Distance to the green is the yardage from your ball to the putting surface. On scorecards, yardage markers and most GPS devices it means the center of the green, not the flag. Front and back numbers, where you have them, tell you how much green sits short of that point and beyond it. That’s the whole definition, and the rest of this page is about using it, starting with the half most golfers skip: a distance is only useful next to a club number you trust, and finding your real club distances comes first.
On this page
The three numbers and what each is for
A green is not a point. It’s a surface with a front edge, a back edge and a middle, and a distance to each one is a different piece of information.
| Number | What it measures | Use it for | The trap |
|---|---|---|---|
| Front | Yards to the nearest edge of the putting surface | The carry you must fly: bunkers, water, a false front | Playing to it leaves you short on most holes |
| Center | Yards to the middle of the green | Club selection; the default target | None, which is why it’s the default |
| Back | Yards to the far edge | The ceiling; what too much club means today | Chasing a back pin brings long trouble into play |
A worked example: the center reads 150, the front 136, the back 164. The green is 28 yards deep. If your 7-iron carries 147 and your 6-iron 158, the 7-iron lands 3 yards short of center and 11 yards on, and the 6-iron lands 8 past center and 6 short of the back edge. Both are on the green. The front number tells you the 7-iron carries the bunker with 11 yards to spare; the back number tells you the 6-iron isn’t over. That’s what the three numbers are for: not three targets, but one target and two margins.
Why markers, apps and yardage books usually mean the center
The center is the convention because it’s how the course was measured. Course rating procedure, as the USGA describes it and as allied associations like the Metropolitan Amateur Golf Association explain in their FAQ, measures each hole from the permanent marker on the tee to the center of the green, horizontally, along the line of play. The hole length on the tee sign is to the center. The 150 plate was laid out from the center. The USGA Green Section was describing the 150-yard marker to the center of the green as the standard in 1976, and it hasn’t changed. The markers guide covers the exceptions, including the minority of courses that mark to the front.
GPS apps and watches usually show all three numbers, or default to the center with the other two smaller. Yardage books draw the green with its depth and give the edges, so the center is the number you make by adding half the depth to the front. Laser rangefinders are the exception to all of this: a laser measures to whatever you point it at, which is usually the flag, and the flag is the one thing on the green that moves.
How deep is a green? The front-to-back spread
There’s no rule on green size, and greens on the same course vary a lot, so the honest answer is a range with some arithmetic behind it. The USGA has cited its own study putting the average putting green on U.S. courses at roughly 5,500 to 5,700 square feet: its 2022 piece on The Country Club at Brookline, where the greens average 4,388 square feet even after a restoration enlarged them, uses the higher figure, and a Green Section Record article on backyard greens uses the lower one. Nobody publishes an average depth, so here is the logic. A circular green of 5,600 square feet is about 28 yards across. Real greens are usually longer than they are wide, so a typical green 25 yards wide runs about 32 yards deep. Put together: on an average American green, the front number is roughly 14 to 16 yards less than the center, and the back number roughly 14 to 16 yards more.
| Green area (sq ft) | Across, if round (yd) | Center to edge (yd) | What it looks like |
|---|---|---|---|
| 3,500 | 22 | 11 | A small, old green |
| 4,500 | 25 | 13 | Brookline’s average after restoration (4,388) |
| 5,600 | 28 | 14 | The U.S. average, per the USGA study |
| 7,000 | 32 | 16 | A big modern or resort green |
| 9,000 | 36 | 18 | Very large |
The practical point: on a typical green, a front pin and a back pin can be 20 yards or more apart, which is about two clubs. That’s why “what’s the distance to the green” has to be answered with “to which part,” and why the center is the safest single answer when you only get one.
Pin sheets, pin positions and why the flag number changes daily
The hole is moved most days, partly to spread foot traffic around the green and partly to change the test, so the distance to the flag on a given hole is different on Tuesday than on Saturday. Courses that publish a pin sheet give the position as a depth from the front edge and an offset from one side, often on a small diagram; some signal front, middle or back thirds with the flag color or a marker on the flagstick. From a center number and a pin sheet you can build a flag number: center 150, green 30 deep, pin 8 yards on from the front, and the flag is at 143. Without a sheet, your eyes do a rougher version of the same sum.
Either way, the flag number is a derived number, built from the center and today’s setup. That’s the reason a fixed marker, a GPS map or a printed book can’t give it to you, and a laser can: the laser measures what’s there this morning. It’s also the reason the center is worth more than it looks. It’s the only one of the numbers that’s the same every day.
