| abstract |
(57) [Problem] To provide a three-piece solid golf ball improved in flight performance without impairing excellent hit feeling according to the present invention. SOLUTION: The present invention comprises a core (1), an intermediate layer (2), and a cover (3). The core (1) is composed of 100 parts by weight of polybutadiene, A part by weight of an organic sulfur compound, and 100 parts by weight of an organic polymer. When the rubber composition contains B parts by weight of the oxide and C parts by weight of the co-crosslinking agent, the compounding variable F represented by the formula: F = {(A × B) 2 × C / (A + B)} is 1 The surface hardness of the core (1) according to JIS-C hardness is K, the hardness of the intermediate layer (2) is L, the hardness of the cover (3) is M, and the thickness of the intermediate layer is W (mm), when the thickness of the cover is represented by X (mm), the formula: S = [｛(KL) × W｝ / {(M−K) × X}] Is between 0.4 and 1.0 and the hardness difference (KL) is between 10 and 30. |