| 51 | 5-21 | PM Walker | v Cornwall | Boscawen Park, Truro | 1970 | a293 |
| 79 | 4-34 | PM Walker | v Staffordshire | Trentham Road, Stoke-on-Trent | 1971 | a486 |
| 69 | 4-44 | RC Ontong | v West Indians | St Helen's, Swansea | 1976 | a1780 |
| 65 | 4-27 | GC Holmes | v Northamptonshire | The Gnoll, Neath | 1986 | a4945 |
| 53 | 4-39 | CA Ingram | v Middlesex | Brunton Memorial Ground, Radlett | 2017 | a25561 |
| 58 | 4-63 | M de Lange | v Surrey | Sophia Gardens, Cardiff | 2019 | a27338 |
| 66 | 5-61 | JM Cooke | v Essex | Sophia Gardens, Cardiff | 2021 | a28528 |