| 1 | 213 | MD Moxon & AA Metcalfe | Yorkshire v Glamorgan | 1991 | a7019 |
| 2 | 184 | NJ Dexter & AJ Hall | Kent v Glamorgan | 2006 | a17475 |
| 3 | 191 | AI Gait & CWG Bassano | Derbyshire v Glamorgan | 2003 | a15133 |
| 4 | 169* | MTG Elliott & MP Maynard | Glamorgan v Northamptonshire | 2004 | a15862 |
| 5 | 224 | Shakib Al Hasan & Mahmudullah | Bangladesh v New Zealand | 2017 | a25653 |
| 6 | 136 | Glamorgan v Warwickshire | 1996 | a9873 | |
| 7 | 124 | Mohammad Yousuf & Rashid Latif | Pakistan v Australia | 2001 | a13519 |
| 8 | 102 | RC Ontong & J Derrick | Glamorgan v Kent | 1985 | a4371 |
| 9 | 84* | NJ Dexter & ST Finn | Middlesex v Glamorgan | 2014 | a23418 |
| 10 | 48 | R McLaren & M Morkel | South Africa v India | 2013 | a22666 |
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