Synergistic pairing of golf clubs with golf balls both with improved aerodynamic properties to help improve the performance of both. In an example, a golf club has a golf club head; a grip; and a shaft having a tip end and a butt end. The golf club head is coupled to the shaft at the tip end, and the grip is coupled to the shaft at the butt end. The golf ball has at least a core and a cover having a plurality of dimples arranged in a dimple pattern.

Synergistic pairing of golf clubs with golf balls both with improved aerodynamic properties to help improve the performance of both. In an example, a golf club has a golf club head; a grip; and a shaft having a tip end and a butt end. The golf club head is coupled to the shaft at the tip end, and the grip is coupled to the shaft at the butt end. The golf ball has at least a core and a cover having a plurality of dimples arranged in a dimple pattern.

An ultra-low compression three-piece golf ball is disclosed herein. The core preferably has a PGA compression less than 30. The mantle layer and cover have approximately the same thickness. The cover comprises a thermoplastic polyurethane material and has a specific gravity greater than the core and mantle layer. The golf ball has a PGA compression less than 75 and a COR of at least 0.780.

The present invention provides a golf ball in which dimples are formed on a ball surface, wherein when edge angles at points where depths are 10%, 20%, and 30% in a cross-section of one dimple are denoted as ED1, ED2, and ED3, respectively, dimples with a cross-sectional shape satisfying the following condition (1):

[00001]$\begin{array}{cc}\mathrm{ED}1<\mathrm{ED}2>\mathrm{ED}3& \left(1\right)\end{array}$

account for at least 10% of a total number of the dimples, and further a ratio A1 of a lift coefficient at a Reynolds number of 218,000 and a spin rate of 2,800 rpm to a drag coefficient, a ratio A2 of a lift coefficient at a Reynolds number of 184,000 and a spin rate of 2,900 rpm to a drag coefficient, and a ratio A3 of a lift coefficient at a Reynolds number of 158,000 and a spin rate of 3,100 rpm to a drag coefficient are optimized.

A golf ball includes a core and a cover, in which a large number of dimples are formed on an outside surface of the cover, the cover is formed using an ionomer resin as a chief material, an initial velocity of the ball is set within a predetermined range, a deflection when a predetermined load is applied to the ball is set within a predetermined range, a relationship of a ratio to a lift coefficient/drag coefficient at a Reynolds number of 218,000 and a spin rate of 2,800 rpm, a lift coefficient/drag coefficient at a Reynolds number of 184,000 and a spin rate of 2,900 rpm, and a lift coefficient/drag coefficient at a Reynolds number of 158,000 and a spin rate of 3,100 rpm is specified, and a volume occupancy ratio of the dimples is set within a predetermined range.

A multi-piece solid golf ball includes a core, a surrounding layer, an intermediate layer, and a cover, in which a large number of dimples are formed on an outside surface of the cover, a relationship of surface hardnesses of each sphere is specified, an initial velocity of the ball is set to 75.0 to 77.724 m/s, and a relationship of a ratio to a lift coefficient/drag coefficient at a Reynolds number of 218,000 and a spin rate of 2,800 rpm, a lift coefficient/drag coefficient at a Reynolds number of 184,000 and a spin rate of 2,900 rpm, and a lift coefficient/drag coefficient at a Reynolds number of 158,000 and a spin rate of 3,100 rpm is specified.

Golf balls disclosed herein have a combination of aerodynamic properties and construction parameters providing a desired set of performance characteristics.

Golf balls disclosed herein have a combination of aerodynamic properties and construction parameters providing a desired set of performance characteristics.

Golf balls disclosed herein have a combination of aerodynamic properties and construction parameters providing a desired set of performance characteristics.

A golf ball is disclosed herein that has at least one modified aerodynamic characteristic or performance trait. More specifically, the golf ball disclosed herein can include a dimple pattern having a specific drag coefficient and/or specific integrated drag area.