Each hole that you play gives you 4 points. Then CNDR adds 1 point for each stroke that you are better than the hole difficulty. It removes 1 point for each stroke that you are worse. Your rating is the sum of these points for your last 250 holes. A golfer who plays at the tour baseline for 250 holes has a rating of 1000.
A golf rating must be fair across different courses. A score of 80 on a short, easy course is not equal to a score of 80 on a long, difficult course. Because of this, CNDR does not use your score to par. It compares each hole with the difficulty of that hole.
1 hole, 1 calculation
CNDR calculates the hole difficulty from the length of the hole. When the hole is mapped, CNDR also uses the shape of the hole. Because of this, a dogleg gets a correct difficulty, not the difficulty of a straight line to the flag.
CNDR records the difficulty on the hole when you play it. If CNDR changes its course data later, your old holes keep their points.
For example, a par 4 of 400 yards has a difficulty of 3.99 strokes. These are the points for each score on this hole:
| Result | Score | Points |
|---|---|---|
| Birdie | 3 | +5.0 |
| Par | 4 | +4.0 |
| Bogey | 5 | +3.0 |
| Double bogey | 6 | +2.0 |
| Triple bogey | 7 | +1.0 |
A par on this hole is almost equal to the tour baseline, so it gives approximately 4 points. Each stroke more or less changes the points by exactly 1.
Your last 250 holes
CNDR uses your last 250 holes. That is approximately 14 rounds of 18 holes. When you play a new hole, the oldest hole leaves the window. Because of this, a good round stays in your rating until 250 newer holes replace it.
The rating is a sum, not an average. With an average, 1 good round of 9 holes can put a new golfer at the top of the scale. With a sum, each hole adds a maximum of 4 points for the hole itself. A golfer at the tour baseline gets 1000 points only after 250 holes.
Before you play 18 holes, CNDR shows your rating as provisional. After 18 holes, the rating has enough data to start. It becomes more accurate as you fill the window.
The 6 ranks
The rating puts each golfer into 1 of 6 ranks. Each rank halves the gap to the tour baseline: Silver is 2 strokes for each hole behind it, Gold is 1, Diamond is 0.5, Zenith is 0.25 and Celestial is about 0.12. The table shows each rank as strokes per round behind the tour baseline, after a full window of 250 holes.
| Rank | Rating | Strokes for each 18 holes behind the tour baseline |
|---|---|---|
| Bronze | 1–499 | More than 36 |
| Silver | 500–749 | 18 to 36 |
| Gold | 750–874 | 9 to 18 |
| Diamond | 875–937 | 4.5 to 9 |
| Zenith | 938–969 | 2.2 to 4.5 |
| Celestial | 970 and higher | Less than 2.2 |
Where your handicap lands
CNDR has a baseline table for each handicap level. We used these tables on an example course of 6,930 yards. On this course, the expected score of the tour baseline is 70.7. The table shows the typical score and the estimated rating for each handicap.
| Handicap | Typical score | Strokes behind the tour baseline | Estimated rating | Rank |
|---|---|---|---|---|
| Scratch | 76 | 5.0 | 931 | Diamond |
| 5 | 83 | 11.9 | 835 | Gold |
| 10 | 87 | 16.6 | 770 | Gold |
| 15 | 93 | 22.3 | 690 | Silver |
| 20 | 98 | 27.4 | 619 | Silver |
| 25 | 108 | 36.9 | 487 | Bronze |
Estimates for typical golfers at each handicap after a full window of 250 holes. They are not a conversion for 1 golfer. A rating is never lower than 1 after you play a rated hole.
The scale is difficult on purpose. A scratch golfer is in Diamond, not at the top. Celestial is for golfers who are less than 2.2 strokes for each round behind the tour baseline. Because of this, each rank above Gold shows a real level of golf.
Driving and approach + putting
When CNDR has your shot positions, it also gives 2 category ratings. The driving rating compares your tee shot on each par 4 and par 5 with the best tee shot that the hole permits. The approach + putting rating includes all strokes after the drive. On a par 3, all strokes go into approach + putting.
With manual scoring only, CNDR calculates your overall rating from the scorecard and the hole difficulty. The 2 category ratings need shot positions. Automatic tracking, with your phone in your pocket or on Apple Watch, records these positions for you.
How to increase your rating
Your rating increases when a new hole is better than the old hole that it replaces. Each stroke has a value of 1 point. A stroke that you save with a safe lay-up has the same value as a stroke that you save with a long putt.
The fastest way up is not more birdies. It is fewer double bogeys.
On the example hole, a triple bogey gives 2 points less than a bogey. A birdie gives 2 points more than a bogey. For most golfers, a triple bogey is easier to prevent than a birdie is to make. Our article on where to aim off the tee shows 1 way to prevent large numbers.
Questions from golfers
What does a CNDR rating of 1000 mean?
It means that your score over your last 250 holes was equal to the tour baseline. The tour baseline is the expected score of an average tour player from each position.
Why is my rating low after my first round?
Each hole adds a maximum of 4 points for the hole itself. After 18 holes at the tour baseline, a golfer has 72 points. Your rating increases as you fill the window of 250 holes.
Do rounds with manual scoring count?
Yes. CNDR uses your scorecard and the difficulty of each hole. The driving and approach + putting ratings need shot positions.
Does a difficult course give me a lower rating?
No. Each hole has its own difficulty. On a difficult hole, the expected score is higher. Because of this, a bogey on a difficult hole removes fewer points than a bogey on an easy hole.
Can my rating change when I do not play?
No. Your rating changes only when you add new holes. Each new hole replaces the oldest hole in the window of 250 holes.
Method. The points formula, the 250-hole window, the 18-hole provisional limit and the rank limits come from the CNDR app. A rating is 1 point for each stroke gained against the tour baseline, plus 4 points for each hole. The points for the holes have a maximum of 1000. The rating has a minimum of 1 after you play a rated hole.
The handicap estimates use the CNDR baseline tables for each handicap and for the tour baseline. The example course has 4 par 3 holes from 160 to 210 yards and 10 par 4 holes from 360 to 450 yards. It also has 4 par 5 holes from 500 to 560 yards. The estimates use the expected score from the tee and the hole length only.
Sources
- Mark Broadie, Every Shot Counts (Gotham Books, 2014): strokes gained and expected scores from each position on the course.
- CNDR app: rating calculation (scale version 2) and baseline tables for the tour baseline and for each handicap, version of October 15, 2026.