Guides / Golf Handicaps Explained

Slope Rating and Course Rating Explained

Slope Rating measures how much harder a course plays for a bogey golfer relative to a scratch golfer. It runs on a scale from 55 to 155, and 113 is the neutral standard. It sits on every scorecard next to a decimal called the Course Rating, and decoding the pair will help you pick better tees, set smarter targets, and understand why your handicap moves the way it does.

Where to find the numbers

Look at the tee section of any scorecard. Next to each set of tees, alongside the yardage, you will usually see two extra figures: the Course Rating (a number with a decimal, often close to par) and the Slope Rating (a whole number, often in the 110s to 130s). Some cards print them as a pair, like "71.2 / 131".

If they are not on the card, check the plaque or sign near the first tee, the club's website, or the course listing in your handicap app or your golf association's course database. Every rated set of tees has both numbers, and they can differ for men and women from the same tees, so make sure you are reading the right row.

Course Rating: what a scratch golfer would shoot

Course Rating is the score a scratch golfer (a player with a handicap of zero) is expected to shoot on that course, from those tees, under normal course and weather conditions. It is expressed in strokes, to one decimal: 71.2 means a scratch golfer is expected to shoot about 71.2.

That makes Course Rating a measure of absolute difficulty, and a far better one than par. Two courses can both be par 72 while one is rated 69.8 and the other 74.5. The first plays more than two shots easier than par for an expert; the second plays more than two shots harder. Same par, nearly five strokes of real difference.

There is a sibling number you will rarely see printed but should know exists: the Bogey Rating. It is the same idea measured for a bogey golfer, roughly a 20 handicap, instead of a scratch golfer. The Bogey Rating is always higher, and the gap between the two numbers is where Slope comes from.

Slope Rating: how fast the course gets harder as handicaps rise

Slope Rating measures how much harder a course plays for a bogey golfer relative to a scratch golfer. It comes from the gap between the Bogey Rating and the Course Rating. A wide gap means the course punishes the average player far more than the expert, and that produces a high Slope. A narrow gap produces a low one.

Slope runs on a scale from 55 to 155, and 113 is the neutral standard. A slope of 113 means the course stresses a bogey golfer and a scratch golfer in normal proportion. Above 113, the course leans harder on the higher handicapper. Below it, the course is unusually forgiving to the average player.

Here is the mistake almost everyone makes: reading a big Slope as "this course is brutally hard." Slope says nothing about absolute difficulty on its own. A short course full of forced carries, deep bunkers, and water can carry a modest Course Rating (the scratch player just flies the trouble) and a scary Slope (the bogey golfer finds every hazard). Meanwhile a long, open course can be genuinely hard for everyone and still have an ordinary Slope, because it is hard for everyone equally.

The quick decoder, all four numbers side by side:

Two courses, same rating, different slope

Take two invented courses to make it concrete. Both are par 72, and both carry a Course Rating of 71.8 from the tees you play. On paper they look like twins.

The scratch golfer barely notices the difference: the Course Rating is identical, so their expected score is identical. The 20-handicap absolutely notices. Every forced carry that a scratch player flies without thinking is a ball in the ravine for the average player, and the Slope of 139 is the system's way of saying so in advance.

So when a playing partner says "that course is a 139 slope, it must be a monster," you now know the right follow-up question: what is the rating? High slope with a modest rating means it is a monster for you specifically, not for everyone.

Why your Course Handicap changes from course to course

This is where the numbers stop being trivia and start paying for your attention. Your Handicap Index is a portable measure of your potential, but the strokes you actually receive on a given day, your Course Handicap, change with every course and every set of tees, and Slope is the main lever. Play somewhere with a high Slope and you receive more strokes; move up to a set of tees with a lower Slope and you receive fewer. Same golfer, same Index, different number on the card.

That is not a quirk. It is the whole point of the system: the extra strokes offset exactly the extra punishment the course deals to players like you, so a match between a 5 and a 20 stays fair whether it is played at Meadow Flats or Ravine Run. The full conversion, with the formula and a worked example, is in our guide to Course Handicap versus Playing Handicap.

The ratings also work backward on the scores you post. When a round enters your handicap record, the system adjusts it for the rating and slope of the course you played, which is why a 92 on a hard course can improve your Index more than a 90 on an easy one. The mechanics are in how a golf handicap is calculated.

How the ratings are set

Ratings are not the head pro's opinion. They come from trained rating teams, licensed by golf's governing bodies, who assess each set of tees using a standardized procedure. The team measures how long the course effectively plays, not just the yardage on the card, and evaluates the obstacles in play: bunkers, water, out of bounds, rough, trees, and the difficulty of the greens. Crucially, they evaluate everything twice, once from the scratch golfer's landing zones and once from the bogey golfer's, which is exactly what makes a separate Bogey Rating and a Slope possible.

Rating teams re-rate courses periodically, so the numbers stay honest as trees grow, bunkers move, and tees shift. For you, the takeaway is simple: the two numbers on the card are the product of a consistent, worldwide system, which is what makes them comparable from one course to the next.

Use the numbers: pick tees and set targets by rating, not par

Two practical habits fall straight out of all this.

Pick your tees with the ratings, not your ego

Every set of tees on a course has its own Course Rating and Slope. Moving up a set does not just shorten the course, it usually lowers both numbers, which means fewer forced carries, fewer unreachable par 4s, and a fairer fight. The handicap system fully accounts for the move, so there is no asterisk on your score. Our guide to choosing golf tees covers how to pick the right set for your driver distance.

Set your target from the rating, not from par

If you usually shoot 92 at your home course and today's course is rated two strokes higher with a bigger Slope, walking off with a 95 is not a bad round, it is exactly on form. Golfers who anchor to par judge themselves against a number that ignores difficulty entirely, then press, chase, and turn a fair score into a blow-up. Anchoring to the rating is the first move of good course management: it tells you before the first tee whether today is a day to attack or a day to be patient.

The numbers on one card

• Course Rating: the score a scratch golfer is expected to shoot under normal conditions, in strokes (71.2 means about 71.2).
• Bogey Rating: the same measure for a bogey golfer. Always higher.
• Slope Rating: how much harder the course plays for a bogey golfer relative to scratch, from the gap between those two ratings. Scale 55 to 155, neutral at 113.
• High slope does not mean hard for everyone. It means hard for higher handicaps specifically. Rating measures absolute difficulty; Slope measures the spread.
• Your Course Handicap changes with the tees because the ratings do. That is the system working, not a glitch.
• Pick tees and set your target score from the ratings, never from par.