Golf ball dimples

摘要

A golf ball has a large number of dimples (A dimples and B dimples) on a surface thereof. X and Y satisfy a relationship of an equation (I):

X & 3832 Ò Y + 1495```(I),

X representing a total of dimple contour lengths x and Y representing a surface area occupation ratio of the dimples. The surface area occupation ratio Y of the golf ball is 0.70 to 0.90. The number of dimples having the dimple contour length x of 10.5 mm or more is 91% of a total number of the dimples or more. The total contour length is preferably between 2800-5000mm and the total number of dimples between 200-500. Optionally the average diameter of each dimple is from 2 to 8 mm.