Cue sports playing nine-ball. Snooker balls are smaller than American-style pool balls with a diameter of 52.5 mm ( in), and come in sets of 22 (15 reds, 6 "", and a cue ball). English billiard balls are the same size as snooker balls and come in sets of three balls (two cue balls and a red, an object ball). Other games, such as bumper pool, have custom ball sets. Billiard balls have been made from many different materials since the start of the game, including clay, bakelite, celluloid, crystallite, ivory, plastic, steel and wood. The dominant material from 1627 until the
David Gray (snooker player) to Stephen Maguire in the final. It was during this tournament that Gray scored his first maximum break – the 50th ever made in professional play – in the fifth frame of his last-32 match against Mark Selby (whom he had defeated in the 2003 Scottish Open final). His semi-final against Joe Perry was particularly memorable as Perry appeared to have won the match 9-7 by potting a colour leaving Gray requiring a snooker, but Perry himself was snookered on the next red, failed to hit it, and didn't score another point as Gray cleared the table then hit a