| Extras | B | LB | W | NB | Pen |
| 99 | 4 | 13 | 11 | 71 | | v Somerset | St Helen's, Swansea | 1994 | f41197 |
| 94 | 5 | 29 | 10 | 50 | | v Surrey | Sophia Gardens, Cardiff | 1996 | f42573 |
| 90 | 21 | 14 | 14 | 36 | 5 | v Durham | Seat Unique Riverside Ground, Chester-le-Street | 2023 | f61584 |
| 87 | 13 | 26 | 12 | 36 | | v Gloucestershire | Pen-y-Pound, Abergavenny | 1995 | f41878 |
| 82 | 15 | 17 | | 50 | | v Leicestershire | Sophia Gardens, Cardiff | 2022 | f60843 |
| 79 | 4 | 13 | 6 | 56 | | v Leicestershire | Grace Road, Leicester | 2015 | f56347 |
| 78 | 16 | 10 | 2 | 50 | | v Warwickshire | Sophia Gardens, Cardiff | 1993 | f40621 |
| 78 | 10 | 21 | 5 | 42 | | v Gloucestershire | Sophia Gardens, Cardiff | 2006 | f49522 |
| 77 | 20 | 25 | 8 | 24 | | v Warwickshire | The SWALEC Stadium, Cardiff | 2008 | f50850 |
| 76 | 19 | 25 | 1 | 31 | | v Leicestershire | St Helen's, Swansea | 1996 | f42526 |
| 74 | 3 | 16 | 4 | 51 | | v Sri Lankans | Eugene Cross Park, Ebbw Vale | 1990 | f38878 |
| 74 | 8 | 14 | 6 | 46 | | v Derbyshire | County Ground, Derby | 1995 | f41837 |
| 74 | 13 | 21 | 6 | 34 | | v Surrey | St Helen's, Swansea | 1998 | f43769 |
| 71 | 6 | 27 | 2 | 36 | | v Warwickshire | Sophia Gardens, Cardiff | 1997 | f43043 |
| 70 | 9 | 20 | 9 | 32 | | v Lancashire | Old Trafford, Manchester | 1989 | f38144 |
| 70 | 16 | 14 | 6 | 34 | | v Yorkshire | Penrhyn Avenue, Rhos-on-Sea, Colwyn Bay | 2003 | f47398 |
| 70 | 28 | 15 | 9 | 18 | | v Sussex | The 1st Central County Ground, Hove | 2023 | f61576 |
| 69 | 9 | 36 | 10 | 14 | | v Sussex | St Helen's, Swansea | 1995 | f41736 |
| 68 | 14 | 21 | 6 | 22 | 5 | v Derbyshire | County Ground, Derby | 2002 | f46635 |
| 67 | 18 | 12 | 7 | 30 | | v Northamptonshire | St Helen's, Swansea | 1989 | f38083 |
| 67 | 7 | 38 | 8 | 14 | | v Kent | St Lawrence Ground, Canterbury | 1999 | f44448 |
| 67 | 25 | 21 | 3 | 18 | | v Sussex | The 1st Central County Ground, Hove | 2019 | f59487 |
| 66 | 11 | 19 | 6 | 30 | | v Worcestershire | County Ground, New Road, Worcester | 1997 | f43203 |
| 66 | 7 | 17 | 8 | 34 | | v Derbyshire | County Ground, Derby | 2004 | f47989 |
| 66 | 23 | 22 | 7 | 14 | | v Northamptonshire | Penrhyn Avenue, Rhos-on-Sea, Colwyn Bay | 2007 | f50161 |
| 66 | 25 | 29 | 4 | 8 | | v Leicestershire | Sophia Gardens, Cardiff | 2019 | f59599 |
| 65 | 3 | 16 | 4 | 42 | | v Kent | Pen-y-Pound, Abergavenny | 1994 | f41184 |
| 65 | 5 | 11 | 6 | 43 | | v Young Australia | The Gnoll, Neath | 1995 | f41825 |
| 65 | 9 | 13 | 11 | 32 | | v Derbyshire | County Ground, Derby | 2007 | f50137 |
| 64 | 26 | 20 | 5 | 13 | | v Warwickshire | Edgbaston, Birmingham | 1987 | f36963 |
| 64 | 21 | 13 | 6 | 24 | | v Surrey | The SWALEC Stadium, Cardiff | 2011 | f53178 |
| 63 | 14 | 16 | 4 | 29 | | v Surrey | Sophia Gardens, Cardiff | 1990 | f38786 |
| 62 | 8 | 20 | | 34 | | v Middlesex | St Helen's, Swansea | 1984 | f35251 |
| 62 | 7 | 10 | 5 | 40 | | v Surrey | Kennington Oval, Kennington | 1987 | f37159 |
| 61 | 4 | 16 | 3 | 38 | | v Worcestershire | County Ground, New Road, Worcester | 1992 | f39968 |
| 61 | 9 | 11 | 1 | 40 | | v Durham | Penrhyn Avenue, Rhos-on-Sea, Colwyn Bay | 1993 | f40556 |
| 61 | 10 | 17 | 1 | 33 | | v Middlesex | Sophia Gardens, Cardiff | 1993 | f40578 |
| 61 | 15 | 11 | 3 | 32 | | v Leicestershire | The SWALEC Stadium, Cardiff | 2012 | f54054 |
| 60 | 46 | 10 | 2 | 2 | | v Leicestershire | Cardiff Arms Park, Cardiff | 1959 | f22939 |
| 60 | 6 | 25 | 6 | 23 | | v Derbyshire | County Ground, Derby | 1985 | f35825 |
| 60 | 6 | 21 | 5 | 28 | | v Somerset | St Helen's, Swansea | 1996 | f42452 |
| 60 | 4 | 19 | 5 | 32 | | v Australians | Sophia Gardens, Cardiff | 1997 | f43154 |
| 60 | 9 | 15 | 6 | 30 | | v Yorkshire | Sophia Gardens, Cardiff | 1998 | f43835 |
| 60 | 4 | 8 | 4 | 44 | | v Sussex | County Ground, Hove | 1998 | f43848 |
| 60 | 12 | 7 | 8 | 33 | | v Middlesex | Sophia Gardens, Cardiff | 2002 | f46656 |
