Scrum-Half in Rugby Union: What the No. 9 Does

The scrum-half is No. 9 in 15-a-side rugby union and is also called the half-back in some regions. Positioned between the forwards and backs, the scrum-half usually collects possession from scrums and breakdowns, then chooses whether to pass, run or kick. World Rugby lists scrum-half as No. 9, while its scrum guide describes the player feeding the scrum, moving to its rear and usually passing to the fly-half (World Rugby positions guide; World Rugby scrum guide).

This guide is for senior, full-contact 15-a-side union. Age-grade and modified formats may use different scrum, kicking and contact rules, so check your union’s current regulations.

What does a scrum-half do?

A scrum-half’s job is to turn possession into an effective next play. That involves five recurring tasks.

1. Deliver the ball from the breakdown

The No. 9 tracks the ball carrier, arrives behind the breakdown and scans before the ball becomes available. From there, the player can pass from the floor, carry around the fringe or kick.

The scrum-half should not automatically enter every ruck. If the ball is secure, staying out preserves the team’s main distributor. If possession is threatened and the scrum-half is the next suitable player, securing the ball may be more important than waiting to pass. See rucking technique fundamentals for legal entry and body position.

Observable cues:

• set up behind the ruck offside line;
• scan both sides before touching the ball;
• call the intended receiver or direction early;
• move the ball in one action rather than lifting, resetting and then passing.

Under the current global law trial, once the referee calls “use it” at a won, available ruck, the ball must be played away within five seconds. The ruck ends when the ball leaves, when the player playing it away lifts it from the ground, or when it is on or over the try line (World Rugby Law 15). See when the ruck “use it” count starts for the practical timing.

2. Control the set-piece restart

For a scrum awarded to their team, the scrum-half chooses the side of the feed. Once both packs are square, stable and stationary, the No. 9 must feed without delay, using one quick forward movement. The ball must be thrown straight and first touch the ground inside the tunnel; the scrum-half may align one shoulder with the middle line (World Rugby Law 19).

Rehearse the feed with the hooker: agree the trigger, use repeatable ball speed and put the ball where the hooker expects it. Once possession is won, the No. 9 will commonly follow the ball to the rear and pass, run or kick.

On the defending side, current Law 19 contains a global law trial for scrum-half positioning. Once play begins, the defending No. 9 may remain near the scrum with both feet no farther forward than the tunnel’s centre line. The alternatives are to retire permanently to the offside line at the hindmost foot or to at least five metres behind that foot. Other non-participants remain at least five metres behind their team’s hindmost foot (World Rugby Law 19). Check the whole formation in our guide to rugby scrum positions.

At a lineout, the scrum-half frequently acts as the receiver, ready to take a tap-down or pass and start the next phase. If a team uses a receiver, that player must stand between the five- and 15-metre lines and two metres from their lineout team-mates (World Rugby Law 18).

3. Choose the next play

A useful first scan asks:

1. Is the ball secure and playable?
2. Where is the nearest defensive pressure?
3. Are our intended receivers organised?
4. Is there space to pass into, run at or kick toward?

A quick pass is not automatically a good pass. If the receiver is stationary under pressure, another option may be better. Equally, taking extra steps around a clean ruck can remove space from the backline. Assess what the decision gives the next player, not speed alone.

4. Keep a running and kicking threat

A scrum-half who only passes allows defenders to drift early. A short carry around an unguarded ruck fringe can make defenders hold their line. Use a simple cue: eyes up, ball in two hands, accelerate into space. Do not pre-plan the run without checking the closest defenders and support.

A box kick can contest possession, find touch or move pressure downfield, but it also creates offside duties. Team-mates ahead of the kicker cannot interfere. A player covered by the 10-metre law must retire immediately behind an onside team-mate or an imaginary line 10 metres back from where the ball lands or is caught (World Rugby Law 10). Train the kick with its chase; distance without an organised chase is not a complete outcome.

5. Defend around the breakdown

In defence, the scrum-half commonly fills close to the ruck, communicates numbers and tracks play from the inside. Exact placement depends on the team’s system. The No. 9 still needs sound one-on-one tackle technique and must follow the tackle-height rule used by the relevant union or competition. Build that skill through a coach-led rugby tackle progression, rather than treating a smaller defender’s technique as optional.

Core scrum-half passing technique

For a clearing pass from the ground, World Rugby’s coaching sequence is to:

• approach in a low, strong and stable position;
• bend at the hips and knees;
• place the right foot beside the ball when passing right, or the left foot beside it when passing left;
• point the other foot toward the target to provide stability;
• keep the head over the ball and eyes on it;
• sweep the ball from floor to receiver in one movement;
• finish with both hands pointing at the receiver.

When passing right, the right hand stabilises the ball and the left supplies power; those roles reverse when passing left (World Rugby clearing-pass guidance).

Accuracy comes before maximum distance. Set the target in front of the receiver at a comfortable catching height so they can keep moving. Train both directions, but record them separately: an extra step or early turn may be hiding a weaker side.

A 30-minute club progression

Use this as a low-contact technical block. A qualified coach should supervise any addition of live rucks, tackling or contested scrums.

1. Static clearing pass — 6 minutes

Setup: One ball on the ground, a passer and a receiver five metres away. Mark a one-metre target gate in front of the receiver. Work from both sides.

Action: The passer sets the feet, bends at hips and knees, then sweeps the ball directly from the floor. Complete two sets of six each way.

Checkpoint: Can the receiver catch without stopping or reaching behind?

2. Arrive, scan, pass — 8 minutes

Setup: Put three breakdown markers five metres apart, with receivers to the left and right. A coach stands behind the receivers and signals the direction late.

Action: The scrum-half moves from marker to marker, arrives under control, scans, calls and passes toward the signal.

Checkpoint: The player sees the signal before touching the ball and sets up behind the offside-line marker.

3. Pass, run or organise — 8 minutes

Setup: Add two passive defenders: one near the breakdown and one wider. Give the scrum-half a receiver and a close support runner.

Action: The defenders vary their spacing. The No. 9 passes if the wider space is available, runs if the fringe is unguarded, or keeps hands off the ball while calling receivers into shape. Apply a five-second limit after the coach’s “use it” call.

Checkpoint: Ask the player to name the cue behind the decision. Reward a clear read, not a predetermined option.

4. Continuous three-phase game — 8 minutes

Setup: Play five attackers against three defenders in a narrow channel. Use touch tackles or coach-managed contact appropriate to the group. Place a new ball at each breakdown mark.

Action: Attack completes three phases; the scrum-half must communicate direction before every release. Rotate the No. 9 after each sequence.

Checkpoint: Track passes caught in front of the receiver, decisions made before the pickup and whether the No. 9 reaches the next breakdown in time to scan.

A useful scrum-half is not simply the player with the longest pass. Look for repeatable service from both sides, early communication, legal positioning and decisions that give the next player time and space.