| 190 runs | Auckland Under-18s v Central Districts Under-18s | Lincoln No 3, Lincoln | misc222171 |
| 140 runs | Otago Under-18s v Wellington Under-18s | Bert Sutcliffe Oval, Lincoln | misc222173 |
| 115 runs | Central Districts Under-18s v Wellington Under-18s | Nelson Park, Napier | misc176511 |
| 102 runs | Canterbury Under-18s v Otago Under-18s | Logan Park, Dunedin | misc176508 |