Golf balls having reduced distance

A golf ball comprising:

• a core layer comprising a rubber formulation of polybutadiene rubber, butyl rubber, or a blend thereof, and
• a cover layer comprising a plurality of dimples disposed thereon, wherein the dimples are arranged in an icosahedral pattern comprising twenty substantially identical dimple sections, wherein each dimple section is defined by a spherical triangle,
• wherein the dimples in each of the twenty substantially identical dimple sections have a corresponding dimple diameter and a corresponding edge angle and the dimples in each of the twenty substantially identical dimple sections comprise:
• (i) at least four different dimple diameters including a minimum dimple diameter equivalent to the smallest dimple diameter within the dimple section, a maximum dimple diameter, and at least two additional dimple diameters, wherein each of the at least four different dimple diameters range from about 0.030 inches to about 0.200 inches and the minimum dimple diameter is less than 0.100 inches, and
• (ii) substantially identical edge angles,
• wherein each substantially identical dimple section comprises at least one shared dimple located on at least one vertex of the dimple section and the at least one shared dimple has the minimum dimple diameter and a centroid, wherein the centroid of the at least one shared dimple is located on the at least one vertex of the dimple section,
• wherein the pattern has a surface coverage of about 65 percent or less, and
• wherein the surface coverage is related to an amount of the rubber formulation according to the following equation:
• BR
• 1
• -
• SC
• ≤
• 2.
• where SC is the surface coverage in the decimal form of percentage and 0<SC<1, and BR is the weight percent of polybutadiene rubber, in decimal form, based on the total weight of rubber in the rubber formulation and 0≤BR≤1.