Custom Handicapping Mode




Selecting Custom Handicap Mode


  1. In Handicap System, activate the Options Menu by placing your pointer inside the area marked below in orange



  2. Click on "Manage / Load" link under "Rosters" section on the Options Menu (pictured above at top)

  3. Select the Roster for which you want to setup handicap calculation parameters by clicking on the Roster name link



  4. On the Roster Settings window, click on the "Calculation Setup" tab



  5. Click on the Calculation Mode drop down menu to select a 9- or 18-hole Custom handicapping mode



Why use Custom Mode?


Why would you ever want to use your own CUSTOM handicapping parameters?  Mainly because the USGA calculation procedure calls for a rolling average using the 10 lowest out of 20 score differentials, and you must have at least 5 scores just to calculate a USGA handicap.  For clubs that play less than 20 weeks a year, it makes more sense to use a smaller rolling average to handicap golfers.  Or maybe your organization does not meet the requirements to issue USGA handicaps. In that case you can set up a custom mode to emulate the USGA system. The calculated handicap would not be an official USGA handicap, but would be very close.

Note: If you use the custom handicapping mode, no Index (Factor for RCGA) will be produced, but a Custom Cdex (analogous to USGA Index and RCGA Factor) along with a course handicap.  An Index by definition means you are using the USGA formulas to calculate handicaps.

If you set the Handicap Calculation mode to Custom Handicap the following screen will appear:

 

To set up handicapping:

  1. What Handicap Percent Figure do you want to use?
    The Handicap Percent % figure is used to calculate the final handicap.

Example: If Handicap Percent figure = 90% and a golfer’s Handicap Differentials average is 12, then …
Custom Cdex = Handicap Differentials average x 90%
Custom Cdex = 12 x .90

Custom Cdex = 10.8
Custom Cdex = 11 (if rounded); 10 (if truncated)



  1. How many scores will a golfer's handicap be based on?
    Determine how many scores you want a golfer's handicap to be based on. For example, if a golfer gave you his last 100 scores, how many would you use to base his handicap on? The maximum number of past scores Handicap System will look at is 30 (USGA looks at 20 most recent). Enter this number in the box Number of scores handicap based on.

Note: The more scores a handicap is based on, the less fluctuation you will see in handicaps. In other words, if a golfer’s handicap is based on 20 scores, any new score will have a 1 in 20 (5%) weight on his handicap.  However, if his handicap was based on only 4 scores, any new score would have a 1 in 4 (25%) weight on his handicap.



  1. What is the minimum number of scores a golfer must have before a handicap can be calculated? 
    Enter the number of scores a golfer must have before a handicap can be established.  Handicap System will not calculate a handicap until s/he has at least this many scores.

  2. What should Handicap System do in every instance it may encounter?  Drop any high or low scores when calculating a handicap?
    Fill in the handicap table to tell Handicap System what to do in every instance it may encounter.  What should Handicap System do if a golfer has only one score to look at, only two scores to look at, only three scores to look at, etc.  Do you want to drop any high or low scores when calculating a handicap?

Note: Many clubs choose to drop some high scores, so that one bad score does not increase a handicap excessively.  This helps deter sandbagging.  If a golfer shoots an unusually high score, he may think it will make his handicap go up, but in reality it has no effect on his handicap since this high score will be discarded for handicap purposes. The USGA discards high scores to mitigate sandbagging.



Example: If you want Handicap System to calculate a handicap based on a golfer's last 6 scores, the parameters would be filled in...


Number of scores handicap based on: 6  But when a golfer has 6 scores to base a handicap on do you want to drop any high or low scores before calculating a handicap?  What if a golfer only has 5 prior scores to look at? Do you want Handicap System to drop any high or low score then? What should  Handicap System do if a golfer has only 4, 3, 2, or 1 scores available?  You must fill in the table to indicate exactly what you want the program to do in every instance it may encounter. 

For example, you may decide on the following…

A golfer’s handicap will be based on the best 4 of the last 6 scores shot.

If a golfer only has 5 scores, the best 4 of the 5 will be used.

If a golfer only has 4 scores, the best 3 of the 4 will be used.

If a golfer only has 3 scores, all 3 scores will be used.

If a golfer only has 2 scores, no handicap will be calculated.

If a golfer only has 1 score, no handicap will be calculated.

The Parameters will be filled out as follows….

According to the table above…

  • A golfer must have at least 3 scores before a handicap can be calculated.
  • When a golfer has 3 scores available for handicapping, no high scores are discarded.  This means that all 3 scores are used to calculate a handicap.
  • When a golfer has 4 scores available for handicapping, one high score is discarded.  This means that the best 3 scores are used to calculate a handicap.
  • When a golfer has 5 scores available for handicapping, one high score is discarded.  This means that the best 4 scores are used to calculate a handicap.
  • When a golfer has 6 scores available for handicapping, 2 high scores are discarded.  This means that the best 4 scores are used to calculate a handicap.
  • When a golfer has MORE than 6 scores available for handicapping, only the most recent 6 scores are considered for handicaps.  Of these 6, the best 4 scores are used to calculate a handicap.



  1. Do you have a Maximum Handicap?
    Specify the maximum handicap allowed in your league. The recommended USGA maximum handicap is 36.4 for men and 40.4 for women for 18 holes. If you are calculating nine hole handicaps, the recommended maximum is 18.2 for men and 20.2 for women. If you don't have a maximum handicap, type in 99.


