Ten-pin bowling may be won when one player is ahead by more frames than remain of the possible 12 frames. This variant reduces match length and scoring complexity for two-player matches. The maximum score in a game of ten-pin is 300, scored by making 12 strikes in a row. Before 1908, no one ever received an award for a game greater than 298. ABC used to award medals (gold, silver and bronze) for the three highest individual games rolled in the nation. The number of perfect games bowled during a season first became a problem for American Bowling Congress (ABC) officials in
Ten-pin bowling Track, DV8, Roto-Grip, Hammer, Circle Athletic, Columbia 300, Dyno-Thane, Fun Balls, Legends, MoRich, Robby, and Via Bowling. Specially designed shoe design and manufacture is also a significant enterprise that many companies have gotten involved in next to ball production. Some of the major shoe designers are Circle, Dexter, Etonic, and Linds. Individual stores that sell the merchandise made by these companies specifically for ten-pin bowlers are called pro shops. In the United States, bowling equipment sales totaled US$215 million in 1997 which is around the same figure as in 1996 when the Sporting Goods Manufacturers Association (SGMA) released their reports.