| 摘要 |
The invention provides a golf ball having a core and a cover of at least one layer. The cover includes an outermost layer and at least one intermediate layer interposed between the outermost layer and the core. The core has a cross-sectional hardness which, letting R (mm) be the radius of the core, A be the JIS-C hardness at the center of the core, B be the JIS-C hardness at a position R/3 mm from the core center, C be the JIS-C hardness at a position R/1.8 mm from the core center, D be the JIS-C hardness at a position R/1.5 mm from the core center, and E be the JIS-C hardness at the surface of the core, satisfies formulas (1) B-A<D-B, (2) C-A@8, and (3) E-B>=15. The intermediate layer and the outermost layer have a hardness relationship therebetween which satisfies the formula "material hardness of intermediate layer<material hardness of outermost layer." |
