For Glamorgan

576 (96 overs) RDB Croft v Hampshire at Swansea, 1993
552 (92 overs) DA Cosker v Durham at Chester-le-Street, 1998
545 (90.5 overs) BL Muncer v Sussex at Swansea, 1948
543 (90.3overs) RDB Croft v Derbyshire at Derby, 1995
543 (90.3 overs) RDB Croft v Northamptonshire at Sophia Gardens, Cardiff, 2001
538 (89.4 overs) RDB Croft v Durham at Sophia Gardens, Cardiff, 1999
516 (86 overs) BJ Lloyd v Cambridge University at Swansea, 1975
508 (84.4 overs) JE McConnon v Northamptonshire at Northampton, 1958
506 (84.2 overs) SR Barwick v Somerset at Swansea, 1994
506 (84.2 overs) RDB Croft v Somerset at Swansea, 1996
504 (84 overs) JC Clay v Nottinghamshire at Swansea, 1933
502 (83.4 overs) RDB Croft v Derbyshire at Derby, 2003
487 (81.4 overs) DJ Shepherd v Hampshire at Bournemouth, 1963
486 (81 overs) RDB Croft v Essex at Southend (Southchurch), 2000
486 (81 overs) MA Nash v Warwickshire at Edgbaston, 1980
480 (80 overs) RJ Shastri v Gloucestershire at Abergavenny, 1991
478 (79.4 overs) RDB Croft v Derbyshire at Derby, 2009

Against Glamorgan

589 (98.1 overs) AP Freeman for Kent at Gravesend, 1934
518 (86.2 overs) JF Brown for Northamptonshire at Sophia Gardens, Cardiff, 2003
516 (86 overs) CE Waller for Sussex at Colwyn Bay, 1974
510 (85 overs) G Miller for Derbyshire at Derby, 1982
504 (84 overs) NC Phillips for Durham at Sophia Gardens, Cardiff, 1999
490 (81.4 overs) CWL Parker for Gloucestershire at Bristol (County), 1932
486 (81 overs) AE Thomas for Northamptonshire at Swansea, 1923
486 (81 overs) FJ Titmus for Middlesex at Lord`s, 1954
486 (66 overs) TW Goddard for Gloucestershire at Rodney Parade, Newport, 1939
478 (79.4 overs) CWL Parker for Gloucestershire at Cheltenham (Victoria), 1923