Winnipeg's Sherman Greenfeld was the International Racquetball Federation's World Champion in 1994 and 1998, and won Tournament of the America's championships in 1990, 1994 and 1998.

The most dominant racquetball player in Canada during the 1980s and 90s, Greenfeld won more international championships–all sports–than any other Canadian. He also earned bronze medals at the 1993 World games and 1995 Tournament of the Americas, now known as the Pan American Racquetball Championships.

Greenfeld is also a 10-time Canadian racquetball champion: 1986–88, 1990–91, 1993–96, and 1998. The Canadian junior racquetball championship trophy is the Sherman Greenfeld Award.