Shooting 100 is a major milestone in golf, and if you're consistently posting scores around that number, you're likely curious about what your 'official' handicap would be. Understanding your handicap isn't just about showing off to your friends, it's the key to tracking your progress, playing fair matches, and truly measuring your skill. This article will break down exactly how to calculate the handicap of a 100 golfer, explain what that number really means for your game, and offer practical advice to help you start your journey toward breaking 100.
What Does It Mean to Be a "100 Golfer"?
First, let’s get on the same page. Hitting a score of 100 is a significant barrier in golf. Breaking it means you’re moving from the beginner phase into an intermediate level of play. A golfer who regularly shoots around 100 typically has a game characterized by a few things:
- Inconsistency: One hole might be a well-struck drive and a decent approach for a bogey, while the next might involve a tee shot into the trees, a couple of hacks to get out, and an eventual triple-bogey.
- The Blow-Up Hole: Most rounds for a 100 golfer include one or two "disaster" holes - a 9 or even a 10 - that bloat the final score.
- Short Game Struggles: Three-putts (or even four-putts) are common, and getting the ball up-and-down from around the green is a rare accomplishment.
- A Few Good Shots: A 100 golfer isn't hitting bad shots all day. They hit plenty of solid shots that keep them coming back, but they're often spaced between penalties or mishits.
Essentially, shooting 100 means you averaged a score of about 5.5 on every hole of a par-72 course. That's a mix of bogeys, double bogeys, and the occasional triple bogey or worse. The official term for a golfer who averages one over par per hole is a "bogey golfer," who would shoot around a 90 (18 bogeys on a par-72). So, a 100-shooter is still on the higher side of that benchmark, but closing in.
Why Your Handicap Is NOT Your Average Score
This is the most common misunderstanding in golf. Your Handicap Index isn’t a simple average of your last 20 rounds. If you average a score of 100, your handicap will actually be lower than 28 (which is 100 - 72). Why?
The World Handicap System (WHS) is designed to measure your potential, not your average performance. It calculates your handicap based on the average of the best 8 of your last 20 rounds. The system essentially asks, "On a good day, what is this golfer capable of scoring?" It purposefully throws out your worst scores - those days when you couldn't find a fairway and every putt lipped out - to get a truer reflection of your skill.
Furthermore, the calculation isn't based on your raw score alone. It's measured against the specific difficulty of the course you played, using two very important numbers: the Course Rating and the Slope Rating.
Understanding Course Rating and Slope Rating
Every official golf course has a Course Rating and a Slope Rating assigned to it. These numbers are what allow you to take a score from an easy course and compare it apples-to-apples with a score from a difficult one. Think of them as the great equalizers of golf.
Course Rating
What it is: Course Rating is an estimate of what a "scratch" golfer (a player with a 0 handicap) is expected to shoot on that course. A typical par-72 course might have a Course Rating like 71.4 or 72.8. If the rating is 71.4, it means the course plays slightly easier than its par for a scratch player. If it's 72.8, it plays a bit harder.
For the 100 Golfer: The course rating gives you the baseline for measuring your performance. If you shoot 100 at a course with a 72.0 rating, you played 28 strokes over what a scratch golfer would be expected to shoot.
Slope Rating
What it is: Slope Rating measures the relative difficulty of a course for a "bogey golfer" compared to a "scratch golfer." A higher Slope means the course gets disproportionately harder for higher-handicap players. The scale ranges from 55 to 155, with 113 considered average difficulty.
For the 100 Golfer: This number is huge for you. A course with a high slope (e.g., 140) means there's a lot of trouble - forced carries over water, tight fairways, fast greens - that will punish mishits much more severely. A low slope course (e.g., 105) is more forgiving. You’ll score much better on the low-slope course even if the Course Ratings are identical.
Calculating the Handicap for a 100 Golfer: A Real Example
Let's walk through an example. Imagine you just finished a round and shot a clean 100.Here are the course details from your scorecard:
- Your Gross Score: 100
- Course Rating: 71.5
- Slope Rating: 125 (a little harder than average)
Before we can do anything, we need to adjust your score.
