| Inns | HS |
| 422 | 80 | New Zealand Under-19s (1) v Pakistan Under-19s | Iqbal Stadium, Faisalabad | 1993/94 |
| 395 | 91 | New Zealand Young Cricketers (1) v England Young Cricketers | St Lawrence Ground, Canterbury | 1989 |
| 372 | 96 | New Zealand Under-19s (1) v England Under-19s | County Ground, New Road, Worcester | 2008 |
| 355-7 | 96 | New Zealand Young Cricketers (2) v England Young Cricketers | Pukekura Park, New Plymouth | 1990/91 |
| 343-9d | 94 | New Zealand Young Cricketers (1) v England Young Cricketers | Pukekura Park, New Plymouth | 1990/91 |
| 333 | 68 | New Zealand Under-19s (1) v Pakistan Under-19s | McLean Park, Napier | 1994/95 |
| 329 | 79 | New Zealand Under-19s (1) v England Under-19s | County Ground, New Road, Worcester | 1996 |
| 302 | 87 | New Zealand Under-19s (1) v India Under-19s | Bert Sutcliffe Oval, Lincoln | 2006/07 |
| 301 | 88 | New Zealand Under-19s (1) v India Under-19s | M Chinnaswamy Stadium, Bangalore | 1991/92 |
| 299 | 84 | New Zealand Young Cricketers (1) v Australia Under-19s | Manuka Oval, Canberra | 1985/86 |
| 298 | 72 | New Zealand Under-19s (1) v Australia Under-19s | Carisbrook, Dunedin | 1992/93 |
| 297 | 87 | New Zealand Under-19s (1) v Australia Under-19s | No 1 Sports Ground, Newcastle | 1995/96 |
| 285 | 77 | New Zealand Under-19s (1) v Australia Under-19s | Manuka Oval, Canberra | 1995/96 |
| 283-5 | 80 | New Zealand Under-19s (2) v Australia Under-19s | Manuka Oval, Canberra | 1995/96 |
| 271 | 65 | New Zealand Young Cricketers (2) v England Young Cricketers | St Lawrence Ground, Canterbury | 1989 |
| 263-7 | 61 | New Zealand Under-19s (2) v England Under-19s | Old Trafford, Manchester | 1996 |
| 262 | 46 | New Zealand Young Cricketers (1) v Australia Under-19s | University Oval, Adelaide | 1988/89 |
| 257-4 | 87* | New Zealand Under-19s (2) v South Africa Under-19s | Bert Sutcliffe Oval, Lincoln | 2000/01 |
| 252 | 59 | New Zealand Under-19s (1) v England Under-19s | Old Trafford, Manchester | 1996 |
| 246 | 44 | New Zealand Young Cricketers (2) v Australia Under-19s | Loxton North Oval, Loxton | 1988/89 |
| 238-9d | 51 | New Zealand Under-19s (1) v Pakistan Under-19s | Municipal Stadium, Gujranwala | 1993/94 |
| 234 | 72 | New Zealand Under-19s (1) v England Under-19s | County Ground, Taunton | 2008 |
| 231-6 | 89 | New Zealand Under-19s (2) v India Under-19s | Bert Sutcliffe Oval, Lincoln | 2006/07 |
| 225 | 65* | New Zealand Young Cricketers (2) v Australia Under-19s | Manuka Oval, Canberra | 1985/86 |
| 225 | 54 | New Zealand Under-19s (2) v Pakistan Under-19s | Trust Bank Park, Hamilton | 1994/95 |
| 224 | 72 | New Zealand Young Cricketers (2) v Australia Under-19s | Hagley Oval, Christchurch | 1986/87 |
| 210 | 54 | New Zealand Young Cricketers (1) v Australia Under-19s | Hagley Oval, Christchurch | 1986/87 |
| 207 | 57 | New Zealand Under-19s (1) v Pakistan Under-19s | Eden Park Outer Oval, Auckland | 1994/95 |
| 205 | 34 | New Zealand Young Cricketers (1) v England Young Cricketers | Old Trafford, Manchester | 1989 |
| 203 | 78 | New Zealand Young Cricketers (1) v Australia Under-19s | Albert Ground, Melbourne | 1985/86 |