| 225 | Bedfordshire v Glamorgan | Sophia Gardens, Cardiff | 1998 | a11253 |
| 170-9 | Buckinghamshire v Glamorgan | Shardeloes, Amersham | 1972 | a772 |
| 85 | Cheshire v Glamorgan | Sophia Gardens, Cardiff | 1987 | a5299 |
| 99 | Cornwall v Glamorgan | Boscawen Park, Truro | 1970 | a293 |
| 298-8 | Derbyshire v Glamorgan | The Incora County Ground, Derby | 2023 | a30114 |
| 261-8 | Dorset v Glamorgan | St Helen's, Swansea | 1990 | a6609 |
| 307-2 | Durham v Glamorgan | Emirates Durham International Cricket Ground, Chester-le-Street | 2012 | a22083 |
| 341 | Essex v Glamorgan | The Cloud County Ground, Chelmsford | 2022 | a29370 |
| 288-5 | Gloucestershire v Glamorgan | The SWALEC Stadium, Cardiff | 2013 | a22629 |
| 371-4 | Hampshire v Glamorgan | County Ground, Southampton | 1975 | a1477 |
| 159-9 | Hertfordshire v Glamorgan | St Helen's, Swansea | 1969 | a176 |
| 235 | Ireland v Glamorgan | Sophia Gardens, Cardiff | 2006 | a17409 |
| 341 | Kent v Glamorgan | St Helen's, Swansea | 2017 | a25576 |
| 275-3 | Lancashire v Glamorgan | Old Trafford, Manchester | 2010 | a20553 |
| 291-5 | Leicestershire v Glamorgan | St Helen's, Swansea | 1984 | a4093 |
| 291-5 | Leicestershire v Glamorgan | Penrhyn Avenue, Rhos-on-Sea, Colwyn Bay | 2008 | a19099 |
| 230-6 | Lincolnshire v Glamorgan | Lindum Sports Club Ground, Lincoln | 2004 | a15875 |
| 304-6 | Middlesex v Glamorgan | Sophia Gardens, Cardiff | 2018 | a26424 |
| 177 | Norfolk v Glamorgan | County Ground, Lakenham | 1983 | a3734 |
| 340-5 | Northamptonshire v Glamorgan | Sophia Gardens, Cardiff | 2023 | a30169 |
| 281-6 | Nottinghamshire v Glamorgan | St Helen's, Swansea | 2011 | a21442 |
| 191-5 | Oxfordshire v Glamorgan | St Helen's, Swansea | 1993 | a8092 |
| 151-9 | Scotland v Glamorgan | The SWALEC Stadium, Cardiff | 2012 | a22067 |
| 372-7 | Somerset v Glamorgan | The Cooper Associates County Ground, Taunton | 2018 | a26415 |
| 151 | Staffordshire v Glamorgan | Sophia Gardens, Cardiff | 1989 | a6109 |
| 177-8 | Suffolk v Glamorgan | The Victory Ground, Bury St Edmunds | 2005 | a16612 |
| 438-5 | Surrey v Glamorgan | The AMP Oval, Kennington | 2002 | a14362 |
| 347-7 | Sussex v Glamorgan | The 1st Central County Ground, Hove | 2019 | a27374 |
| 331-7 | Warwickshire v Glamorgan | The Gnoll, Neath | 2023 | a30124 |
| 337-9 | Worcestershire v Glamorgan | County Ground, New Road, Worcester | 2022 | a29419 |
| 257 | Yorkshire v Glamorgan | Penrhyn Avenue, Rhos-on-Sea, Colwyn Bay | 2013 | a22601 |
| 257-9 | Yorkshire v Glamorgan | Sophia Gardens, Cardiff | 2022 | a29349 |
| 167 | Zimbabwe v Glamorgan | Harare Sports Club, Harare | 1990/91 | a6967 |
| 312-8 | British Universities v Glamorgan | FP Fenner's Ground, Cambridge | 1996 | a9803 |
| 218-8 | Combined Universities v Glamorgan | Sophia Gardens, Cardiff | 1988 | a5646 |
| 226 | Durham Cricket Board v Glamorgan | Feethams Cricket Ground, Darlington | 2003 | a15094 |
| 177 | Hampshire Cricket Board v Glamorgan | County Ground, Southampton | 1999 | a12002 |
| 223-3 | Minor Counties v Glamorgan | Christ Church Ground, Oxford | 1987 | a5231 |
| 143-6 | Minor Counties South v Glamorgan | Hardenhuish Park, Chippenham | 1972 | a654 |
| 107 | Minor Counties West v Glamorgan | Shardeloes, Amersham | 1977 | a1876 |
| 327-9 | Pakistan A v Glamorgan | Spytty Park, Newport | 2016 | a24818 |
| 74-4 | Pakistanis v Glamorgan | St Helen's, Swansea | 1982 | a3374 |
| 309-3 | Sri Lanka A v Glamorgan | Sophia Gardens, Cardiff | 2004 | a15980 |
| 231-8 | Unicorns v Glamorgan | Dean Park, Bournemouth | 2010 | a20583 |
| 247-9 | West Indians v Glamorgan | St Helen's, Swansea | 1973 | a980 |
| 326-6 | West Indies A v Glamorgan | Eugene Cross Park, Ebbw Vale | 2006 | a17556 |
| 168 | Zimbabweans v Glamorgan | Christ College, Brecon | 1993 | a8207 |
