How to Calculate Course & Slope Rating
While course ratings are a measure of the difficulty of a course, slope ratings are a measure of how much more difficult a course is for a high handicap golfer versus a lower one. For example, if you have two courses that each have a course rating of 72, they should be the same difficulty for a scratch golfer.
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.
The Course Rating is calculated from the effective playing length and obstacle factors for 9 or 18 designated holes. The Course Rating is expressed in strokes to one decimal point and represents the expected score for a scratch player. The Bogey Rating represents the expected score for a bogey player.
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 Rating is calculated from the effective playing length and obstacle factors for 9 or 18 designated holes. The Course Rating is expressed in strokes to one decimal point and represents the expected score for a scratch player. The Bogey Rating represents the expected score for a bogey player.
The first thing many golfers do when they arrive at the golf course is check the score card for the slope rating. Most scorecards will have the slope rating printed on them. There is a separate slope rating for each of the different tee boxes on the course. The average slope rating of a golf course is typically 113.
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.
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.
The handicap index is an average of golf round scores and has its own calculation. This formula requires you to sum your differentials and divide these by the number of differentials used, and then multiply the result by 0.96.
The 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.
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.
The actual calculation is as follows: 9-Hole Score Differential = (Adjusted Gross Score for 9 holes x 113/Slope Rating + second nine par + 0.5 x Course Handicap) – Course Rating.
A player's Course Handicap is determined by multiplying their Handicap Index by the the Slope Rating and dividing by the neutral Slope Rating of 113.
Course Handicap Calculation Pre-2020 the calculation to find the Course Handicap was: Handicap Index X Slope Rating/ 113. The new calculation for Course Handicap will be Handicap Index x (Slope Rating/113) + (Course Rating- Par). The reason for this change is to accommodate players who play off different tees.
To calculate a golf handicap for 9 holes, you simply divide the Course Rating and Slope Rating by 2 and use the formula (56.5 / Slope Rating) x (Adjusted Gross Score – Course Rating – PCC adjustment) to calculate your Score Differential for the 9 hole score.
A golf course rating tells you what a scratch golfer would be expected to shoot from the tees they're playing on a particular course under normal conditions. The rating is different for men and women.
The golf course slope is a measure of a course's difficulty, but it is not considered the better of the two measurements. Golf course slope is actually derived from the golf course rating. Slope is a measure of a golf course's difficulty in a relative comparison of a scratch golfer to a bogey golfer (someone who shoots around 90 for 18 holes).
A male scratch golfer, for rating purposes, can hit tee shots an average of 250 yards and can reach a 470-yard hole in two shots.". A scratch woman can "can hit tee shots an average of 210 yards and can reach a 400-yard hole in two shots at sea level.".
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.
Using a Slope Rating Chart to Estimate Golf Course Slope A Golf Course Sinking Index, or GSIs, is the aggregate slope factor on a golf course, as opposed to a single Grade Point Average (GPA) for the golf course, also called the wind factor.
slope chart golf, like most other sports, relies heavily on the strength and accuracy of one’s swing. The complexity of the game increases significantly when you add the other players and terrain obstacles to the equation.
Golf is a sport that has been around for centuries. Whether you’re just starting out or have years of experience, this can help you figure out which clubs are best suited to your needs.
The Slope Rating reflects the relative difficulty of a course for players who are not scratch golfers in comparison to scratch golfers. Golfers use the Slope Rating, a trademark of the United States Golf Association, to calculate handicap differentials. The rating falls between 55 and 155; the higher the number, the more challenging the course.
Golfers typically don't have access to the information used to calculate the Slope Rating, but understanding the formula makes the rating less confusing.
While frequently unused by new or casual golfers, slope and course rating are two of golf’s most important, and most commonly confused numbers. These two numbers might be a seemingly random arrangement of numbers on your scorecard, but in reality , they are two of the great equalizers in the game of golf.
While the course and slope ratings of a golf course are unlikely to change dramatically, they are usually re-evaluated every 4-5 years.
The simple answer is, a course rating is a number that indicates what a scratch golfer (a golfer that averages par for a round) should shoot on this particular course. So, while the par for a particular course might be 72, a course rating of 70.1 would indicate that a scratch golfer should be almost two under par on average.
However, if bogey-golfers on course A averages a score of 90 while bogey-golfers on course B average a score of 95 the slope rating for course B would be higher than for course A; indicating a higher level of difficulty for higher handicap players.