Page type: Glossary / definition
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Meaning
An Immovable Obstruction is an artificial object that cannot be moved without unreasonable effort or without damaging the object or the course, and that does not meet the definition of a Movable Obstruction. Common examples include an artificially surfaced cart path, building or sprinkler head.
How it matters in match play
The Rules do not create a separate relief procedure for match play. If an Immovable Obstruction interferes with Alex’s ball, stance or intended swing, Rule 16.1 may allow free relief, except when the ball is in a Penalty Area. Taking the correct relief can avoid a penalty and therefore may change whether the hole is Won Hole, Lost Hole or Halved Hole; the players should agree the reference point or request a Ruling.
Table
| Quick reference | Detail |
|---|---|
| Term | Immovable Obstruction |
| Category | rules |
| Applicable rule | Definitions — Immovable Obstruction; Rule 16.1 (Relief from Abnormal Course Conditions, including Immovable Obstructions) |
| Related concepts | Obstruction, Movable Obstruction, Free Relief, Nearest Point of Complete Relief, General Area |
Worked example
Alex’s ball lies beside a cart path in the General Area, and the path interferes with his stance. He identifies the Nearest Point of Complete Relief, then drops within one club-length, no nearer the hole, and plays on; Ben’s match-play result is then settled using the strokes actually taken.
Rule reference: Definitions — Immovable Obstruction; Rule 16.1 (Relief from Abnormal Course Conditions, including Immovable Obstructions)
Sources: www.randa.org , www.randa.org , www.randa.org , www.usga.org , www.usga.org
Common questions
Is a cart path an Immovable Obstruction?
Usually, yes: an artificially surfaced road or path is an Obstruction, and it is generally immovable because moving it would require unreasonable effort or risk damage. The Committee may set a Local Rule or define an object differently, so check the Terms of the Competition.
Can I always take free relief from an Immovable Obstruction?
No. Rule 16.1 requires genuine interference with the ball, intended stance or intended swing; on the Putting Green, interference can also be on the Line of Play. Free relief is not available when the ball is in a Penalty Area, or when the interference exists only because an unreasonable stroke or direction was chosen.
How is relief measured from an Immovable Obstruction?
For a ball in the General Area, find the Nearest Point of Complete Relief and drop within one club-length, not nearer the hole and still in the General Area. The dropped ball must obtain complete relief from the obstruction. Different procedures apply in a Bunker or on the Putting Green.
Does an Immovable Obstruction give extra strokes in Match Play?
No. It can provide free relief when Rule 16.1 applies, but it does not award a Handicap Stroke or reduce the score automatically. The player must take the permitted relief correctly and then continue the hole.
What is the difference between an Obstruction and an Immovable Obstruction?
An Obstruction is any artificial object except a Boundary Object or Integral Object. It is Immovable when it cannot be moved without unreasonable effort or damage and does not meet the Movable Obstruction definition. That classification determines which relief procedure is available.
Is an Immovable Obstruction the same as Ground Under Repair?
No. Both are types of Abnormal Course Condition and can come under Rule 16.1, but they are separate defined terms. Ground Under Repair is a course area identified by the Committee or covered by the definition; an Immovable Obstruction is an artificial object meeting the immovability test.