Rule 27. Ball Lost or Out of Bounds; Provisional Ball
DEFINITION
A ball is "lost" if:
a. It is not found or identified as his by the player within five
minutes after the player's side or his or their caddies have begun
to search for it; or
b. The player has put another ball into play under the Rules, even
though he may not have searched for the original ball; or
c. The player has played any stroke with a provisional ball from
the place where the original ball is likely to be or from a point
nearer the hole than that place, whereupon the provisional ball becomes
the ball in play. Time spent in playing a wrong ball is not counted
in the five-minute period allowed for search.
"Out of bounds" is ground on which play is prohibited. When out of
bounds is defined by reference to stakes or a fence, or as being beyond
stakes or a fence, the out of bounds line is determined by the nearest
inside points of the stakes or fence posts at ground level excluding
angled supports. When out of bounds is defined by a line on the ground,
the line itself is out of bounds. The out of bounds line extends vertically
upwards and downwards. A ball is out of bounds when all of it lies
out of bounds. A player may stand out of bounds to play a ball lying
within bounds.
A "provisional ball" is a ball played under Rule 27-2 for a ball
which may be lost outside a water hazard or may be out of bounds.
If the original ball is lost in an immovable obstruction (Rule 24-2)
or under a condition covered by Rule 25-1 (casual water, ground under
repair and certain damage to the course), the player may proceed under
the applicable Rule. If the original ball is lost in a water hazard,
the player shall proceed under Rule 26. Such Rules may not be used
unless there is reasonable evidence that the ball is lost in an immovable
obstruction, under a condition covered by Rule 25-1 or in a water
hazard.
27-1. Ball Lost or Out of Bounds
If a ball is lost outside a water hazard or is out of bounds, the
player shall play a ball, under penalty of
one stroke, as nearly as possible at the spot from which the
original ball l was last played (see Rule 20-5).
Penalty for Breach of Rule 27-1
Match play-Loss of hole; Stroke
play-Two strokes.
27-2. Provisional Ball
a. Procedure - If a ball may be lost outside a water hazard or may
be out of bounds, to save time the player may play another ball provisionally
as nearly as possible at the spot from which the original ball was
played (see Rule 20-5). The player shall inform his opponent in match
play or his marker or a fellow-competitor in stroke play that he intends
to play a provisional ball, and he shall play it before he or his
partner goes forward to search for the original ball. If he fails
to do so and plays another ball, such ball is not a provisional ball
and becomes the ball in play under penalty
of stroke and distance (Rule 27-1); the original ball is deemed
to be lost.
b. When Provisional Ball Becomes Ball in Play - The player may play
a provisional ball until he reaches the place where the original ball
is likely to be. If he plays a stroke with the provisional ball from
the place where the original ball is likely to be or from a point
nearer the hole than that place, the original ball is deemed to be
lost and the provisional ball becomes the ball in play under penalty
of stroke and distance (Rule 27-1).
If the original ball is lost outside a water hazard or is out of
bounds, the provisional ball becomes the ball in play, under penalty
of stroke and distance (Rule 27-1).
c. When Provisional Ball to Be Abandoned - If the original ball is
neither lost outside a water hazard nor out of bounds, the player
shall abandon the provisional ball and continue play with the original
ball. If he fails to do so, any further strokes played with the provisional
ball shall constitute playing a wrong ball and the provisions of Rule
15 shall apply. Note: If the original ball is in a water hazard, the
player shall play the ball as it lies or proceed under Rule 26. If
it is lost in a water hazard or unplayable the player shall proceed
under Rule 26 or 28, whichever is applicable.