Step 1: Adjust Your Gross Score (AGS)
The handicap system includes a built-in "disaster avoidance" mechanism called Net Double Bogey. This prevents a single blow-up hole from skewing your handicap. Your maximum score on any hole for posting purposes is a Net Double Bogey, calculated as: Par of the hole + 2 + any handicap strokes you receive on that hole.
As a beginner without an established handicap, you can use a simpler method initially: just cap your maximum strokes per hole. In this example, let's say on the par-4 7th hole you scored a 9. While honest, that triple-bogey-plus is what we call a "blow-up." For our adjustment, let’s assume for now your max score would be closer to a triple bogey. However, to keep it simple, for a new golfer calculating their initial handicap, you can often just use your gross score unless there are outlier holes with 10s or 11s. For this example, let's pretend your 100 was "clean" with no scores higher than an 8. So our **Adjusted Gross Score (AGS) is still 100.**
Step 2: Calculate Your Score Differential
Next, we use a formula to determine the "Score Differential" for that specific round. This number represents your performance on that day, standardized against an average course.
The formula is: (Adjusted Gross Score - Course Rating) x (113 / Slope Rating)
Plugging in our numbers:
- (100 - 71.5) x (113 / 125)
- 28.5 x 0.904
- Your Score Differential = 25.764
See? Even though you shot 28 strokes over the scratch rating (100 - 71.5. = 28.5), your Score Differential for the day is a lower 25.7 because the course was harder than average (Slope of 125).
Step 3: Calculating the Handicap Index
You can't get a Handicap Index from a single score. You need to post at least a few scores (the system can work with as few as three). Let’s imagine you played 20 rounds with these kinds of results, and the system identified your 8 best Score Differentials, which were:
25.7, 24.9, 26.1, 25.5, 27.0, 24.8, 26.3, 25.1
The system averages these 8 differentials:
(25.7 + 24.9 + 26.1 + 25.5 + 27.0 + 24.8 + 26.3 + 25.1) / 8 = 25.68
And there it is. Your official Handicap Index would be **25.7**.
So, the direct answer: a golfer who consistently shoots around 100 on a course of average difficulty will have a Handicap Index of approximately 24 to 28. Your handicap reflects what you're capable of on your better days.
How to Go from Shooting 100 to 90
Knowing your handicap is one thing, lowering it is another. For a 100 golfer, the path to breaking 90 isn't about perfectly flushed every shot. It's about damage control and smarter play.
1. Eliminate the "Others"
Your scorecard is probably littered with "others" - scores of triple bogey or worse. The fastest way to break 100 is to turn those 8s and 9s into 6s and 7s. This almost always comes down to course management.
- Stop hitting driver on every par 4/5. If a fairway is tight or has hazards, take a hybrid or long iron to give yourself a better chance of being in play.
- Play for the middle of the green. Stop aiming for sucker pins tucked behind a bunker. Hitting the green, even 30 feet away, is infinitely better than being short-sided in the sand.
- Take your medicine. When you hit a ball into the trees, don't try the one-in-a-million miracle shot through a tiny gap. Just punch out sideways back to the fairway. This turns a potential 9 into a bogey or double bogey.
2. Master the 50-Yard Shot and In
You can save a massive number of strokes with a competent short game. Getting good from this range completely changes your mentality. You no longer have to panic about hitting every green in regulation. Focus on two things:
- Learn one reliable chip shot. Take your 8-iron or 9-iron and practice hitting low, running chip shots that land on the green and roll toward the hole. It's much simpler and more predictable than trying to fly a wedge perfectly.
- Practice lag putting. The goal of any putt outside of 20 feet isn't to make it, but to get it inside a 3-foot circle around the hole. This will eliminate three-putts, which are huge score killers.
Final Thoughts
Figuring out your handicap as a 100 golfer confirms what you already feel: you have room to improve, but you're also capable of putting together solid stretches of golf. A handicap in the mid-to-high 20s is a fantastic starting point for any golfer, giving you a clear benchmark to track your progress as you work on smarter course management and a sharper short game.
Getting better at course management means making smarter, more confident decisions. I built Caddie AI to help you with exactly that. When you're standing on a tricky tee or facing a tough recovery shot, you can get instant, expert advice on how to play the hole. Instead of guessing, you get a clear strategy to avoid trouble and play the percentages, turning those potential blow-up holes into manageable bogeys and putting you on the fast track to breaking 100.