List A Bowling Against Each Opponent by Greig Williamson
| Opponent | Balls | Mdns | Runs | Wkts | BB | Ave | 4wI | 5wI | SRate | Econ |
| Bermuda | 36 | 0 | 17 | 1 | 1-17 | 17.00 | 0 | 0 | 36.00 | 2.83 |
| Cumberland | 36 | 0 | 38 | 3 | 3-38 | 12.66 | 0 | 0 | 12.00 | 6.33 |
| Denmark | 60 | 2 | 34 | 3 | 3-34 | 11.33 | 0 | 0 | 20.00 | 3.40 |
| Derbyshire | 60 | 0 | 45 | 2 | 2-45 | 22.50 | 0 | 0 | 30.00 | 4.50 |
| Durham | 102 | 1 | 100 | 1 | 1-51 | 100.00 | 0 | 0 | 102.00 | 5.88 |
| Gloucestershire | 24 | 0 | 28 | 1 | 1-28 | 28.00 | 0 | 0 | 24.00 | 7.00 |
| Ireland | 18 | 0 | 29 | 0 | | | | | | 9.66 |
| Kenya | 18 | 0 | 24 | 0 | | | | | | 8.00 |
| Lancashire | 66 | 1 | 40 | 0 | | | | | | 3.63 |
| Lancashire Cricket Board | 30 | 0 | 26 | 1 | 1-26 | 26.00 | 0 | 0 | 30.00 | 5.20 |
| Leicestershire | 60 | 0 | 61 | 2 | 2-61 | 30.50 | 0 | 0 | 30.00 | 6.10 |
| Middlesex | 6 | 0 | 11 | 0 | | | | | | 11.00 |
| Middlesex Cricket Board | 18 | 1 | 20 | 0 | | | | | | 6.66 |
| Netherlands | 18 | 2 | 17 | 0 | | | | | | 5.66 |
| New Zealand | 12 | 0 | 18 | 0 | | | | | | 9.00 |
| Northamptonshire | 142 | 2 | 136 | 1 | 1-65 | 136.00 | 0 | 0 | 142.00 | 5.74 |
| Nottinghamshire | 24 | 0 | 17 | 0 | | | | | | 4.25 |
| Sussex | 66 | 1 | 56 | 1 | 1-24 | 56.00 | 0 | 0 | 66.00 | 5.09 |
| Worcestershire | 121 | 0 | 124 | 2 | 2-47 | 62.00 | 0 | 0 | 60.50 | 6.14 |
| Yorkshire | 114 | 1 | 90 | 2 | 2-54 | 45.00 | 0 | 0 | 57.00 | 4.73 |