217 runs v Combined Universities at Sophia Gardens, Cardiff, 1995 (B&H)
178 runs v Essex at Sophia Gardens, Cardiff, 2001 (NL)
167 runs v Staffordshire at Sophia Gardens, Cardiff, 1989 (NWT)
151 runs v Hampshire at Sophia Gardens, Cardiff, 2005 (NL)

10 wickets v Leicestershire at Llandudno, 1969 (SL); v Minor Counties at Swansea, 1980 (B&H); v Warwickshire at Edgbaston, 1988 (SL); v Surrey at The Oval, 1993 (AXA); v Dorset at Sophia Gardens, Cardiff, 1995 (NWT); v Gloucestershire at Sophia Gardens, Cardiff, 2003 (NL)