The Alley Group is a term used to refer to a group of ten-pin bowlers. This group of bowlers is typically composed of experienced players who have been bowling for many years and are highly skilled at the sport. The term 'Alley Group' is derived from the fact that these bowlers often practice in alleys, which are the lanes used for bowling. PINS is an acronym for the Professional International Network of Strike, which is an organization that provides support and resources to ten-pin bowlers.