  2. Do you want to Round or Truncate handicaps?
    USGA recommends that handicaps be rounded to the nearest whole number, but some leagues prefer to truncate (chop off the decimal points) handicaps.

Handicap

Round

Truncate

7.49

7

7

7.50

8

7

7.99

8

7



  1. How many decimal places do you wish to calculate a handicap to?
    Handicaps can be calculated to none, one, or two decimal places.


  2. Other options.




Custom Handicap Examples


You want to use the best 4 of the player's last 6 scores, and use 90% to determine the handicap. The Parameters will be set as follows:

Handicap Percent(%) figure ..... 90

# of scores handicap based on....6

# of Scores

Available

Discard

Highest

Discard

Lowest

1

0

0

2

1

0

3

1

0

4

2

0

5

2

0

6

2

0

When a player has 1 score, this score will be used for a handicap. (No scores are discarded)

When a player has 2 scores, the lowest 1 will be used for a handicap. (Highest 1 score discarded)

When a player has 3 scores, the lowest 2 will be used for a handicap. (Highest 1 score discarded)

When a player has 4 scores, the lowest 2 will be used for a handicap. (Highest 2 scores discarded)

When a player has 5 scores, the lowest 3 will be used for a handicap. (Highest 2 scores discarded)

When a player has 6 scores, the lowest 4 will be used for a handicap. (Highest 2 scores discarded)

John Smith now has 7 scores entered.  What is his handicap?  Handicap System calculates the handicap as follows:

Score #

Used

Score

1

*

91

2

*

89

3

*

95

4


99

5


97

6

*

93

7


99

John has 7 scores available. Only the most recent 6 scores are selected for consideration. The best 4 of these 6 scores are used in the handicap calculation.  Assume 71.3 is the rating and 115 the slope for all scores. Round differentials to one decimal place (i.e., 10.1, 13.2, etc.).

SCORE

Differential


91

(91-71.3) x 113/115 =

19.4

89

(89-71.3) x 113/115 =

17.4

95

(95-71.3) x 113/115 =

23.3

93

(93-71.3) x 113/115 =

21.3

------

Sum of differentials

81.4

The average differential is determined: 81.4 ÷ 4 = 20.35

Custom Cdex = average differential x Handicap Percent truncated to one decimal place: 20.35 x .90 (handicap % figure) = 18.315 = 18.3


Home course is sloped at 115.

Course Handicap (for home course) = 18.3 x 115 ÷ 113 = 18.62

Course Handicap rounded to whole number = 19


Handicap Example 2


Suppose you want to calculate a simple handicap by averaging the last three scores.  How would the CUSTOM HANDICAP parameters be set?

Handicap Percent(%) figure ..... 100

# of scores handicap based on....3

# of Scores

Available

Discard

Highest

Discard

Lowest

1

0

0

2

0

0

3

0

0


Handicap Example 3


Suppose you want to calculate a handicap by selecting 3 out of the last 5 scores.  When you have 5 scores you want to drop the high and low scores and use the rest for handicapping.  How would the CUSTOM HANDICAP parameters be set?

Handicap Percent(%) figure ..... 90

# of scores handicap based on....5

# of Scores

Available

Discard

Highest

Discard

Lowest

1

0

0

2

0

0

3

0

0

4

1

0

5

1

1

As scores accumulate they would be selected for handicapping as follows:

1 SCORE   available - All scores selected

2 SCORES available - All scores selected

3 SCORES available - All scores selected

4 SCORES available - High score dropped, other 3 selected

5 SCORES available - High score dropped, low score dropped, other 3 selected

6 SCORES available - Last 5 considered - High dropped, low dropped, other 3 selected

7 SCORES available - Last 5 considered - High dropped, low dropped, other 3 selected

(and so forth...)



Emulating the USGA formula.


If you want to emulate the USGA handicap system, fill in the form as follows:

Handicap Percent(%) figure ..... 96

# of scores handicap based on....20

Min # scores needed…5

# of Scores

Available

Discard

Highest

Discard

Lowest

5

4

0

6

5

0

7

5

0

8

6

0

9

6

0

10

7

0

11

7

0

12

8

0

13

8

0

14

9

0

15

9

0

16

10

0

17

10

0

18

10

0

19

10

0

20

10

0

The table above follows the exact USGA formula - 96% of the best 10 out of 20 scores.  Please note that 20 scores are required to produce a full USGA handicap and at least 5 scores are required before an initial handicap is calculated. 

You can deviate slightly from the USGA and relax the minimum number of scores required from 5 to 1.  This allows you to calculate the initial handicap with only one score. Remember...only the best score out the first 5 or 6 will be used for handicapping.  The results will be that handicaps will move only down at first and then handicaps will slowly stabilize.

Handicap Percent(%) figure ..... 96

# of scores handicap based on....20

Min # scores needed…1

# of Scores

Available

Discard

Highest

Discard

Lowest

1

0

0

2

1

0

3

2

0

4

3

0

5

4

0

6

5

0

7

5

0

8

6

0

9

6

0

10

7

0

11

7

0

12

8

0

13

8

0

14

9

0

15

9

0

16

10

0

17

10

0

18

10

0

19

10

0

20

10

0