You tracked your stats last week. Nine greens in regulation. Thirty putts. Shot 84. The week before — six greens, twenty-eight putts. Shot 81. More greens, worse score. The numbers don’t explain anything. That’s the problem. Traditional golf stats describe what happened — they don’t tell you what it cost you.

Strokes gained does. It’s the metric that’s transformed how the tour analyses performance, and it’s now accessible to any amateur willing to track their game.

The key idea

Strokes gained measures every shot against a baseline — the average score a golfer takes to finish the hole from that exact position. It doesn’t ask “did you hit the fairway?” It asks “how much did that shot actually help you?”

Why the old stats let you down

Fairways in regulation, greens in regulation, and putts per round have been the standard scorecard stats for decades. They’re fine as a starting point. But they all share the same flaw: they treat unequal outcomes as equal.

A fairway miss by one yard counts the same as a ball out of bounds. A 60-foot birdie putt that you two-putt for par is recorded identically to a 3-footer that you miss — both go down as two putts. And putts per round is especially misleading: if you’re a decent chipper who regularly goes up and down, your putts per round flatters you on putting while hiding the shots you’re losing with your wedge.

Picture this

You miss the fairway off the tee on a par 4, but you’ve hit it 280 yards and you’re left with 95 yards to the flag — mid-iron into the green territory. Your playing partner splits the fairway, but he’s hit it 210 yards and he’s got a long iron in from 170. His stats show a fairway hit. Yours show a miss. But you’ve got the better second shot. Traditional stats don’t see any of that.

How strokes gained is actually calculated

Every position on a golf course — every distance, every lie type — has an expected score attached to it. This is the average number of shots a golfer takes to finish the hole from there. These expected values come from enormous datasets of real rounds, and they cover everything from 300 yards out in the fairway to 3 feet on the putting green.

When you hit a shot, strokes gained compares where you started to where you ended up, then subtracts 1 for the shot you just played. The formula looks like this:

Strokes Gained formula with worked example The strokes gained formula shown visually, followed by a worked example on a par 4 comparing two tee shots. THE FORMULA Expected shots from start position − Expected shots from end position − 1 = Strokes gained / lost The −1 accounts for the shot you just played WORKED EXAMPLE — PAR 4, 381 YARDS Player A Fairway, 185 yds out 3.95 − 2.85 − 1 = +0.10 0.10 shots gained on baseline Player B Rough, 60 yds out 3.95 − 2.40 − 1 = +0.55 0.55 shots gained — distance wins here

Same hole. Same tee. Player B’s extra distance gains more than Player A’s accuracy — strokes gained captures this, fairways in regulation doesn’t.

The numbers themselves are small — a tenth of a shot here, half a shot there. That’s fine. Over a full round, with 14 or 15 tee shots and 18 approach shots and however many putts, those fractions stack up fast. A golfer losing 0.2 shots per approach shot is losing nearly 4 shots a round on approaches alone.

“The score doesn’t lie — but the stats you use to analyse it often do. Strokes gained is the first golf stat that actually matches up with what the number on the card is telling you.”

The four categories

Strokes gained breaks your game into four areas. The numbers in each category tell you where you’re bleeding shots and where you’re holding your own.

SG: Off the Tee
Every tee shot on a par 4 or par 5. Accounts for both distance and accuracy — a long drive in the rough can still be a positive number.
SG: Approach
Full shots into the green — typically from 50 yards and beyond. How close you’re getting, and whether you’re giving yourself realistic birdie and par chances.
SG: Short Game
Chips, pitches, and bunker shots from around the green. This is the category most amateurs underestimate, and where huge numbers of shots are quietly lost.
SG: Putting
All putts, weighted by starting distance. A 40-footer that you two-putt is a fine result. A 4-footer that you miss is a disaster. Putts per round can’t tell the difference.

What this actually tells you about your game

The reason strokes gained is genuinely useful — rather than just interesting — is that it points you to the right practice. Most golfers spend most of their range time on full shots. But research consistently shows that the majority of shots lost by mid-handicap golfers come from the short game and approach categories, not off the tee.

You don’t need to track every shot to a decimal place to start benefiting from this. Even a rough version — writing down where each shot ends up and how far you are from the hole — starts to give you a picture over time. After ten rounds, the pattern becomes pretty clear.

Take this to the course

For your next five rounds, write down the result of every approach shot: the distance you started from, and how far you left yourself from the hole. That one number — approach shot proximity — will tell you more about where you’re losing shots than your GIR stat ever has. Once you see the pattern, you’ll know exactly what to work on.