Strokes Gained Putting: What Amateurs Get Wrong

The Putts-Per-Round Problem

Ask any golfer how they putt and they'll give you a number: “I averaged 32 putts today.” The problem is that putts per round is one of the most misleading stats in golf. It tells you almost nothing about putting quality without knowing how many greens you hit.

Consider two 15-handicap golfers:

Golfer A almost certainly putted better despite having more putts. Strokes gained accounts for this by adjusting for GIR context.

How GIR-Adjusted Putting Works

Our calculator uses a GIR-adjusted putting model. Instead of comparing raw putts per round, we calculate expected putts based on your GIR rate:

This means a golfer who hits many greens is expected to take more putts (because GIR putts are typically longer and result in more two-putts). The putting SG value reflects whether you putt better or worse than expected given your GIR rate.

When GIR is not provided, the calculator falls back to a simpler model comparing your putts per hole against the peer average. This is less accurate but still directionally useful. The confidence level reflects which model was used.

Average Putts by Handicap Bracket

Here's what the data shows for putts per round across handicap levels:

Notice the narrow spread in putts per round compared to the wide spread in GIR. A 0-5 handicap golfer only putts about 3-4 fewer times per round than a 30+ golfer — despite hitting dramatically more greens. This is because more greens = more putts from longer distances = more total putts.

The Low-GIR Putting Caveat

When your GIR is significantly below your bracket's average (more than 10 percentage points lower), the calculator displays a “Low GIR — less reliable” caveat on your putting result.

Why? With very few greens hit, most of your putts come from scramble situations. The expected putts calculation becomes less reliable because the ratio of GIR putts to non-GIR putts is heavily skewed. In extreme cases (0-2 GIR), your putting SG is essentially measuring your chip-and-putt performance rather than true green-reading ability.

This doesn't mean the number is wrong — it means the confidence in the putting breakdown specifically is lower. Your total strokes gained and other categories are unaffected.

What the Research Shows

Mark Broadie's original strokes gained research found that for professional golfers, the long game (tee shots and approach) accounts for roughly two-thirds of the scoring differences between players, while putting accounts for about one-third.

For amateurs, the data is even more skewed toward the long game. The scoring gaps between handicap brackets are overwhelmingly driven by GIR differences (approach play) and penalty avoidance (tee shots), not putting.

This doesn't mean putting practice is worthless — but it does mean that spending all your practice time on the putting green while ignoring your iron game is likely leaving strokes on the table. The data suggests a balanced practice allocation weighted toward your weakest category, which for most mid-handicap golfers is approach play.

For a complete breakdown of how all four categories separate golfers by handicap, see Average Strokes Gained by Handicap.