First-Class Bowling Against Each Opponent Jacob Duffy
| Opponent | Balls | Mdns | Runs | Wkts | BB | Ave | 5wI | 10wM |
| Auckland | 3316 | 141 | 1656 | 55 | 5-27 | 30.10 | 3 | 0 |
| Australia A | 573 | 16 | 297 | 7 | 2-46 | 42.42 | 0 | 0 |
| Canterbury | 2777 | 104 | 1386 | 45 | 5-58 | 30.80 | 1 | 0 |
| Central Districts | 3128 | 118 | 1513 | 42 | 5-59 | 36.02 | 2 | 0 |
| Gloucestershire | 228 | 3 | 162 | 8 | 5-66 | 20.25 | 1 | 0 |
| India A | 598 | 22 | 290 | 7 | 2-36 | 41.42 | 0 | 0 |
| Kent | 180 | 3 | 122 | 5 | 4-60 | 24.40 | 0 | 0 |
| Northern Districts | 3561 | 143 | 1871 | 71 | 7-107 | 26.35 | 4 | 0 |
| Somerset | 114 | 4 | 75 | 1 | 1-36 | 75.00 | 0 | 0 |
| Sri Lanka A | 270 | 8 | 169 | 1 | 1-74 | 169.00 | 0 | 0 |
| Surrey | 144 | 1 | 158 | 0 | | | | |
| Warwickshire | 108 | 2 | 72 | 1 | 1-72 | 72.00 | 0 | 0 |
| Wellington | 3536 | 143 | 1916 | 50 | 7-89 | 38.32 | 1 | 0 |
| West Indies A | 169 | 7 | 74 | 6 | 4-47 | 12.33 | 0 | 0 |