First-Class Bowling Against Each Opponent Will Williams
| Opponent | Balls | Mdns | Runs | Wkts | BB | Ave | 5wI | 10wM |
| Auckland | 1024 | 54 | 465 | 17 | 4-16 | 27.35 | 0 | 0 |
| Central Districts | 1374 | 88 | 484 | 14 | 3-38 | 34.57 | 0 | 0 |
| Durham | 108 | 1 | 84 | 0 | | | | |
| Essex | 622 | 15 | 272 | 16 | 4-24 | 17.00 | 0 | 0 |
| Gloucestershire | 270 | 15 | 79 | 1 | 1-24 | 79.00 | 0 | 0 |
| Hampshire | 402 | 20 | 143 | 8 | 3-14 | 17.87 | 0 | 0 |
| Kent | 597 | 25 | 194 | 11 | 3-26 | 17.63 | 0 | 0 |
| Middlesex | 174 | 10 | 62 | 2 | 2-39 | 31.00 | 0 | 0 |
| Northamptonshire | 577 | 26 | 211 | 12 | 5-41 | 17.58 | 1 | 0 |
| Northern Districts | 1098 | 47 | 473 | 22 | 5-26 | 21.50 | 1 | 0 |
| Nottinghamshire | 460 | 21 | 176 | 5 | 3-31 | 35.20 | 0 | 0 |
| Otago | 1619 | 65 | 650 | 26 | 3-13 | 25.00 | 0 | 0 |
| Somerset | 629 | 28 | 280 | 10 | 3-71 | 28.00 | 0 | 0 |
| Surrey | 741 | 31 | 339 | 14 | 4-23 | 24.21 | 0 | 0 |
| Warwickshire | 366 | 20 | 156 | 7 | 4-70 | 22.28 | 0 | 0 |
| Wellington | 1670 | 92 | 585 | 37 | 5-58 | 15.81 | 1 | 0 |
| Worcestershire | 66 | 1 | 55 | 1 | 1-30 | 55.00 | 0 | 0 |
| Yorkshire | 236 | 14 | 73 | 4 | 3-64 | 18.25 | 0 | 0 |