Teams James Williams played for

Main FCGlamorgan (1993)
Minor Counties ChampionshipWales Minor Counties (1997)
Minor Counties TrophyWales Minor Counties (1998)
Second Eleven ChampionshipGlamorgan Second XI (1991-2001)
 Worcestershire Second XI (1997)
Second Eleven TrophyGlamorgan Second XI (1992-1998)
 Worcestershire Second XI (1997)
Cricketer CupOld Cliftonians (1992-2014)
MiscellaneousWales Under-15s (1988)
 Glamorgan Colts (1990-1996)
 Welsh Schools (1990)
 Wales Under-19s (1990)
 Glamorgan Young Cricketers (1990-1992)
 Glamorgan Second XI (1991-1998)
 Durham University (1992-1995)
 Wales Minor Counties (1997-1998)