A golf ball comprising a core, an outer cover layer, and, optionally, an intermediate layer disposed between the core and the outer cover layer is presently disclosed. At least one layer of the golf ball is formed from a composition comprising a base polymer, a crosslink initiator, and at least one additive having a structure of: ##STR00001## where at least one of R.sub.1 to R.sub.5 is selected from perhaloalkyls, (per)haloaryls, (per)haloaralkyls, (per)haloalkaryls, and (per)halocycloalkyls; the remainder of R.sub.1 to R.sub.5 are the same or different organic substituents or hydrogen; n is an integer of 1 or greater; and Z is selected from metal cations, organometallic cations, and non-metal cations, and, when n is 1, Z may also be selected from hydrogen and halogens; or a structure of: ##STR00002## where at least one of R.sub.1 to R.sub.5 and at least one of R.sub.6 to R.sub.10 is selected from perhaloalkyls, (per)haloaryls, (per)haloaralkyls, (per)haloalkaryls, and (per)halocycloalkyls; the remainder of R.sub.1 to R.sub.10 are the same or different organic substituents or hydrogen; and n is an integer of 1 or greater. The outer cover layer may comprise a polyurethane or polyurea composition. At least one portion of the golf ball comprises a composition that enhances physical properties and/or performance characteristics (e.g., coefficient of restitution) of the golf ball. Preferably, the coefficient of restitution of the core is 0.8 or greater.