What Is TIO Relief in Golf? Read the Event’s Local Rule

The two original overhead sketches use the same fictional ball and hole. In one, a permanent building sits between them but does not touch the player's reasonable stance or swing. In the other, the Committee has defined a temporary stand as a TIO under the illustrated event condition.

This is why a television ruling does not transfer automatically to a club round. The event classification and adopted wording changed; the player did not acquire a general right to a clear view of the flag.

F-23's additional line-of-sight procedure uses the relationship between ball, structure and hole, including its defined corridor. The curved guide in our sketch keeps distance from the hole constant while showing why sideways movement can clear a sightline.

The drawn endpoint is not a prescribed reference point or relief area. The actual procedure requires complete relief and can be affected by the TIO's defined outer edge, connected structures and the event's permitted modifications.

A tent leg under the ball or in the intended swing raises a physical-interference question. A stand between ball and hole raises a sightline question. The additional Local Rule has exceptions, including unreasonable strokes or situations where the player cannot reasonably reach the structure.

Do not use a stand to escape an otherwise unplayable bush by assuming all interference guarantees every option. Ask the referee which part of the adopted rule applies to the actual ball position.

Identify the structure, the ball's course area, the intended reasonable stroke, the relevant outer edge and the Local Rule. Ask about any dropping zone or authorized side option before lifting. The governing F-23 text and its explanatory booklet are the procedure; this guide explains the distinction that makes the ruling look unusual.

Compare ordinary cart-path relief and tree-root Local Rules for two other cases where the condition's classification matters.