When the
adjusted gross score
is higher than the
USGA Course Rating
, the
Handicap Differential
is a positive number. The following is an example for determining a
Handicap Differential
using an
adjusted gross score
of 95 made on a course with a
USGA Course Rating
of 71.5 and a
Slope Rating
of 125:
Adjusted Gross Score
-
USGA Course Rating
:
95 - 71.5 = 23.5
Difference x Standard
Slope Rating
:
23.5 x 113 = 2655.5
Result /
Slope Rating
:
2655.5 / 125 = 21.24
Handicap Differential
(rounded):
21.2
b. Minus Handicap Differential
When the
adjusted gross score
is lower than the
USGA Course Rating
, the
Handicap Differential
is a negative number. The following is an example for determining a
Handicap Differential
using an
adjusted gross score
of 69 made on a course with a
USGA Course Rating
of 71.5 and a
Slope Rating
of 125:
Adjusted Gross Score
-
USGA Course Rating
:
69 - 71.5 = -2.5
Difference x Standard
Slope Rating
:
-2.5 x 113 = -282.5
Result /
Slope Rating
:
-282.5 / 125 = -2.26
Handicap Differential
(rounded):
-2.3
10-2. Handicap Index Formula
The
Handicap Index
formula is based on the best
Handicap Differential(s)
in a player's
scoring record
. If a player's
scoring record
contains 20 scores, the best 10
Handicap Differentials
of the most recent 20 scores are used to calculate the
Handicap Index
. As the number of scores in the
scoring record
decreases, the percentage of scores used in a
scoring record
decreases from the maximum of the best 50 percent. If the
scoring record
contains 9 or 10 scores, only the best three scores (30 to 33 percent) in the
scoring record
will be used. Thus, the accuracy of a player's
Handicap Index
is directly proportional to the number of acceptable scores posted. A
Handicap Index
must not be issued to a player who has returned fewer than five acceptable scores. The following procedures illustrate how an
authorized golf association,
golf club,
and computation services calculate a player's
Handicap Index
.
Based on how it's calculated and what I know about the game of golf a scratch golfer should not necessarily be shoot 71-73 every single round.