| 1 | 362 | MD Moxon & MP Vaughan | Yorkshire v Glamorgan | 1996 | f42388 |
| 2 | 260 | RG Lumb & K Sharp | Yorkshire v Glamorgan | 1984 | f35280 |
| 3 | 339 | RS Bopara & A Flower | Essex v Glamorgan | 2006 | f49349 |
| 4 | 425* | A Dale & IVA Richards | Glamorgan v Middlesex | 1993 | f40578 |
| 5 | 320 | EC Joyce & Abdul Razzaq | Middlesex v Glamorgan | 2002 | f46656 |
| 6 | 226* | CA Ingram & CB Cooke | Glamorgan v Nottinghamshire | 2017 | f57897 |
| 7 | 160 | GG Wagg & CAJ Meschede | Glamorgan v Kent | 2016 | f57144 |
| 8 | 159 | M van Jaarsveld & MM Patel | Kent v Glamorgan | 2005 | f48706 |
| 9 | 155 | SJ Storey & RD Jackman | Surrey v Glamorgan | 1973 | f29653 |
| 10 | 144 | A Sidebottom & AL Robinson | Yorkshire v Glamorgan | 1977 | f31568 |
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