Golf ball 2 has numerous double radius dimples and numerous triple radius dimples on the surface thereof. The double radius dimple has a first side wall face having a curvature radius R1, and a bottom face having a curvature radius R2 that is 5 times or more and 55 times or less greater than the curvature radius R1 and being positioned on the bottom side than the first side wall face. The triple radius dimple has a first side wall face having a curvature radius that is greater than the phantom curvature radius Rx, a second side wall face being positioned on the bottom side than the first side wall face and having a curvature radius that is smaller than the phantom curvature radius Rx, and a bottom face being positioned on the bottom side than the second side wall face and having a curvature radius that is greater than the phantom curvature radius Rx. Proportion of the number of the double radius dimples in total number of the dimples is 20% or greater and 42% or less, and proportion of the number of the triple radius dimples is equal to or greater than 50%.