Cory Spinks Cory Spinks Cory Spinks (born Cory Calvin; February 20, 1978) is an American former professional boxer who competed from 1997 to 2013. He is a two-weight world champion, having held the undisputed welterweight title from 2003 to 2005, and the IBF junior middleweight title twice between 2006 and 2010. Additionally, he challenged for the lineal middleweight title in 2007. Spinks is the son of former world heavyweight champion Leon Spinks and nephew of former world heavyweight and light heavyweight champion Michael Spinks. He has an amateur record of 78-3, and won the National Golden Gloves and National Police Athletic League
William A. Spinks powder" of the 1820s being the earliest recorded example, although considered dubious by some billiards researchers), the Spinks Company product (which is still emulated by modern manufacturers with differing, proprietary compounds) effectively revolutionized billiards. The modern product provided a cue tip friction enhancer that allowed the tip to better grip the cue ball briefly and impart a previously unattainable amount of spin on the ball, which consequently allowed more precise and extreme , made miscueing less likely, made and "" shots more plausible, and ultimately spawned the new cue sport of artistic billiards. Even the basic and shots of pool