| 150 | PR Stirling | Carrickfergus v Ballymena | Middle Road, Carrickfergus | misc317589 |
| 143 | RD McCann | Instonians v Ballymena | Instonians Cricket Club, Shaw's Bridge Lower Ground, Belfast | misc317640 |
| 137* | GJ Thompson | Lisburn v Bangor | Upritchard Park, Bangor | misc317597 |
| 117 | D van Wyk | Instonians v Bangor | Instonians Cricket Club, Shaw's Bridge Lower Ground, Belfast | misc317601 |
| 117* | J Stevenson | Instonians v Ballymena | Instonians Cricket Club, Shaw's Bridge Lower Ground, Belfast | misc317640 |
| 108* | J Stevenson | Instonians v North Down | The Green, Comber | misc317570 |
| 107 | RE Gelderbloem | Carrickfergus v Bangor | Upritchard Park, Bangor | misc317632 |
| 102 | JG Strydom | Lisburn v Civil Service North | Wallace Park, Lisburn | misc317571 |
| 100 | I Robertson | North Down v Civil Service North | The Green, Comber | misc317610 |