Which number to use for club selection
Start with the center and adjust only when you have a reason and the depth to back it. Shot Scope’s data, across all handicaps, gives the reason: 38.64% of approach shots from 130 to 150 yards hit the green, and across all approaches from inside 150 yards the results run heavily short, 17.4% short left and 19.0% short right against 8.0% long left and 6.2% long right. Amateurs come up short far more than they go long, and a golfer who plays to the front number, or to a front pin, is asking for the short miss. Playing to the center with an honest club number, and clubbing up when you’re between, moves the whole pattern toward the middle of the green.
Decision rules that survive contact with a Saturday round:
- Pin in the front third, trouble short. Play the center number. A ball 10 yards past a front pin is a 30-foot putt; a ball 5 yards short of it is in the bunker.
- Pin in the back third, nothing long. Center number, or center plus a few yards if the club is between. Never the full back number; the ball that flies the back number is over.
- Pin in the middle. Center number. The easiest club decision in golf.
- Forced carry over water or sand to the front edge. Now the front number matters: your carry number has to beat it with margin. If it doesn’t, the shot is a lay-up, and when to lay up is a distance decision, not a courage decision.
- Wind, cold or a hill. Adjust the center number for conditions before you think about the pin at all.
The general case is the strategy in aim for the center of the green: the middle is the target that turns a 30-foot miss into a putt instead of a chip, on most holes, for most golfers. The pin is information. The center is the plan.
How Yardage defines its number
Yardage shows one number: the live GPS distance, in yards, from where you stand to the mapped center of the green on the hole you picked, updated as you walk and shown on the Lock Screen during a round. There’s no front number, no back number, no flag, and it doesn’t suggest a club. That’s the center-of-the-green convention this whole page describes, delivered without a marker or a walk, and it’s a deliberate choice rather than a missing feature: the center is the number that picks the club, and the one that’s true every day. The number is phone GPS, and the app says so. GPS.gov’s published figure for GPS-enabled smartphones is a radius of about 4.9 meters (16 feet) under open sky, degraded near trees and buildings, and Yardage shows a reduced-accuracy status instead of a confident number when the signal is poor. How the satellites become that number is in how golf GPS works.
Questions
What does distance to the green mean in golf?
The yards from your ball to the putting surface. On scorecards, markers and most GPS devices it means the center of the green. Front and back distances, where they're given, measure to the nearest and farthest edges. The flag's distance is a different number and changes with the day's hole location.
Is a hole's yardage measured to the front or the center of the green?
The center. Course rating procedure measures each hole from the permanent tee marker to the center of the green along the line of play, and the tee sign and most fairway markers follow the same convention. A few courses mark sprinkler heads or plates to the front; the card or the pro shop will say.
How deep is a typical golf green?
Roughly 28 to 32 yards front to back on an average American green, working from the USGA-cited average of about 5,500 to 5,700 square feet. Small old greens can be under 22 yards deep and big modern ones well over 35. Depth varies hole to hole, so a pin sheet or a GPS that shows the edges is worth more than any average.
Should I play to the pin or the center of the green?
The center, on most holes. Shot Scope's data shows amateurs miss short of greens far more often than long, and a front pin pulls you into that miss. Use the pin position to nudge the club by a few yards when the green is deep and there's no trouble in the way; otherwise the center number picks the club.
What do front, middle and back mean on a golf GPS?
Front is the distance to the nearest edge of the green, middle is the distance to its center, and back is the distance to the far edge, all from where you're standing. Middle is the club-selection number. Front tells you what you must carry; back tells you what's too much.
Why doesn't my GPS match the yardage marker?
Usually because you aren't standing on the marker, and sometimes because the two are measured to different points, center versus front. Phone GPS also carries a few yards of uncertainty, about 16 feet under open sky according to GPS.gov. A gap of a few yards is normal; a gap of 15 usually means a different edge.
Does Yardage show the front and back of the green?
No. Yardage shows one number, the distance to the mapped center of the green, and nothing else: no front, no back, no flag. If you want edge numbers, a printed yardage book or a laser to the edges does that. The center is the number that picks the club, and it's the same every day.
Sources
- USGA: Handicap Manual, Section 12 Measurements
- Metropolitan Amateur Golf Association: Top 10 Questions about Course Rating
- USGA Green Section Record (January 1976): The 150-Yard Marker (Turfgrass Information Center archive)
- USGA: Brookline's Small Greens Are a Challenge
- USGA Green Section Record: How To Make Your Backyard Putting Green Dream a Reality
- Shot Scope: How many greens should you hit from 150 yards?
- GPS.gov: GPS Accuracy