why the counter-ruck is a gamble.
- Phase playHow rugby union teams attack by keeping the ball through successive rucks — what a phase is, why phases move a defence, and the cost that eventually makes a team stop.
- Point constructionHow tennis points are built rather than won — the neutral, attacking and defensive positions, what each one permits, and why most errors come from playing the wrong shot for the position.
- Rugby union set-piece strategyWhy the scrum and lineout are attacking platforms rather than restarts — how a set piece fixes defenders in known positions, and what a team is buying when it chooses one over a kick.
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How this page is maintained
- Content type
- Equipment
- Provenance
- Tier A — evergreen educational
- Verified external sources
- 0
- Content updated
- 2026-09-01
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