| 6-5 | AV Suppiah | Somerset v Glamorgan | 2011 | tt2313 |
| 5-16 | RE Watkins | Glamorgan v Gloucestershire | 2009 | tt1235 |
| 5-17 | MG Hogan | Glamorgan v Gloucestershire | 2017 | tt6379 |
| 4-16 | Azharullah | Northamptonshire v Glamorgan | 2013 | tt3751 |
| 4-16 | CP Wood | Hampshire v Glamorgan | 2015 | tt4932 |
| 4-17 | T van der Gugten | Glamorgan v Sussex | 2016 | tt5803 |
| 4-18 | DW Steyn | Glamorgan v Kent | 2016 | tt5761 |
| 4-20 | Shahid Afridi | Hampshire v Glamorgan | 2017 | tt6308 |
| 4-23 | JAR Harris | Glamorgan v Northamptonshire | 2009 | tt1326 |
| 4-25 | DA Cosker | Glamorgan v Surrey | 2015 | tt4990 |
| 4-26 | AU Rashid | Yorkshire v Glamorgan | 2016 | tt5879 |
| 4-27 | GG Wagg | Glamorgan v Hampshire | 2015 | tt4932 |
| 4-28 | MG Hogan | Glamorgan v Hampshire | 2016 | tt5740 |
| 4-28 | KMDN Kulasekara | Sussex v Glamorgan | 2016 | tt5803 |
| 4-30 | GB Hogg | Warwickshire v Glamorgan | 2004 | tt82 |
| 4-32 | CA Ingram | Glamorgan v Yorkshire | 2016 | tt5879 |
| 4-32 | D Paterson | South Africa v England | 2017 | tt6305 |
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