5Gs Handicap Calculation Information 
Originally written 1/22/02 
Revised 1/27/04 (added shaded red section at bottom) 
Revised 3/16/04 to explain adj. to Women's Course handicaps 
see Q7 
Revised 1/19/05 to correct formula error for Slope
Differencial  see Q10 
Revised 10/23/07 to correct error in Table 2,
change contact information, and broaden Q3 to include golf league history
other than just Motorola leagues. 
Revised 8/3/11 to update email addresses in
document and dates in answer to Q4. 
Revised 9/25/12 to update email addresses in
document and dates in answer to Q4. 







The league has had a number of questions from guests and
members asking how 
HANDICAPs are calculated in 5Gs league. This NEWs item addresses 
answers to the most frequently asked questions and gives some
basic 
information on the method used to calculate HANDICAPs. 







Q1.
How many rounds do I have to play to get a Handicap in 5Gs? 







Answer: After
joining the league a member establishes a
Handicap 
after only 1 round of play in 5Gs. NOTE:
USGA rules require 5 rounds 
to establish a Handicap,
but 5Gs handicaps are NOT USGA handicaps. 







Q2.
What if I decide to join the league after I played several rounds as a 
guest. Can I use my
GUEST rounds history to establish a Handicap? 







Answer: Yes, rounds played as a
guest are used to set up a Handicap 
after joining the league. 







Q3.
I am a member of another golf league.
Can I use my play history in that 
league to establish a Handicap in 5Gs? 







Answer: Yes, 5Gs accepts round
history played in another golf 
league. However, you must request the other league's
handicap officer to 
email your detailed round history directly to: [email protected] 
This information will be used to help establish an equitable
handicap for use in 5Gs 
tourneys, taking into account the effect of the special rules
the 5Gs uses for 
league play and any ambiguities in the other league's
handicap procedure. 







Q4.
How long does 5Gs keep round history used in the handicap 
calculation? 







Answer: At the beginning of each year 5Gs purges all round history in a 
in a players file that is older than
2 years.
Thus in Jan 2012 all history for 
year 2009 was purged from players records. This includes play history 
for people who transferred in rounds from another league to
set up their 
handicap. The next
purge will occur in Jan 2013 with year 2010 
data being deleted.
The idea is to keep only current play history which should 
result in more accurate handicaps. 







Q5.
Are players handicaps posted on the 5Gs web site? 







Answer: Yes, Handicap Indexes
for all Active and Inactive Members are posted. 
Go to the HOME page and click on the ICON labeled Member
Information 
& Statistics. 







Q6.
My handicap Index on the web site doesn't match the handicap you 
have me listed for on the TEE TIME posting. Shouldn't they be the same? 







Answer: A player has a basic handicap which is
called a Handicap 
INDEX. He only
plays to this handicap when he is playing a golf course 
rated as average difficulty. An average difficulty golf
course 
is by definition a golf course with a SLOPE rating of exactly 113. 
If he plays a golf course that has a HIGHER or LOWER slope rating
than 
113 then a second handicap is generated called a COURSE Handicap. 
The COURSE Handicap will be higher than the Handicap INDEX if the 
golf course has a HIGHER SLOPE rating than 113.
The reverse 
is true if the golf course has a LOWER SLOPE rating than 113.
We use 
a player's COURSE Handicap when we run
tournaments. Both handicaps 
are rounded down to the nearest 1/10 of a point, (example: 10.495 
would be 10.4). The
formula used to convert from a Handicap INDEX 
to a COURSE Handicap is as follows: 
Course Handicap = (Handicap Index) x (Slope of G.C. / 113) 







Q7.
Usually Men & Women play from different TEE BOXES that have
different 
SLOPES and RATINGS. Is
there any adjustment made when calculating the 
COURSE HANDICAPS to allow for this
condition? 







Answer: Yes,
5Gs uses a Course Handicap adjustment method based on 
the USGA adjustment method. 
This method is as follows:
First, the Mens & Womens Course Handicaps are 
calculated using the formula described in Q6 (above). Next,
the Difference 
between the Men's & Women's Course
Ratings is calculated. If the Women's 
Rating is BIGGER than the Men's Rating the DIFFERENCE
is ADDED to 
each Woman's Course Handicap (as calculated in Q6). However,
if the 
Women's Rating is SMALLER than the Men's Rating the DIFFERENCE
is 
SUBTRACTED from each Woman's Course
Handicap (as calculated in Q6). 







Q8.
I am playing in a golf event where they require a player to have 
a USGA handicap or the scores from their last 20 rounds. Will 5Gs provide 
my last 20 rounds of history so I can play in this event? 







Answer: 5Gs will provide to you the last 20 rounds
of your 5gs play 
history or whatever we have on file up to 20 rounds. Please give a two week 
notice to provide this information. 
Email your request to:
[email protected] 







Q9.
Is my handicap based on my Gross (actual) or Net Scores? 







