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Can someone explain how GHIN actually works?

Posted on 4/15/21 at 8:30 am
Posted by jgoodw318
Bossier City
Member since Sep 2013
1103 posts
Posted on 4/15/21 at 8:30 am
I’m kinda confused in how my handicap is what it is. For most of the year I’ve been a 16.2. But recently my index jumped up to a 17.4 after shooting one of the lowest scores of my life. My last twelve scores are as follows:

96, 88, 96, 94, 91, 96, 93, 100, 105, 95, 93, 86

86 being the last round I played and when it jumped from 16.4 to 17.4. The rounds I didn’t break 100 were on a buddies trip and I was a tad inebriated for them. 4 of the 12 were on the buddies trip, every other score was at my home course. Can someone help me understand how it works please?
Posted by ell_13
Member since Apr 2013
85134 posts
Posted on 4/15/21 at 8:37 am to
Your handicap is basically the average of your 8 lowest scores out of your last 20.

But there are other factors at play. The slope based on the tees you play is a big one. If you shoot 95 from the tips, that could lower your handicap compared to shooting 90 from the Men’s tees. So it also depends on the course and tees.
Posted by jpggpj
Chair
Member since Oct 2005
3991 posts
Posted on 4/15/21 at 8:38 am to
I'm sure someone can explain better about the calculation but I do know that it doesn't use all of your scores. If you go to your "STATS" page and look at all of your scores, only the ones with * by them are the ones used for calculating your handicap. I'm not sure how it picks which rounds to use but I do know that not all are used. I doubt this clears anything up for you but at the least it is a bit of more useless information I guess....
This post was edited on 4/15/21 at 8:39 am
Posted by Toula
504
Member since Dec 2006
35399 posts
Posted on 4/15/21 at 8:59 am to
It uses your last 20 rounds. So a lower asjusted score must have dropped off when you posted the 86.
Posted by GRTiger
On a roof eating alligator pie
Member since Dec 2008
63214 posts
Posted on 4/15/21 at 3:42 pm to
Handicap index is kind of a hybrid average of the lowest score differentials.

Calculate your score differentials like this:

(113/Slope) x (adjusted gross score - course rating - PCC adjustment)

Most of us likely don't have to worry about adjustments, so simplified it is just:

(113/Slope) x (Score - Course Rating)


Depending on how many rounds you have to calculate, you would take some version of the average of your lowest differentials.

3 differential: Lowest differential minus 2
4: Lowest differential minus 1
5: Lowest differential
6: Average of lowest 2 differentials minus 1
7-8: Average of lowest 2 differentials
9-11: Average of lowest 3 differentials
12-14: Average of lowest 4 differentials
15-6: Average of lowest 5 differentials
17-18: Average of lowest 6 differentials
19: Average of lowest 7 differentials
20: Average of lowest 8 differentials

That will give you an index. From there, you can find calculators online that would allow you to enter your index and the slope and rating of the course you are going to play, and it will generate your cap for that course.
This post was edited on 4/15/21 at 3:45 pm
Posted by RedShirt
Rant's foremost authority on LSU
Member since Apr 2005
1046 posts
Posted on 4/16/21 at 8:35 am to
Based on differential which takes into account slope, etc
Posted by icegator337
Lafayette
Member since Jan 2013
3507 posts
Posted on 4/16/21 at 8:51 am to
quote:

Can someone explain how GHIN actually works?

It is something that people lie about and put fake scores in so they can cheat other honest people. See Daniel Theriot at 2018 LGA net am
Posted by go ta hell ole miss
Member since Jan 2007
13661 posts
Posted on 4/16/21 at 12:53 pm to
quote:

The rounds I didn’t break 100 were on a buddies trip and I was a tad inebriated for them


GHIN doesn’t factor in inebriation.
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