Golf Handicap Calculator -- free internet service for golf tips

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Welcome to Probable Golf's FREE Handicap Calculator!

The following Golf Handicap Calculator uses an average of your best previous rounds of golf. The USGA Course Rating and Slope Rating should be available from your scorecard or from your golf course. If not, look them up here. These will make your handicap calculation more accurate.

You must enter at least 5 adjusted scores for this calculator to accurately calculate your handicap. An adjusted score takes into account the Equitable Stroke Control system. You must also enter the course and slope ratings for the courses played.

Golf Handicap Index Calculator (18 holes)
This interactive web calculator will help you to compute your 18-hole handicap index for scores posted from multiple golf courses (for courses that are over 3,000 yards). Enter the the USGA course Rating and Slope for the tees you play (usually located on the score card), and the adjusted score posted for each of a minimum of 5 of your most recent rounds, then click the "Compute Handicap Index" button.
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Handicap Index

How a USGA golf handicap is calculated.

A USGA Handicap Index is a USGA mark that represents the potential ability of a player on a course of standard difficulty. Potential ability is measured by a player's best scores, and is expressed as a number taken to one decimal place. These scores are identified by calculating the handicap differential for each score. The USGA Handicap Index is calculated by taking 96 percent of the average of the best handicap differentials, and applying Section 10-3 for golfers with two or more eligible tournament scores.

10-1. How to Determine Handicap Differentials

A handicap differential is computed from four elements: adjusted gross score, USGA Course Rating, USGA Slope Rating and 113 (the Slope Rating of a course of standard difficulty). To determine the handicap differential, subtract the USGA Course Rating from the adjusted gross score; multiply the difference by 113; then divide the resulting number by the USGA Slope Rating. Round the final number to the nearest tenth.

Handicap Differential = (Adjusted Gross Score - USGA Course Rating) x 113 / USGA Slope Rating

When the adjusted gross score is higher than the USGA Course Rating, the handicap differential is a positive number.

NOTE: this is not an official handicap calculation and can not be used as such, even though it is calculated using the correct methods and formula.

The new way to adjust scores with Equitable Stroke Control sets a maximum number that a player can post on any hole depending on the player's Course Handicap.

If you're out of a hole and pick up to speed up play, jot down the score you most likely would have made.

For Handicap purposes, you are required to adjust your hole scores (actual or probable) when they are higher than your maximum number you can post.

There is no limit to the number of holes on which you can adjust your score.

For example, Woodstock and I played a match at Beagle Haven Country Club from the beagle tees. My USGA Handicap Index is 11.6 and my Course Handicap is 13, which allows me a maximum number of 7 on any hole when posting my score for Handicap purposes. Woodstock has an 18.2 index and a Course Handicap of 20, which allows him a maximum number of 8 on any hole when posting for Handicap purposes.

Adjust Your Scores With Equitable Stroke Control

18-Hole Course Handicap	Maximum Number Posted on Any Hole
9 or less	Double Bogey
10 through 19	7
20 through 29	8
30 through 39	9
40 or more	10

Scan your score card for any hole where your score (actual or probable) is higher than your maximum number.

Reduce these higher scores to your maximum number for handicap purposes.

Post your adjusted score.

Scratch Golfer

is one whose proficiency is such that the better half of his scores will equal the equivalent of what the better half of the US Amateur Championship field scores. This golfer can really hit it.

Bogey Golfer

is one with a USGA Handicap Index® of 17.5 to 22.4 (21.5 to 26.4). He (she) can hit tee shots an average of 200 (150) yards and can reach a 370 (280) yard hole in two shots. This golfer hits it more than once to get it to the hole.

Course Rating

The USGA® mark that indicates the evaluation of the playing difficulty of a course for scratch golfers. It is based on yardage and other obstacles to the extent that they affect the scoring difficulty of the scratch golfer. Example: 68.5

Bogey Rating

the one number every golfer worse than a scratch should check before deciding which tees to play. This rating is the evaluation of the playing difficulty of a course for the bogey golfer. It is based on yardage, effective playing length and other obstacles to the extent that affect the scoring ability of the bogey golfer. To figure out this number, other than from looking at this database, the bogey golfer should take the Slope Rating®, divide it by the set factor (5.381 for men, and 4.24 for women) and add that to the Course Rating. The result is a target score for the bogey golfer, and is a truer yardstick of the challenge that lies ahead for the particular set of tees. Example: 96.3- which predicts the bogey golfer's average of his ten best (out of twenty) scores would be approximately 96.3 from this particular set of tees.

Slope Rating

the USGA mark that indicates the measurement of the relative difficulty for the bogey golfer compared to the Course Rating. Slope Rating is computed from the difference between the bogey rating and the Course Rating. The lowest Slope Rating is 55 and the highest is 155. Example: 125

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