| 1 | 150 | DL Lloyd & SA Northeast | Glamorgan v Middlesex | 2022 | tt11012 |
| 2 | 132 | DL Lloyd & CA Ingram | Glamorgan v Kent | 2016 | tt5761 |
| 3 | 135 | MM Ali & EJG Morgan | England v Australia | 2015 | tt5130 |
| 4 | 110* | Babar Azam & LP Goldsworthy | Somerset v Glamorgan | 2020 | tt8995 |
| 5 | 97 | JC Hildreth & CJ Anderson | Somerset v Glamorgan | 2018 | tt7054 |
| 6 | 91 | KS Carlson & T van der Gugten | Glamorgan v Somerset | 2023 | tt12376 |
| 7 | 54 | M Mosehle & AL Phehlukwayo | South Africa v England | 2017 | tt6305 |
| 8 | 68 | MW Alleyne & J Lewis | Gloucestershire v Glamorgan | 2005 | tt225 |
| 9 | 33 | SJ Walters & DA Cosker | Glamorgan v Northamptonshire | 2012 | tt3023 |
| 10 | 55 | J Lewis & SP Kirby | Gloucestershire v Glamorgan | 2009 | tt1235 |