Golf Handicap Distribution Curve. Score Course Rating Handicap Handicap Differential and not negative Net Differentials. It shouldnt happen though.

In simple terms a person playing on a par 72 golf course and shooting 90 is said to have a handicap of 18. They are taken as the last 20 rounds played or the final 10 rounds played. Scores normally fit into the classic bell-shaped curve.
This calculation gives a numerical measure of a golfers ability.
I have 200 rounds over 10 years. In the United States the median male handicap is right around a 130 and the median female handicap is right around 255. Of course the handicap is not a perfect number to hold on to as a lot of players never manage to play on their handicap level. More than half of your scores should be within three strokes of three over your handicap.