| 1 runs | Warwickshire v Lancashire | Emirates Old Trafford, Manchester | tt4992 |
| 1 runs | Glamorgan v Kent | The Nevill Ground, Tunbridge Wells | tt5082 |
| 1 runs | Warwickshire v Northamptonshire | Edgbaston, Birmingham | tt5105 |
| 2 runs | Glamorgan v Somerset | The SSE SWALEC Stadium, Cardiff | tt4959 |
| 2 runs | Northamptonshire v Worcestershire | County Ground, New Road, Worcester | tt4995 |
| 2 runs | Nottinghamshire v Derbyshire | Trent Bridge, Nottingham | tt5038 |
| 3 runs | Kent v Somerset | County Ground, Taunton | tt4938 |
| 3 runs | Worcestershire v Durham | Emirates Durham International Cricket Ground, Chester-le-Street | tt4952 |
| 3 runs | Glamorgan v Somerset | County Ground, Taunton | tt4999 |
| 3 runs | Northamptonshire v Derbyshire | Queen's Park, Chesterfield | tt5023 |
| 4 runs | Glamorgan v Middlesex | The SSE SWALEC Stadium, Cardiff | tt4941 |
| 4 runs | Northamptonshire v Lancashire | County Ground, Northampton | tt4972 |
| 4 runs | Hampshire v Sussex | The Brighton and Hove Jobs County Ground, Hove | tt5086 |
| 5 runs | Sussex v Somerset | County Ground, Taunton | tt4922 |
| 5 runs | Durham v Derbyshire | The 3aaa County Ground, Derby | tt4940 |
| 6 runs | Sussex v Gloucestershire | The Brighton and Hove Jobs County Ground, Hove | tt4910 |
| 6 runs | Durham v Yorkshire | Emirates Durham International Cricket Ground, Chester-le-Street | tt4930 |
| 6 runs | Hampshire v Somerset | The Ageas Bowl, Southampton | tt5107 |
| 7 runs | Kent v Sussex | Spitfire Ground, St Lawrence, Canterbury | tt4896 |
| 8 runs | Warwickshire v Leicestershire | Grace Road, Leicester | tt5019 |
| 8 runs | Lancashire v Warwickshire | Edgbaston, Birmingham | tt5087 |
