Abstract: A golf ball is provided that includes a molded resilient inner core made of a rubber compound and a polymeric cover surrounding the inner core. The rubber compound is a halo-butyl rubber polymer and a carbon black filler in an amount of 80% to 100% by weight of the total rubber component.

Abstract: An indoor golf game including a hole layout area enclosed by netting and a substantially planar rigid or solid rebound surface. A ball is hit from a tee in the hole layout area towards the rebound surface so as to rebound towards a hole in the green area of the hole layout. The ball used in the game comprises a ball having a hard surface so as to provide a feel of a standard golf ball, but a resilience substantially less than a standard golf ball so that the ball resiliently deforms and loses substantial kinetic energy upon striking the rebound surface. The ball has a hardness in the range of 70-105 Durometer, and a resilience in the range of 10%-40%.