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About Golf Handicaps
Handicap index from an average score.
Handicap systems, scoring methods and house rules vary by course and club, and novelty scores are entertainment rather than measurement. Where a governing body publishes a formula, the figure follows it exactly.
Leisure arithmetic runs on established rules or on none at all: a US golf handicap comes from the World Handicap System's score differentials, dice and pickers follow probability, and novelty scores carry no predictive claim. Where a real system exists it is quoted, and where there is none the figure is a game.
A handicap index is built from the better score differentials of recent rounds, each adjusted for the course rating and slope of the tees played. It expresses potential rather than average scoring, which is why a player beats their handicap only occasionally.
Draws and rolls reset on every attempt, so a run of one result says nothing about the next one.
Where a governing body publishes a method, the figure follows its definitions exactly — a golf handicap is built from score differentials against course rating and slope. Novelty scores carry no predictive claim and exist for entertainment rather than measurement.
Golf Handicap Calculator sits with the rest of the library's everyday work, and it rests on the same leisure-scoring arithmetic the way a manufacturer's label or a timetable does. Its answer is only as good as the assumptions standing behind it.
The quantities it works from — average score, course rating and slope rating — are the ones a real leisure-scoring question actually turns on, and each carries a convention of its own, set out below.
Everyday arithmetic in the United States carries conventions that are easy to miss: dates run month before day, distances and weights follow customary units, and prices are quoted before tax. Those conventions make a surprising share of daily sums come out differently from the same question asked elsewhere.
The figures in this section follow American practice unless the subject itself is international.