For Glamorgan

26 (4×6, 22×4) SA Northeast v Worcestershire at Worcester, 2022 (RLC)
22 (4×6, 18×4) JP Maher v Essex at Sophia Gardens, 2003 (NL)
22 (9×6, 13×4) TR Bevan v Hampshire at The Gnoll, Neath, 2022 (RLC)
20 (17×4, 3×6) JA Rudolph v Sussex at Hove, 2014 (ODC)
20 (12×4, 8×6) CB Cooke v Gloucestershire at Bristol, 2019 (RLODC)
19 (2×6, 17×4) JH Kallis v Surrey at Pontypridd, 1999 (NL)
19 (9×4, 10×6) AN Petersen v Lancashire at Colwyn Bay, 2011 (CB40)
18 (1×6, 17×4) H Morris v Kent at Canterbury, 1996 (B&H)
18 (7×6, 11×4) MP Maynard v Surrey at The Oval, 1997 (SL)
18 (18×4) JP Maher v Worcestershire at Sophia Gardens, 2001 (NL)
17 (2×6, 15×4) MP Maynard v Derbyshire at Checkley, 1991 (SL)
17 (6×6, 11×4) MP Maynard v Middlesex at Lord`s, 1996 (B&H)

Against Glamorgan

42 (30×4, 12×6) AD Brown for Surrey at The Oval, 2002 (C&G)

26 (20×4, 4×6) MJ Prior for Sussex at Hove, 2006 (NL)
24 (19×4, 5×6) PD Trego for Somerset at Taunton, 2010 (P40)
24 (10×4, 14×6) DI Stevens for Kent at Swansea, 2017 (RL)
22 (21×4, 1×6) N Hussain for Essex at Chelmsford, 2003 (NL)
21 (21×4, 1×6) CC Benham for Hampshire at Rose Bowl, 2006 (NL)
21 (18×4, 3×6) DJ Malan for Middlesex at Lord’s, 2015 (RL50)
20 (20×4) ME Trescothick for Somerset at Taunton, 2001 (C&G)
20 (17×4, 3×6) RC Irani for Essex at Chelmsford, 2004 (NL)
19 (16×4, 3×6) DJ Capel for Northants at Northampton, 1990 (SL)