How to Calculate Slope Rating
The slope rating of a golf course is a measure of its difficulty for bogey golfers. The term comes from the likelihood that when playing on more difficult courses, players’ scores will rise more quickly than their handicaps would predict. The “slope rating” of a course thus predicts that rise.
How to Calculate Slope Rating
It is always a number between 55 and 155, with 113 being the "standard" slope. You calculate slope rating by finding the bogey rating, which is like the course rating, but measured for a bogey golfer. Then subtract the course rating from that figure. Then multiply that figure by 5.381 for men and 4.24 for women.
The Course Slope predicts the difficulty of a course for a “bogey” golfer, someone who shoots 18 over par or 90. Course Slope is a number between 55 and 155, with 113 being the average. The higher the number the more difficult the course. As with course rating each set of tees will have a slope rating.
Slope merely tells you how “proportionately” more difficult that particular set of tees plays for the higher handicapped golfers as opposed to lower handicapped golfers. The more difficult the tees play proportionately for the higher handicappers, the greater the Slope rating that will be issued. That's it!
USGA Handicap System (pre-2020)U: A Course Handicap represents the number of strokes a player receives in relation to the UCourse RatingU of the tees being played. The formula is: Course Handicap = Handicap Index x Slope Rating / 113.
If you see a slope rating that falls anywhere in the double digits, you can expect that course to play rather easy, even for a bogey golfer. On the other hand, taking on a course with a slope rating in the 130's or 140's is going to present a serious challenge to a player with a mid or high handicap.
What is a hard slope rating? If we know that the average slope rating of a golf course is 113, we can deduce that any golf course with a slope rating higher than 113 is more difficult than the average course. Don't be intimidated if you see a slope rating that is above 113.
Handicap differential = (Adjusted Gross Score-rating of the course) X 113 / Course slope ratings. The course rating is simply the scores of a new golfer on a normal course under a normal playing condition. Slope rating is the rating of 113 for a course based on the standard difficulty.
What is Slope Rating? The course's Slope Rating indicates the difficulty of a golf course for a 'bogey' golfer (20 handicapper for a man, 24 for a woman) relative to a scratch player. So essentially, the difference in difficulty of the course between a scratch and bogey player make up the Slope Rating.
120The higher the slope number, the harder the course is for the bogey golfer relative to the difficulty of the course for the scratch golfer. Slope numbers can range anywhere between 55 and 155 with the average slope in the United States being 120.
Use the following formula to compute the Handicap Differential: Handicap differential = (The Adjusted Gross Score -The Course Rating) X 113 / The Course slope ratings. The course rating refers to the score of a new golf player on a course under standard playing conditions.
To quickly figure out what your handicap should be, you need to subtract your number of strokes with the overall Course Rating. For example, on an average par-72 course, if you were finished with 100 strokes, you would subtract 72 from 100 and receive a handicap of 28.
If you shoot between 81 and 85, your handicap will be between 6 and 9. If you shoot between 86 and 91, your handicap will be between 10 and 13. If you shoot between 92 and 97, your handicap is between 14 and 19. If you shoot between 98 and 101, your handicap is between 20 and 24.
The USGA evaluates many elements of a golf course to determine its Course Rating. Course and slope ratings are calculated by the United States Golf Association. In fact, the USGA trademarks and licenses its USGA Course Rating and USGA Course Slope Rating to the Royal Canadian Golf Association -- countries other than America ...
A Course Rating measures the difficulty of a golf course and is a crucial component in determining a player's handicap. The Slope Rating measures the difficulty of a golf course for a bogey golfer. The Course Rating and the Slope Rating typically are printed on the scorecard for a golf course.
A typical scratch golfer, as defined by the USGA, hits 250-yard drives and can reach a 470-yard hole in two strokes. A typical female scratch golfer hits drives 210 yards and can reach a 400-yard hole in two strokes.
Slope Rating is described by the USGA as demonstrating the “measurement of the relative playing difficulty of a course for players who are not scratch golfers, compared to scratch golfers”. The higher a course’s Slope Rating, the higher the expected difference of scoring between a scratch golfer and a bogey golfer.
To determine the Slope Rating for a course requires two key numbers – Course Rating and Bogey Rating. The Course Rating is the evaluation of the playing difficulty of a golf course for the scratch player (0 handicap.) The Bogey Rating is the evaluation of the difficulty of a course for a bogey player of 20-24 handicap.
