Patent ID: 8888613

Claim:
A golf ball comprising a surface having a plurality of dimples formed thereon, wherein some or all of the dimples formed on the ball surface are dimples having a cross-sectional shape which, letting a straight line passing through any one edge of the dimple and a foot of a perpendicular (pedal) dropped from an imaginary plane defined by a peripheral edge of the dimple to a deepest point of the dimple serve as a reference line, establishing the following regions (1) to (5) on the reference line from the dimple edge as 0% (origin) to the pedal as 100%: (1) 11% to 30%, (2) 31% to 50%, (3) 51% to 70%, (4) 71% to 90%, and (5) 81% to 100%, and letting the dimple have average depths d1 to d5 from the reference line in the respective regions (1) to (5), satisfies the following conditions: d 1 ÷d 5=25% to 100%, d 2 ÷d 5=0% to 55%, d 3 ÷d 5=60% to 100%, and d 1 ÷d 2=0% to 90%.