| 493-6 | Glamorgan v Worcestershire | Pen-y-Pound, Abergavenny | 1990 | f38818 |
| 384 | Glamorgan v Kent | Cardiff Arms Park, Cardiff | 1936 | f15282 |
| 378 | Glamorgan v Kent | Pen-y-Pound, Abergavenny | 1994 | f41184 |
| 375 | Glamorgan v Surrey | Kennington Oval, Kennington | 1927 | f11909 |
| 375 | Glamorgan v Derbyshire | Cardiff Arms Park, Cardiff | 1954 | f20485 |
| 367-6 | Glamorgan v Hampshire | County Ground, Southampton | 1990 | f38758 |
| 367-4 | Glamorgan v Essex | County Ground, Chelmsford | 2001 | f45878 |
| 361 | Glamorgan v Northamptonshire | Sophia Gardens, Cardiff | 2003 | f47415 |
| 351-7 | Glamorgan v Northamptonshire | County Ground, Northampton | 2012 | f54086 |
| 342 | Glamorgan v Essex | Cardiff Arms Park, Cardiff | 1932 | f13841 |
| 341-4 | Glamorgan v Sussex | Sophia Gardens, Cardiff | 1999 | f44380 |
| 341 | Glamorgan v Derbyshire | Sophia Gardens, Cardiff | 2002 | f46577 |
| 334-6 | Glamorgan v Yorkshire | St George's Road, Harrogate | 1955 | f20970 |
| 334-9 | Glamorgan v Worcestershire | County Ground, New Road, Worcester | 1993 | f40607 |
| 334-7 | Glamorgan v Worcestershire | County Ground, New Road, Worcester | 2022 | f60906 |
| 332-5 | Glamorgan v Somerset | Morlands Athletic Ground, Glastonbury | 1970 | f28312 |
| 324 | Glamorgan v Worcestershire | County Ground, New Road, Worcester | 2003 | f47377 |
| 321 | Glamorgan v Derbyshire | County Ground, Derby | 1995 | f41837 |
| 320-8 | Glamorgan v Gloucestershire | College Ground, Cheltenham | 2002 | f46688 |
| 319-6 | Glamorgan v Gloucestershire | Phoenix County Ground, Bristol | 1982 | f34251 |
| 319 | Glamorgan v Worcestershire | County Ground, New Road, Worcester | 1997 | f43203 |
| 314 | Glamorgan v Kent | St Helen's, Swansea | 1990 | f38717 |
| 311-8 | Glamorgan v Gloucestershire | St Helen's, Swansea | 1932 | f13897 |
| 311-5 | Glamorgan v Essex | Cardiff Arms Park, Cardiff | 1948 | f17863 |
| 311 | Glamorgan v Essex | Castle Park Cricket Ground, Colchester | 1981 | f33718 |
| 310-5 | Glamorgan v Northamptonshire | Sophia Gardens, Cardiff | 2000 | f45200 |
| 310-8 | Glamorgan v Derbyshire | The Incora County Ground, Derby | 2022 | f60833 |
| 309 | Glamorgan v Gloucestershire | Wagon Works Ground, Gloucester | 1952 | f19625 |
| 309-4 | Glamorgan v Northamptonshire | County Ground, Northampton | 1990 | f38751 |
| 309-9 | Glamorgan v Kent | Spitfire Ground, St Lawrence, Canterbury | 2015 | f56387 |
| 307-8 | Glamorgan v Middlesex | John Walker's Ground, Southgate | 2000 | f45192 |
| 304-6 | Glamorgan v Somerset | St Helen's, Swansea | 1991 | f39354 |
| 302 | Glamorgan v Hampshire | County Ground, Southampton | 1978 | f32240 |
