By Glamorgan

577-4 v Gloucestershire at Rodney Parade, Newport, 1939
528-7d v Northamptonshire at Sophia Gardens, Cardiff, 2002
493-6 v Worcestershire at Abergavenny, 1990
481-3d v Gloucestershire at Spytty Park, Newport, 2019
481 v Middlesex at Sophia Gardens, Cardiff, 2002
478-5d v Middlesex at Sophia Gardens, Cardiff, 1985
471 v Gloucestershire at Abergavenny, 1995
468-9d v Leicestershire at Sophia Gardens, Cardiff, 2004
466 v Sussex at Hove, 2019
464-8d v Durham at Chester-le-Street, 2003
451 v Sri Lanka A at Swansea, 2004
448 v Northamptonshire at Swansea, 2011
447 v Sussex at Hove, 1985
442-9d v Surrey at Sophia Gardens, Cardiff, 1996
425-7d v Hampshire at Sophia Gardens, Cardiff, 1984
425 v Lancashire at Old Trafford, 1938

421-5d v Nottinghamshire at Sophia Gardens, Cardiff, 2022
421 v Warwickshire at Edgbaston, 1959
419 v Warwickshire at Edgbaston, 1996
415-9d v Kent at Canterbury, 2014
408 v Sussex at Horsham, 1929
403-7d v Derbyshire at Swansea, 2018

Against Glamorgan

712 by Northamptonshire at Northampton, 1998

554-8d by Sussex at Hove, 2022
540-7d by Essex at Chelmsford, 2001
536 by Derbyshire at Colwyn Bay, 2016
514-4d by Essex at Chelmsford, 2002
487 by Surrey at The Oval, 1997
473-7 by Kent at Cardiff Arms Park, 1936
463 by Somerset at Taunton, 1982
462-6 by Derbyshire at Sophia Gardens, Cardiff, 2002
457 by Northamptonshire at Northampton, 1925
449 by Hampshire at West End, 2003
448-5d by Surrey at Swansea, 2006
438 by Derbyshire at Derby, 2011
425-4d by Surrey at The Oval, 2005
417-2 by Warwickshire at Edgbaston, 1983
410-6 by Essex at Chelmsford, 2009
409-5d by Kent at Canterbury, 2009
408-4 by Middlesex at Southgate, 2005
406-9d by Northamptonshire at Sophia Gardens, Cardiff, 2018
400 by Northamptonshire at Northampton, 2006