Answer: Your handicap is calculated using your
ADJUSTED GROSS 
scores. This is a
term created by USGA and utilizes a method called 
equitable stroke control to adjust your ACTUAL score down to
an 
ADJUSTED GROSS score.
The method used depends on the 
COURSE Handicap you played under for
that round of golf. 
Your ADJUSTED GROSS score for a round of golf is the sum of
your hole 
scores after all hole scores have been adjusted to meet the
requirements 
shown below. 







Course 

Formula
used to determine your ADJUSTED 
Handicap 

GROSS score after a round of golf. 








0  9.9 

The worse
score a player can use for any hole 


score is a Double Bogey 









10  19.9 

The worse
score a player can use for any hole 


score is a 7 










20  29.9 

The worse
score a player can use for any hole 


score is a 8 










30  39.9 

The worse
score a player can use for any hole 


score is a 9 










40  49.9 

The worse
score a player can use for any hole 


score is a 10 










The adjusted gross scores are only used to recalculate your 
handicap index after your round. For tournaments you should 
turn in your scorecard showing your ACTUAL scores. 







Q10.
What is the formula 5Gs uses to calculate a Handicap Index? 







Answer: The formula changes depending on how many
rounds of history 
you have. 







Example 1: Player has 20 or more rounds of history. 







First Calculations: 
For each of the last 20 rounds a player has the following
calculations 
performed. 
a) Calculate a DIFFERENTIAL = Adj. Gross Score  Course
Rating 
b) Calculate a SLOPE DIFFERENTIAL = (Differential *
113)/Slope Rating 







Last Calculations: 
Then the lowest 10 rounds of SLOPE DIFFERENTIALS are averaged
and 
the result is multiplied by .96. This number is then rounded down to
the 
nearest tenth of a digit.
This number is your Handicap Index unless you 
have less than 5 rounds with 5gs over the last rolling 12mo.
period. 
If less than 5 rounds applies to your case go to the shaded
red area at the 
bottom of this section. 







Example 2: Player has less than 20 rounds 







Step 1: 
Determine how many rounds of golf will be used in the
handicap calculations 
shown in example 1 above. 







Number of
rounds 
Number of rounds 


player has on
file 
used in handicap 









16 


use only the lowest round 

78 


use the lowest 2 rounds 

910 


use the lowest 3 rounds 

1112 


use the lowest 4 rounds 

1314 


use the lowest 5 rounds 

1516 


use the lowest 6 rounds 

17 


use the lowest 7 rounds 

18 


use the lowest 8 rounds 

19 


use the lowest 9 rounds 








Step 2: Do the First Calculations (see Example 1
above) for all rounds of 
history. 







Step 3: Do the Last Calculations (see Example 1
above) for the number 
of rounds indicated in the table (see Step 1) to be used in
the handicap. 
If the number of rounds of history is more than 4, this step will result in 
your handicap index.
If you have less than 5 rounds of history 
proceed to Step 4. 







Step 4: Using Table 1 below find the number of
rounds you have with 
5Gs on the left column.
Then find the number to the right of that number 
on that same line. 
Your Handicap Index is found by multiplying the number found
in Step 3 
with the number found on the table below. 
This number is your Handicap Index unless you have less than
5 rounds 
with 5Gs over the last rolling 12 month period. 
If less than 5 rounds applies to your case go to the shaded
red area at the 
bottom of this section. 







Table 1 


Number of 
Multiply
Result from 


5Gs rounds 
Step 3 by
this number. 









1 

0.80 



2 

0.85 



3 

0.90 



4 

0.95 




Special Case Handicap Index Calculation an additional step: 







If you have played at least 5 rounds with 5Gs over the last rolling 12 month 
period your handicap index is what you calculated (using
instructions 
up to this point). 







If you have less than 5 rounds with 5Gs over the last rolling 12 month 
period an additional multiplier might be used to adjust the handicap index you 
calculated (using the instructions up to this point). 







Additional Multiplier Determination method: 







Using Table 2 below find the appropriate ADDITIONAL MULTIPLIER 
considering the total number of rounds you have with 5Gs AND
the total number 
of rounds with 5Gs over the last rolling 12 month
period. Then multiply 
the handicap index value you calculated earlier by this
number. 
The result is your FINALIZED handicap index. 







TABLE 2 
Total 

Number of 5Gs rounds 


Number of 
in last rolling 



5Gs rounds 
12 month period 

ADDITIONAL
MULTIPLIER 







1 

0 or 1 


No
Multiplier 
2 

0 or 1 


0.941 


2 


No
Multiplier 
3 

0 or 1 


0.889 


2 


0.944 


3 


No
Multiplier 
4 

0 or 1 


0.842 


2 


0.895 


3 


0.947 


4 


No
Multiplier 
5 

0 or 1 


0.800 
(or more) 
2 


0.850 


3 


0.900 


4 


0.950 














WHEW!!!! If you have
gotten this far you are to be congratulated! 
Your mind has probably turned to PUTTY or you are about to
fall asleep 
with your head on the keyboard. Sorry about that, but as you can see the 
Handicap question is not trivial. ANYWAY, the league hopes that you enjoy
golf and 
that you let your handicap take care of itself. 







If you still have handicap questions, please direct them to me via email 
at address:
[email protected] 







Jerry Chruma, 5Gs Webmaster and Handicap Officer 






