Rule 19. Ball in Motion Deflected or Stopped

Definitions

An “outside agency’’ is any agency not part of the match or, in stroke play, not part of the competitor’s side, and includes a referee, a marker, an observer and a forecaddie. Neither wind nor water is an outside agency.

“Equipment’’ is anything used, worn or carried by or for the player except any ball he has played at the hole being played and any small object, such as a coin or a tee, when used to mark the position of a ball or the extent of an area in which a ball is to be dropped. Equipment includes a golf cart, whether or not motorized. If such a cart is shared by two or more players, the cart and everything in it are deemed to be the equipment of the player whose ball is involved except that, when the cart is being moved by one of the players sharing it, the cart and everything in it are deemed to be that player’s equipment.

Note: A ball played at the hole being played is equipment when it has been lifted and not put back into play.

19-1. By Outside Agency

If a ball in motion is accidentally deflected or stopped by any outside agency, it is a rub of the green, no penalty is incurred and the ball shall be played as it lies except:

If a ball in motion after a stroke other than on the putting green comes to rest in or on any moving or animate outside agency, the player shall, through the green or in a hazard, drop the ball, or on the putting green place the ball, as near as possible to the spot where the outside agency was when the ball came to rest in or on it, and

If a ball in motion after a stroke on the putting green is deflected or stopped by, or comes to rest in or on, any moving or animate outside agency except a worm or an insect, the stroke shall be cancelled, the ball replaced and the stroke replayed.

If the ball is not immediately recoverable, another ball may be substituted.

(Player’s ball deflected or stopped by another ball — see Rule 19-5.)

Note: If the referee or the Committee determines that a player’s ball has been purposely deflected or stopped by an outside agency, Rule 1-4 applies to the player. If the outside agency is a fellow-competitor or his caddie, Rule 1-2 applies to the fellow-competitor.

19-2. By Player, Partner, Caddie or Equipment

a. Match Play

If a player’s ball is accidentally deflected or stopped by himself, his partner or either of their caddies or equipment, he shall lose the hole.

b. Stroke Play

If a competitor’s ball is accidentally deflected or stopped by himself, his partner or either of their caddies or equipment, the competitor shall incur a penalty of two strokes. The ball shall be played as it lies, except when it comes to rest in or on the competitor’s, his partner’s or either of their caddies’ clothes or equipment, in which case the competitor shall through the green or in a hazard drop the ball, or on the putting green place the ball, as near as possible to where the article was when the ball came to rest in or on it.

Exception: Dropped ball — see Rule 20-2a.

(Ball purposely deflected or stopped by player, partner or caddie — see Rule 1-2.)

19-3. By Opponent, Caddie or Equipment in Match Play

If a player’s ball is accidentally deflected or stopped by an opponent, his caddie or his equipment, no penalty is incurred. The player may play the ball as it lies or, before another stroke is played by either side, cancel the stroke and play a ball without penalty as nearly as possible at the spot from which the original ball was last played (see Rule 20-5).

If the ball has come to rest in or on the opponent’s or his caddie’s clothes or equipment, the player may through the green or in a hazard drop the ball, or on the putting green place the ball, as near as possible to where the article was when the ball came to rest in or on it.

Exception: Ball striking person attending flagstick — see Rule 17-3b.

(Ball purposely deflected or stopped by opponent or caddie — see Rule 1-2.)

19-4. By Fellow-Competitor, Caddie or Equipment in Stroke Play

See Rule 19-1 regarding ball deflected by outside agency.

19-5. By Another Ball

a. At Rest

If a player’s ball in motion after a stroke is deflected or stopped by a ball in play and at rest, the player shall play his ball as it lies. In match play, no penalty is incurred. In stroke play, there is no penalty unless both balls lay on the putting green prior to the stroke, in which case the player incurs a penalty of two strokes.

b. In Motion

If a player’s ball in motion after a stroke is deflected or stopped by another ball in motion after a stroke, the player shall play his ball as it lies. There is no penalty unless the player was in breach of Rule 16-1f, in which case he shall incur the penalty for breach of that Rule.

Exception: If the player’s ball is in motion after a stroke on the putting green and the other ball in motion is an outside agency — see Rule 19-1b.

PENALTY FOR BREACH OF RULE:

Match play — Loss of hole; Stroke play — Two strokes.