To provide a golf ball which has the low rotating speed of back spinning and the large hitting out angle.

The golf ball 1 which is shot upward at a right angle collides with a colliding plate 23 extending in a direction x which is rotated at 26° counterclockwise based on horizontal facing to the right. The speed of the golf ball 1 right before the collision is set to be 30 m/s±0.1 m/s. F (t) which is the time series data of a force (shearing force) in the direction x at the time of the collision is measured by a load cell 21. An impulse from a contact- starting point to a point wherein the shearing force turns from plus to zero is taken as A. An impulse from a point wherein the shearing force turns from zero to minus to a point wherein the shearing force turns from minus to zero is taken as B. The value of (A/B) for this golf ball 1 is from 3.02 to 3.12.