GHIN handicap for shooting -100 at torrey pines

[neophyte]

If I signed up for GHIN and then played Torrey Pines twenty days in open conditions and entered over twenty scores of 90 to 99 in GHIN what would my handicap be calculated to be?

[Finn07]

You'd have to find out what the course rating and slope rating would be for Open conditions first before being able to answer that.

[beisenhauer]

The south course at Torrey Pines is rated 78.1/143 from the tips (~7600 yards). If your best 10 scores averaged about 93, your handicap would be an 11.0.

(93 - 78.1) x (113 / 147) x 0.96 = 11.0

Of course, this doesn't take into account the U.S. Open setup, but I don't think they publish a rating and slope for that. If, hypothetically, the Open setup increased the slope rating to 165, your handicap would be 9.8.

[iacas]

The south course at Torrey Pines is rated 78.1/143 from the tips (~7600 yards). If your best 10 scores averaged about 93, your handicap would be an 11.0.

155 is the stated maximum, but there's basically an infinite amount of room to move in the course rating portion of the equation.

[underparnv]

The south course at Torrey Pines is rated 78.1/143 from the tips (~7600 yards). If your best 10 scores averaged about 93, your handicap would be an 11.0.

I believe you are missing a set of parenthesis:

(((93 - 78.1) x 113) / 147) x 0.96 = 10.9 GHIN states that you drop the decimal...not round up/down Math gurus...correct me if I'm wrong with the above (as I may very well be!)

[iacas]

(93 - 78.1) x (113 / 147) x 0.96 = 11.0

(((93 - 78.1) x 113) / 147) x 0.96 = 10.9

Same thing. You only differ on what you've done with the decimals. beisen rounded, you didn't (properly).

I believe you are missing a set of parenthesis:

You're multiplying and dividing. It doesn't matter what order you do it in, really, so long as you get the subtraction done first (and don't multiply 0.96 by a divisor, as in (147 * 0.96). Multiplication and division are commutative.

X * (113/147) = (X * 113)/147 = (X/147) * 113. All the same. Again, you two just differed on the decimal/rounding.

[underparnv]

Same thing. You only differ on what you've done with the decimals. beisen rounded, you didn't (properly).

Got ya...thanks for the clarification.

[beisenhauer]

GHIN states that you drop the decimal...not round up/down

Didn't know that. My bad. Thanks.

[michaeljames92]

B.I.M.D.A.S. Brackets indicies multiplication addition subtraction

[907golfer12]

...Multiplication and division are commutative...

Actually division is not commutative:

10/2= 5 2/10= .2

[golfunit]

B.I.M.D.A.S. Brackets indicies multiplication addition subtraction

michael - in the US: PEMDAS Parentheses, exponents, multiplication division addition subtraction

Also, if division is done as multiplying by the inverse, it is commutative. e.g. 10/2 = 10 * 1/2 = 1/2 * 10

[iacas]

Also, if division is done as multiplying by the inverse, it is commutative.

Right. Since all you're doing in this is dividing and multiplying, it's commutative in this situation.

Could have been more clear.