Leagues
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USBC has data for Derrick S Tong starting from 2002.
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Chinese Bowling Club (W) - 191 over 69 games
2001-2002
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Chinese Bowling Club (S) - data not found
Chinese Bowling Club (W) - 187 over 75 games
Sport/Challenge average conversions are located at the bottom of the page.
Recent Composite Averages
2003: 191 over 69 games (House)2002: 187 over 75 games (House)