Rule 16: Obstruction

Obstruction is one of the most frequently penalised infringements in netball and one of the most debated. While the 3 ft distance is well known, the rule is more nuanced than a simple distance check — it involves understanding where to measure from, what constitutes a defensive action, and how to judge interference with a player's passing or shooting action.

Sanction and Terminology

The sanction for obstruction is a penalty pass awarded where the infringer was standing — unless this would place the non-infringing team at a disadvantage, in which case the penalty is taken where the obstructed player was standing.

Example: If a defender obstructs from behind the player with the ball, awarding the penalty where the defender was standing would move the attacking team further from goal. In this case, award the penalty where the obstructed player was standing instead.
Obstruction Hand Signal (Player in Possession)

Obstruction (Player in Possession)

Obstruction Hand Signal (Player Not in Possession)

Obstruction (Player Not in Possession)

Terminology: Although there are two different hand signals for obstruction of a player in possession and not in possession, the terminology for both is simply "obstruction". There is no need to distinguish verbally between the two when making the call.

Measuring the Distance

Two Elements of the Measurement

The 0.9 m (3 ft) distance is measured on the ground between two points:

  1. The nearest part of the landing foot of the player with the ball
  2. The nearest part of the opposing player's nearer foot in contact with the ground

Both elements must be understood to correctly judge obstruction.

From the Player with the Ball

Where the distance is measured from depends on the type of landing and what the player does with their feet. The key scenarios are summarised below.

Scenario Distance Measured From
One-foot landing (player stays in landing position) Nearest part of the landing foot
One-foot landing (landing foot lifted) Where the nearest part of the landing foot was last grounded
Two-foot landing (neither foot moved) Nearest part of whichever foot is closer to the defender
Two-foot landing (one foot moved) Nearest part of the foot that remains grounded
Player pivots on landing foot Nearest part of where the landing foot is now grounded (defender must adjust)

The pivot scenario is particularly important. If a player pivots their landing foot so that it is closer to the defender — most commonly seen when a shooter pivots in before taking a shot — the defender must adjust their position to maintain the 3 ft distance. The measurement is from where the landing foot is now, not where it was. For more detail on landing foot rules, see Rule 13: Footwork.

From the Opposing Player

The distance is measured to the nearest part of the opposing player's nearer foot in contact with the ground. While not explicitly stated in the rules, where a player is in the air, it is reasonable to measure from their last point of contact with the ground (the nearer part if they jumped from two feet).

Stepping Back to Take Distance: When a defender who is within 3 ft wants to step back and defend, two things must happen before they can make a defensive action:
  1. They must have no foot on the ground within 3 ft of the player with the ball
  2. They must have grounded at least one foot at 3 ft or more from the player

This means a defender cannot simply jump backward and raise their arms while airborne — they must ground a foot at the correct distance first.

"Arms Before Distance": You may hear umpires use the phrase "arms before distance" but this is not rule book terminology — the correct term is simply "obstruction". However, distinguishing between a defender who raises their arms before achieving the correct distance and one who is simply setting up too close can be useful when communicating with players, as they require different adjustments. If a player asks for clarification, it is helpful to explain which type of obstruction they committed.

What Constitutes a Defensive Action?

Two Key Elements

For obstruction of a player in possession, there are two elements that each independently constitute a defensive action within 3 ft:

  1. Interfering with the passing or shooting action
  2. Making an attempt to deflect or intercept the ball, defend the player with the ball, or lift another player

Importantly, a defender can be within 3 ft of the player with the ball provided they are not doing either of these things.

Obstruction
  • Within 3 ft and actively attempting to deflect, intercept, or defend
  • Within 3 ft and interfering with the passing or shooting action — even without raising arms
  • Within 3 ft and feinting a defensive action (this still constitutes defending)
Not Obstruction
  • Within 3 ft but not interfering with the passing or shooting action and making no defensive effort
  • At 3 ft or more, making a defensive action
  • Jumping from 3 ft+ and landing within 3 ft, provided this does not interfere with the passing or shooting action
Interference Without Raising Arms

A defender does not need to raise their arms in order to interfere with a passing or shooting action. If a defender stands directly in front of where the player wants to pass, they are interfering with the pass because the player cannot release the ball where they intend to. This is especially clear if the defender is moving in response to where the player with the ball is looking to pass.

Feinting: If a defender within 3 ft feints a defensive action — for example, jerking their arms as if about to stretch out — this constitutes defending and should be penalised as obstruction, even if they do not actually extend their arms.

Shot Defence and Rebounds

You will often see defenders standing close to a shooter in preparation for a rebound. This is a common and legitimate tactic, but the judgement you must make is whether the defender is interfering with the shooter's action.

