Abstract: Provided is a golf ball including a core, an intermediate layer, and a cover. A relationship between surface hardnesses of an intermediate layer-encased sphere and the ball satisfies a predetermined relational expression. With a ball initial velocity and a deflection under a predetermined load applied to the ball optimized, and letting a value of (initial velocity of core×weight of core) be Ciw, a value of [(initial velocity of intermediate layer-encased sphere-initial velocity of core)×(weight of intermediate layer-encased sphere-weight of core)] be Miw, and a value of [(initial velocity of ball-initial velocity of intermediate layer-encased sphere)×(weight of ball-weight of intermediate layer-encased sphere)] be CViw, the following condition is satisfied: 2500 ? Ciw + Miw + CViw ? 2650. Lift coefficients and drag coefficients at predetermined Reynolds numbers and spin rates are set to predetermined ranges.