Why putts per round can hide putting performance

How 27 and 33 putts can describe the same results by distance

Illustrative example: these are two invented 18-hole rounds, not customer data or performance targets. Every hole is completed. All first putts start at exactly 6 feet or 30 feet, approximately 1.83 or 9.14 meters. After each subsequent stroke, the ball remains on the green until it is holed. There are no penalties, concessions, pickups, or hole-outs from off the green.

In both rounds, the player holes 75% of first putts from 6 feet and takes two putts on the rest. Every hole starting at 30 feet takes two putts. Only the number of opportunities at each distance changes.

The arithmetic is straightforward. Round A uses 9 × 1 + 3 × 2 + 6 × 2 = 27 putts. Round B uses 3 × 1 + 1 × 2 + 14 × 2 = 33. Both average 1.25 putts on holes starting at 6 feet and 2.00 on holes starting at 30 feet.

For context, suppose all the 30-foot starts follow greens hit in regulation, while all the 6-foot starts follow a missed green and a chip. Round A then has six greens in regulation and Round B has fourteen. This is an assumption in the example, not a rule that missed greens leave short putts.

The six-putt difference comes entirely from the mix of starting distances in this constructed record. It does not show that Round B had worse putting, that Round A had a better total score, or that the player's underlying skill changed. Equal observed rates in small samples do not establish equal ability either.

Greens in regulation add context but do not settle the question

A green in regulation means reaching the putting green with at least two strokes remaining for par. Recording GIR helps you understand how your putting opportunities arose.

You can also calculate putts per GIR: putts taken on those holes divided by the number of greens hit in regulation. In the example, that is 12 ÷ 6 = 2.00 for Round A and 28 ÷ 14 = 2.00 for Round B. Putts on missed-green holes are excluded from the numerator, and those holes are excluded from the denominator.

That restriction still does not match starting distances in an ordinary round. Two golfers can both hit twelve greens while one faces mostly short birdie putts and the other mostly long ones. Keep the actual first-putt distances, rather than expecting the GIR count to explain them.

Fearing and colleagues modeled putting using starting distance, including make probability and distance remaining after a miss. Their published abstract concerns PGA TOUR players, not amateur performance targets. Fearing, Acimovic and Graves, 2011.

Build a putting record you can interpret

For each hole, record the first-putt distance and the number of putts actually taken. Keep the unit consistent and flag whether the distance was measured or estimated. Add GIR, the date and course, and any unusual conditions that may matter later.

If you want to review individual putts, record the starting distance of each one, including the next putt. After a missed first putt, the remaining distance helps distinguish very different two-putt sequences. A ball that finishes 1 foot away and one that finishes 6 feet away have left different next tasks, even if both next putts are holed.

Agree on the counting convention before comparing records. For this review, classify strokes by their starting location: record a putter stroke from the fringe separately from strokes that begin on the putting green. Check the convention used by your app instead of assuming every system counts the same way.

Keep an unknown distance marked as unknown. A chip-in can produce a genuine zero-putt hole; missing data cannot. Flag conceded putts and unfinished holes rather than entering them as observed makes. If a sequence includes a penalty or a return from off the green, retain the full sequence and identify it before interpreting a simple putting total.

Choose the denominator that answers your question

Use a small set of clearly labeled measures:

• First-putt conversion by starting distance: first putts holed divided by first-putt opportunities in that distance group. Round A's 6-foot result is 9 out of 12, or 75%, not 9 divided by its 27 total putts.
• Three-putt frequency by first-putt distance: completed holes with three or more putts divided by completed holes starting in the same distance group. Keep the opportunity count beside the percentage.
• Distance remaining after a missed first putt: compare misses from similar starting distances. State that holed first putts are excluded; a miss-only average answers a different question from an average that includes makes as zero.

If you combine distances into bands, use the same boundaries in both periods. A broad band can still contain very different opportunities. Also keep first-putt conversion separate from a make rate that includes every putt, because the latter includes follow-up attempts.

Strokes Gained adds a benchmark-based comparison using shot locations. State the reference group and whether you are reading a total or a per-round value. The model's inputs limit the context it captures; it does not explain the cause of a miss. Broadie, 2012. For the calculation and its limits, see our guide to Strokes Gained.

What to check after your next round

Start with the total, then inspect the first-putt distance mix. Compare results within similar distances and keep attempts visible. Review any large misses individually before deciding whether the question concerns reading the green, the chosen line and pace, contact, or recording accuracy. The count alone cannot choose among those explanations.

MetriQ's putting analysis includes Strokes Gained and make rates by distance. Use that detail to ask a narrower question about the round, while checking what each view includes.

At the next review, compare the same measures over a clearly stated period and note changes in conditions. There is no universal number of rounds that makes every putting comparison reliable. A 27-putt round becomes more informative when you can explain which putts produced it.