First-Class Bowling Against Each Opponent Colin Birch
| Opponent | Balls | Mdns | Runs | Wkts | BB | Ave | 5wI | 10wM |
| Boland | 324 | 7 | 188 | 5 | 3-41 | 37.60 | 0 | 0 |
| Border | 231 | 11 | 87 | 5 | 3-17 | 17.40 | 0 | 0 |
| Eastern Province | 150 | 4 | 90 | 2 | 2-68 | 45.00 | 0 | 0 |
| Griqualand West | 186 | 7 | 106 | 6 | 3-41 | 17.66 | 0 | 0 |
| Kei | 104 | 6 | 38 | 5 | 3-25 | 7.60 | 0 | 0 |
| KwaZulu-Natal | 326 | 9 | 191 | 8 | 5-47 | 23.87 | 1 | 0 |
| KwaZulu-Natal Inland | 234 | 6 | 143 | 4 | 1-20 | 35.75 | 0 | 0 |
| South Western Districts | 156 | 7 | 54 | 3 | 2-23 | 18.00 | 0 | 0 |
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