| Balls | Mdns | Runs | Wkts | BB | Econ | 4wI | 5wI | |
| BJ Currie | 563 | 8 | 377 | 26 | 4-32 | 4.01 | 2 | - |
| CD de Lange | 546 | 4 | 371 | 16 | 5-60 | 4.07 | - | 1 |
| MRJ Watt | 4157 | 50 | 2943 | 108 | 5-33 | 4.24 | 3 | 1 |
| H Tahir | 1454 | 7 | 1033 | 40 | 5-38 | 4.26 | 2 | 1 |
| BTJ Wheal | 873 | 15 | 623 | 27 | 3-34 | 4.28 | - | - |
| GD Drummond | 1263 | 22 | 932 | 25 | 4-41 | 4.42 | 1 | - |
| PJC Hoffmann | 743 | 5 | 555 | 16 | 3-22 | 4.48 | - | - |
| RM Haq | 2633 | 14 | 1975 | 60 | 5-54 | 4.50 | 2 | 1 |
| B McMullen | 1559 | 29 | 1177 | 53 | 5-34 | 4.52 | 1 | 1 |
| TB Sole | 504 | 7 | 387 | 10 | 4-15 | 4.60 | 1 | - |
| CM Wright | 861 | 15 | 663 | 29 | 4-29 | 4.62 | 1 | - |
| MA Parker | 414 | 6 | 327 | 12 | 4-33 | 4.73 | 1 | - |
| A Neill | 431 | 2 | 342 | 14 | 3-32 | 4.76 | - | - |
| GA Rogers | 512 | 5 | 409 | 8 | 2-22 | 4.79 | - | - |
| RT Lyons | 1093 | 10 | 901 | 20 | 3-21 | 4.94 | - | - |
| MA Leask | 2704 | 13 | 2243 | 70 | 4-24 | 4.97 | 3 | - |
| SM Sharif | 4083 | 42 | 3392 | 110 | 5-33 | 4.98 | 3 | 2 |
| JH Davey | 1301 | 18 | 1082 | 49 | 6-28 | 4.99 | 1 | 2 |
| CB Sole | 1514 | 17 | 1288 | 53 | 4-27 | 5.10 | 3 | - |
| G Goudie | 729 | 8 | 623 | 23 | 5-73 | 5.12 | - | 1 |
| GT Main | 716 | 12 | 616 | 34 | 5-52 | 5.16 | 1 | 1 |
| CS MacLeod | 968 | 4 | 836 | 11 | 2-26 | 5.18 | - | - |
| RML Taylor | 713 | 5 | 617 | 20 | 3-39 | 5.19 | - | - |
| RD Berrington | 1550 | 8 | 1345 | 34 | 4-40 | 5.20 | 1 | - |
| AC Evans | 1928 | 17 | 1679 | 58 | 5-43 | 5.22 | 2 | 1 |
| JAR Blain | 1329 | 12 | 1173 | 41 | 5-22 | 5.29 | 1 | 1 |
| JD Nel | 730 | 10 | 649 | 14 | 4-25 | 5.33 | 1 | - |
| CN Greaves | 641 | 2 | 576 | 25 | 5-53 | 5.39 | 1 | 1 |
| JA Jarvis | 511 | 3 | 470 | 14 | 4-40 | 5.51 | 1 | - |
| RR Watson | 570 | 3 | 528 | 12 | 3-18 | 5.55 | - | - |
| I Wardlaw | 1108 | 7 | 1036 | 36 | 4-22 | 5.61 | 2 | - |
| MW Machan | 402 | 2 | 384 | 9 | 3-31 | 5.73 | - | - |
| DR Brown | 629 | 3 | 614 | 15 | 3-37 | 5.85 | - | - |
The list shows 33 occurrences of economy rates of 6 or less