Greens in Regulation Percentage
Greens in regulation percentage (GIR%) is the share of holes on which a golfer reaches the putting surface in at least two strokes fewer than par. It is calculated by dividing the number of greens hit in regulation by the holes played, then multiplying by 100.
What is greens in regulation percentage?
A green in regulation, usually shortened to GIR, happens when a player’s ball comes to rest on the putting surface within a set number of strokes tied to the hole’s par. That number is always par minus two, because the scoring system assumes a golfer takes two putts once the ball is on the green. Reach a par 4 in two shots and two putts remain for par.
The percentage version takes that hole-by-hole result and turns it into a single rate across a round or a full season. A golfer who reaches nine of eighteen greens in the required strokes posts a GIR of 50 percent. Stat trackers and tour statisticians lean on the percentage rather than a raw green count because rounds vary in length, and a rate makes it easy to line up a nine-hole score against an eighteen-hole one, or one player against another.
GIR% earns its attention because it tracks scoring more closely than almost any other traditional stat. The more greens a player reaches in regulation, the more birdie and par putts they give themselves, and the less they lean on scrambling to rescue a hole.
How greens in regulation percentage is calculated
The strokes needed to record a green in regulation come straight from the hole’s par. Subtract two, and that is the target.
| Hole | Strokes to reach the green in regulation |
|---|---|
| Par 3 | 1 stroke |
| Par 4 | 2 strokes |
| Par 5 | 3 strokes |
The formula for the round is simple: divide greens hit by holes played, then multiply by 100. A golfer who hits 4 greens across 18 holes finishes at roughly 22 percent (4 divided by 18, times 100). Hit 12 of those greens and the figure jumps to about 67 percent. The same math works for a nine-hole round, so 3 greens out of 9 also lands at 33 percent.
One point trips up plenty of newcomers: the count has nothing to do with the score written on the card. A player can two-putt for par, three-putt for bogey, or drain the putt for birdie, and the green still counts the same. GIR measures whether the ball arrived on the surface on time, not what happened after.
What counts as a green in regulation
The ball has to finish on the putting surface itself. Under the USGA rules, a ball is on the putting green when any part of it touches that surface, so a ball resting against the collar still qualifies as long as a sliver touches the green. A ball on the fringe or in the greenside rough does not count, even when a golfer chooses to putt from there.
Reaching the green in fewer strokes than regulation counts too. Drive a par 4 and hole out the green in one, and that is a green in regulation, sometimes described as hitting it under regulation. The stat sets a ceiling on strokes to the green, not a floor.
What is a good greens in regulation percentage?
The honest answer depends entirely on skill level, and the gap between a beginner and a scratch player is wide. On-course tracking company Shot Scope has recorded average GIR percentages across handicap bands, and the spread tells the story.
| Handicap | Average GIR % |
|---|---|
| Scratch (0) | 59% |
| 5 | 41% |
| 10 | 32% |
| 15 | 21% |
| 20 | 14% |
| 25 | 9% |
Source: Shot Scope on-course tracking data.
A scratch golfer reaches the green in regulation on roughly six of every ten holes, while a 25-handicapper manages fewer than one in ten. For a mid-handicapper, anything in the 20 to 30 percent range sits right on target, and climbing to the next band usually shows up directly on the scorecard.
Professionals live in a different tier. The PGA Tour average sits around 65 percent, and the season leaders push past 72 percent. In 2021, Cameron Percy topped the tour at 72.58 percent, better than 13 greens a round, according to PGA Tour stats. Even the best players in the world miss close to three greens per round, which puts an amateur’s misses in friendlier perspective.
Greens in regulation vs. fairways in regulation
Golfers often mention GIR and fairways in regulation (FIR) in the same breath, and the two do connect, but they measure different shots. FIR records whether a tee shot finds the fairway on par 4s and par 5s. GIR records whether an approach finds the green in the regulation number of strokes.
| Stat | What it measures | When it applies |
|---|---|---|
| Greens in regulation (GIR) | Reaching the putting surface in par minus two strokes | Every hole |
| Fairways in regulation (FIR) | A tee shot finding the fairway | Par 4s and par 5s only |
A well-placed drive makes the next green easier to hit, so the two stats feed each other. For predicting scores, though, GIR carries more weight. It sits among the stats most strongly tied to handicap, which is why players chasing lower numbers tend to watch it first.
Related Golf Terms
- Going for the green — The rate at which a player attempts to reach par-5 greens in two.
- Expected strokes — The baseline average used to calculate strokes gained.
- Putting average — The average number of putts taken per green hit in regulation.
- Bounce back — The rate of scoring under par on the hole after a bogey or worse.
- Make percentage — The rate of holing putts from a given distance.
Frequently Asked Questions
What is the average greens in regulation percentage on the PGA Tour?
The tour average hovers around 65 percent, or close to 12 greens per round. Season leaders climb past 72 percent, as Cameron Percy did at 72.58 percent in 2021.
Does the fringe count toward greens in regulation?
No. The ball has to finish on the putting surface. A ball on the fringe, collar, or apron does not count, even though a golfer can putt from there.
Can you three-putt and still record a green in regulation?
Yes. GIR only measures whether the ball reached the green in the regulation number of strokes. Whatever the putter does next has no bearing on the stat.
Does driving a par 4 green in one shot count as a green in regulation?
Yes. Reaching the green in fewer strokes than regulation still counts. That result is often called hitting the green under regulation.
What is a good greens in regulation percentage for an average golfer?
Mid-handicappers who land in the 20 to 30 percent range are doing well. For context, Shot Scope data puts a 15-handicap near 21 percent and a scratch golfer near 59 percent.
Sources
- United States Golf Association. “Rule 13: The Putting Green.” Rules of Golf. Accessed August 2026.
https://www.usga.org/content/usga/home-page/custom-search-pages/rules/2019-golf-rules-and-interpretations/pe-rule-13.html - PGA Tour. “Greens in Regulation Percentage.” PGA Tour Stats. Accessed August 2026.
https://www.pgatour.com/stats/detail/103 - GolfLink. “Greens in Regulation Simply Explained.” GIR percentage by handicap, data from Shot Scope. Accessed August 2026.
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