113 is the average Slope Rating signifying a course of standard relative difficulty. The number 113 is used in calculating a player’s Course Handicap. Each player with a WHS Handicap Index can calculate their Course Handicap for any course by dividing the Slope Rating of that course by 113 and multiplying that number by their Handicap Index.
The United States Golf Association established the average slope rating to 113, but it has later increased to about 120 as there aren’t many 18-hole golf courses with slope ratings set that low. As has been observed, most golf courses worldwide have average slope ratings of about 120.
What is USGA Golf Course Rating and Who Rates It? USGA Golf Course Rating is an assessment of the difficulty of a given golf course for scratch golfers. The course rating estimates the scratch golfers’ average scores who played on the golf course under the rating procedure.
Thus, the slope number converts a golfer’s handicap into a course handicap. In this way, it is made sure that a bogey golfer is allowed to play at an equal level to a scratch golfer, and it helps them obtain enough strokes from the same set of tees. This is the mathematical formula of how it is derived:
It is expressed in strokes, so an easy par-72 golf course could have a 68.9 course rating, while the more difficult one is likely to have a rating of 74.5. In other words, an average golfer should expect to play 68.9 strokes when the course playing difficulty is rated ‘easy,’ while on a challenging course, the same golfer is expected ...
USGA introduced the slope rating measurement in the 1980s as a system of fairness directed to bogey players. Namely, they observed that a bogey golfer is likely to increase the number of strokes considerably more when playing on a course with a higher level of difficulty than a scratch golfer. This led to creating a slope handicap system ...
Yes, they do. However, the course rating impacts the golfer’s index considerably more than the slope number. It often happens that players become too focused on the slope number while ignoring the golf course number.
A golf course rating is a number that tells you what a scratch golfer should be shooting at that golf course. Scratch golfers are known for their ability to shoot par on a golf course. However, not all golf courses are made to be the same difficult.
The slope rating is a number that indicates how challenging a golf course is for a bogey golfer. Of course, nothing in golf is quite that simple, so the slope rating is not as easy to figure out as the course rating. When we looked at the course rating, you saw that the number kind of coincided with what par is on the course.
Now that you have a better understanding of what course and slope ratings are, it’s a good idea to try and understand the importance of these numbers. The slope rating and course rating can be used for several different reasons that help make the game of golf fair and fun for everyone involved.
Now that you have a bit more understanding of the slope rating and course rating, here are a few of the questions that are often asked about this process. Don’t feel bad if you don’t fully understand the USGA handicap system. There is quite a bit involved in this, and sometimes it takes a while to get used to the concepts.
Hopefully, you now understand the concept of course and slope rating. This is not something that you will need to fully understand to play well the next time you hit the course. However, it is good to have an overall awareness of how these systems work.
The Course Rating is the evaluation of the playing difficulty of a golf course for the scratch player (0 handicap.) It is used in conjunction with the Bogey Rating, (the difficulty of the course for a bogey player of 20-24 handicap) to determine the Slope Rating. The Slope Rating will determine a player’s Course Handicap.
Course Rating and Bogey Rating are calculated using the USGA Course Rating System. The Course Rating System is extremely objective and takes into account all the factors that affect the playing difficulty of a course.
Course Rating and Slope Rating affect Course Handicap. Each player with a WHS Handicap Index will play off a different Course Handicap at different venues, and off different tees, depending on the Slope Rating. Course Handicap is calculated by dividing Slope Rating by 113 and multiplying by Handicap Index.
There’s not really such a thing as an average Course Rating but there is an average, or standard, Slope Rating – the difference between Course Rating and Bogey Rating multiplied by a predetermined value – The average or standard Slope Rating is 113.
The first use of slope is essentially a measure of how difficult a course is relative to others. You might be playing on a par 72, but that doesn’t make it as much of a challenge as say, Augusta National and its par 72. A slope number simply allows you to know, at least to some extent, what the difference really is.
Well this is all well and good, but how is this number calculated? Well technically, the number represents how much more difficult a given set of tees is for a bogey player in relation to scratch handicapper. You might think that this difference is fairly constant, but that isn’t the case at all.
There is obviously a deal of subjectivity in this rating. After all, golf isn’t an exact science.
This might seem relatively straightforward, at least in theory, but this is when we hit problem. Slope is also used to mean something completely different. Confusing, right? Slope is part of a variable when calculating distance as I explained in another article.
This is where our second definition of slope comes into play. You may have heard of a slope function on a rangefinder. This gives you an adjusted yardage based on the difference in elevation between where you are and where you want to go by using some fancy tech to essentially give an angle up or down which is used to adjust the distance.