Golf Scores Explained: Reading Women's Results

A leaderboard looks simple and hides several decisions: which score is being shown, whether handicaps were applied, how ties were resolved and what happens to an unfinished round. This page explains how to read one.

Gross, net and to-par

Gross score is the number of strokes taken. It is what a scratch competition is decided on.
Net score is gross minus handicap strokes. Under the World Handicap System a Handicap Index is the average of a player's best 8 Score Differentials from their most recent 20 rounds, with a maximum index of 54.0, and the Committee converts that index into course handicap strokes for the tees in play.
To par is the gross score expressed against the par of the course, which is why the same 71 strokes can read as -1 on one course and +1 on another.

A board that shows "-5" without saying whether it is gross or net is not telling you who played better golf. Championship boards are gross; club boards are often net.

Who is responsible for the number

Under Rule 3 of the Rules of Golf, the marker keeps the score and certifies the card, and the player checks the hole scores and returns it. The Committee adds the scores and applies handicap strokes where the competition is net, and a player's arithmetic error on the card is not penalised because totalling is the Committee's job. What is penalised is returning a wrong hole score, or failing to have the card certified.

This is why a leaderboard can change an hour after play finishes. A hole score can be corrected before the competition closes; a total cannot be "appealed".

Resolving ties, and the arithmetic behind countback

Ties are decided by the terms of competition, which the Committee publishes before entries close; the R&A sets out what those terms should cover in its Committee Procedures. Common methods:

Play-off, sudden death or over a stated number of holes. Used where a single winner is required on the day.
Countback, comparing the last 18, 9, 6, 3 and final hole in turn. This is arithmetic, not judgement, and it is published in advance.
Shared title, used for team and some junior events.

In net competitions countback uses net scores for the segments, which is why two players who tie on the full round can separate on the back nine even though both played it in the same gross number.

What a board does not show

Field strength. A winning total of -3 in a strong field can be a better performance than -9 in a weak one. The World Amateur Golf Ranking exists to weight exactly that, rating each Counting Event by field strength and dividing points by the number of events played.
Conditions. Morning and afternoon tee times on a windy coastal course are not the same examination.
Course setup. Tee positions and pin sheets change between rounds and are rarely published alongside the scores.
Withdrawals and disqualifications. A blank is not a bad round; read the codes beside it.

A short glossary

WD withdrawn, DQ disqualified, MC missed cut, NR no return.
Stableford: points per hole against a fixed target, so a disaster hole costs a defined amount rather than the whole card.
Four-ball: each player plays their own ball, the better score counts.
Foursomes: partners play alternate shots with one ball.

Sources

USGA, Handicap FAQ: index calculation and the 54.0 maximum.
The R&A, Rule 3, The Competition: marker and player duties, Committee responsibility for totals and handicaps.
The R&A, Committee Procedures, before the competition: terms of competition, including how ties are decided.
The R&A and USGA, WAGR criteria: field strength weighting.