Largest Margins of Defeat by Glamorgan in List A cricket

249 runs by Somerset at Taunton, 2010 (P40)
220 runs by Somerset at Neath, 1990 (SL)

10 wickets by Leicestershire at Leicester, 1972 (SL); by Middlesex at Lord`s, 1976 (SL); by Hampshire at Southampton, 1988 (B&H); by Essex at Chelmsford, 1989 (B&H); by Essex at Chelmsford, 2006 (C&G)