Whether this constitutes obstruction can depend on the shooter's release point. A shooter whose action involves arms straight up with a release from above the head may tolerate a defender standing closer than a shooter whose elbows come out further forward. The key considerations are:

  • Is the shooter having to adjust their action in response to where the defender is standing? If so, this indicates interference.
  • Is the defender so close that they are interfering with the shooter's eye line?
  • Is the defender making contact with the shooter? If so, this may also be a contact infringement.
  • Is the defender making any attempt to deflect or intercept the shot from within 3 ft?
Key Question: Would the shooter's action be the same without the defender in that position? If the shooter has had to adjust their technique, release point, or body position in response to the defender, consider obstruction.

The Lift

The 2024 rules explicitly address the lift (sometimes called the "hoist"), where one defender lifts another in order to gain greater elevation when defending a shot or pass. This is permitted, subject to the following conditions:

  • Before the lift begins, both defenders must have their feet at least 3 ft from the player with the ball.
  • The lifting player must maintain their foot distance throughout the lift — their feet on the ground still count toward the distance measurement.
  • Once the lifted player is airborne, the lifting player may move slightly closer (provided their own feet remain 3 ft+ away). This can effectively carry the lifted player to within 3 ft of the player with the ball. Since the lifted player has no feet in contact with the ground, the 3 ft distance measurement does not apply to them — they can attempt to block the shot or pass from this elevated, closer position.
  • All other rules continue to apply — in particular, the contact rule. The lifted player must not make contact with the shooter or the ball while it is in the shooter's hands.
Both Sets of Feet: The lifting player's feet must also remain at least 3 ft from the player with the ball. It is not sufficient for only the lifted player to have been at the correct distance before being lifted — both players' feet on the ground must be 3 ft+ away at all times.

The Step In

A defender who is at the correct distance may jump upward or toward the player with the ball and land within 3 ft, provided this does not interfere with the passing or shooting action. Equally, if the player with the ball reduces the distance themselves — by stepping closer to the defender — the defender is not penalised.

However, the fact that the distance is measured from where the landing foot was does not give the defender carte blanche to stand as close as they like to the player's current position. If the step in is small, the defender still needs to give the space to make up to 3 ft from the original landing foot position. Some defenders seem to think that any step in by the attacker means they can stand wherever they like — this is not the case.

Permitted
  • Defender at 3 ft+, player steps in reducing the gap — defender holds position and continues defending
  • Defender at 3 ft+, jumps toward the player and lands within 3 ft without interfering with the passing or shooting action
Infringement
  • Player steps in, defender brings their arms down onto the ball — this is contact on/with the ball
  • Defender jumps toward the player and lands within 3 ft in a way that interferes with the passing or shooting action
Remember: The contact rule still applies when a player steps in. A defender cannot simply bring their arms down onto the ball because the player has moved closer. The ball is an extension of the player's hand, and contact on or with the ball while in the player's possession is penalised under Rule 17.

Player Not in Possession

What is Permitted

A player who is within 3 ft of an opponent who does not have the ball may extend their arms to:

  • Catch, deflect, or intercept a pass or a fake pass
  • Catch, deflect, or bat a rebound from an unsuccessful shot at goal
  • Momentarily signal for a pass or indicate the intended direction of a movement
What is Not Permitted

A player who is within 3 ft of an opponent may not use movements that take the arms away from the body to prevent the movement of an opponent, except as required for natural body stance. This applies to both attacking and defending players — obstruction of a player not in possession is not limited to defenders.

Judging Natural Body Stance

Arms naturally move as part of a player's body stance when they are in motion. This movement is typically in line with the direction of travel and generally not out and away from the body. The key distinction is that any sideways reaches across that restrict the movement of an opponent should likely be penalised.

In making this judgement, it is important to assess whether the movement of the arms away from the body actually interfered with an opponent. If the arm simply reaches out and is "soft" — the opponent moves through it with minimal resistance — then there is little interference and this probably should not be penalised. However, if the arm becomes "hard" as the opponent tries to move through it, impeding their movement, then it should be penalised.

Judgement Call: This is ultimately about impact. The test is whether the arm position actually prevented or restricted the opponent's movement, not simply whether the arm was extended.
Contact vs. Obstruction

There is some overlap between obstruction and contact when considering off-ball situations. The key distinction is:

  • Obstruction: No or incidental physical contact, but the arm position limits the opponent's movement
  • Contact: There is physical contact that results in a change to the opponent's body position or movement
  • Holding or grabbing: These involve physical contact and should be called as contact, not obstruction

For a more detailed discussion, see the Contact vs. Obstruction section on the Rule 17 page.