Greens in Regulation (GIR)
Also known as: GIR
Greens in Regulation (GIR) counts how often a golfer reaches the putting surface in "regulation" — two strokes fewer than par (par minus 2) — and is the single most commonly used measure of overall ball-striking quality.
Greens in Regulation, universally abbreviated GIR, tracks how often a golfer's ball reaches the putting surface within the number of strokes that leaves two putts for par — meaning by the second stroke on a par 4, or the third on a par 5, and so on. GIR percentage is the single most commonly cited ball-striking statistic in golf because it summarizes the combined result of driving accuracy and distance, approach shot quality, and club selection into one clean number tied directly to scoring opportunity.
GIR correlates strongly with scoring average across all skill levels, which is why it is often the first statistic serious golfers track alongside fairways hit. A golfer's GIR percentage sets the baseline expectation for how many holes offer a realistic two-putt par (or better) opportunity versus how many holes require the short game to save par through scrambling — the relationship between GIR percentage and scrambling percentage together largely explains a golfer's overall scoring average.
GIR is sometimes misinterpreted as purely an approach-shot statistic, but it is influenced heavily by tee shot quality as well: a golfer who consistently finds the fairway with a workable distance for their approach has a structurally easier path to GIR than one who frequently faces long approach shots from the rough. This is part of why serious statistical analysis tracks GIR alongside fairways hit and approach shot proximity rather than treating it as a single, self-contained number.
Example
A player hits the green in two shots on a par 4 (off the tee, then a mid-iron approach), leaving two putts for par — a greens-in-regulation hole regardless of whether the two putts are actually made.
Why it matters
GIR percentage correlates strongly with overall scoring average, making it one of the most useful single statistics for tracking whether ball-striking improvements are translating into real scoring opportunities.
Frequently asked questions
What counts as a green in regulation?
Reaching the putting surface in two strokes fewer than par for that hole — the second shot on a par 4, the third on a par 5, and so on — regardless of how many putts are then taken.
Is GIR the most important golf statistic?
It is one of the most commonly used and strongly correlated with scoring, but it works best interpreted alongside fairways hit and scrambling percentage rather than in isolation.
Related terms
- Fairways HitFairways hit tracks driving accuracy — the percentage of tee shots on par 4s and par 5s that finish in the fairway — a key input into greens in regulation, since a fairway lie makes hitting the green with the approach shot meaningfully easier.
- Approach ShotAn approach shot is any shot hit toward the green with the intent of reaching or setting up the putting surface, most commonly the second shot on a par 4 or the second or third shot on a par 5.
- ScramblingScrambling percentage measures how often a golfer saves par or better after missing the green in regulation, in any number of strokes — the broadest short-game statistic, capturing recovery ability rather than one specific shot type.
- Strokes GainedStrokes gained measures how many strokes a player gains or loses relative to a benchmark (tour average or peer group) on each category of shots — off the tee, approach, around the green, and putting.
- Club SelectionClub selection is choosing the right club for each shot based on real carry distance, lie, wind, elevation, and hazard placement — one of the highest-impact decisions in scoring.
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