Twenty20 Blast Batting and Fielding Against Each Opponent by Kane Williamson
| Opponent | Matches | Inns | Not Out | Runs | HS | Ave | 100 | 50 | Ct | St |
| Derbyshire | 5 | 5 | 0 | 166 | 65 | 33.20 | 0 | 1 | 1 | |
| Durham | 2 | 2 | 0 | 13 | 8 | 6.50 | 0 | 0 | 1 | |
| Essex | 3 | 3 | 0 | 104 | 53 | 34.66 | 0 | 1 | 2 | |
| Glamorgan | 3 | 3 | 0 | 47 | 25 | 15.66 | 0 | 0 | 0 | |
| Gloucestershire | 2 | 2 | 0 | 86 | 52 | 43.00 | 0 | 1 | 2 | |
| Hampshire | 4 | 4 | 1 | 126 | 50 | 42.00 | 0 | 1 | 1 | |
| Kent | 4 | 3 | 1 | 47 | 21 | 23.50 | 0 | 0 | 0 | |
| Lancashire | 3 | 3 | 1 | 35 | 28 | 17.50 | 0 | 0 | 0 | |
| Leicestershire | 1 | 1 | 0 | 77 | 77 | 77.00 | 0 | 1 | 0 | |
| Middlesex | 2 | 2 | 0 | 24 | 18 | 12.00 | 0 | 0 | 1 | |
| Northamptonshire | 4 | 4 | 2 | 109 | 52* | 54.50 | 0 | 1 | 1 | |
| Nottinghamshire | 4 | 4 | 0 | 100 | 44 | 25.00 | 0 | 0 | 1 | |
| Somerset | 3 | 3 | 0 | 36 | 28 | 12.00 | 0 | 0 | 1 | |
| Surrey | 4 | 4 | 0 | 76 | 32 | 19.00 | 0 | 0 | 2 | |
| Sussex | 3 | 3 | 0 | 35 | 14 | 11.66 | 0 | 0 | 0 | |
| Warwickshire | 4 | 3 | 0 | 121 | 49 | 40.33 | 0 | 0 | 1 | |
| Worcestershire | 1 | 1 | 0 | 37 | 37 | 37.00 | 0 | 0 | 0 | |