| Inns | HS |
| 262 | 46 | New Zealand Young Cricketers (1) v Australia Under-19s | University Oval, Adelaide | 1988/89 |
| 246 | 44 | New Zealand Young Cricketers (2) v Australia Under-19s | Loxton North Oval, Loxton | 1988/89 |
| 205 | 34 | New Zealand Young Cricketers (1) v England Young Cricketers | Old Trafford, Manchester | 1989 |
| 178 | 43 | New Zealand Under-19s (2) v Pakistan Under-19s | McLean Park, Napier | 1994/95 |
| 167 | 47 | New Zealand Under-19s (2) v India Under-19s | M Chinnaswamy Stadium, Bangalore | 1991/92 |
| 166 | 49 | New Zealand Young Cricketers (2) v Australia Under-19s | Pukekura Park, New Plymouth | 1986/87 |
| 165 | 47 | New Zealand Under-19s (2) v Australia Under-19s | Waitara Oval, Sydney | 1995/96 |
| 160 | 45 | New Zealand Young Cricketers (1) v India Under-19s | Seddon Park, Hamilton | 1987/88 |
| 159 | 45* | New Zealand Under-19s (1) v Pakistan Under-19s | Trust Bank Park, Hamilton | 1994/95 |
| 153 | 40 | New Zealand Under-19s (2) v Australia Under-19s | No 1 Sports Ground, Newcastle | 1995/96 |
| 149 | 33 | New Zealand Young Cricketers (1) v Australia Under-19s | Loxton North Oval, Loxton | 1988/89 |
| 148 | 42 | New Zealand Under-19s (2) v England Under-19s | County Ground, Taunton | 2008 |
| 125-2 | 44 | New Zealand Under-19s (2) v Pakistan Under-19s | Iqbal Stadium, Faisalabad | 1993/94 |
| 110 | 28* | New Zealand Under-19s (1) v England Under-19s | Basin Reserve, Wellington | 1998/99 |
| 100 | 44 | New Zealand Under-19s (1) v India Under-19s | Carisbrook, Dunedin | 2006/07 |
| 77-3 | 39 | New Zealand Under-19s (2) v Pakistan Under-19s | Eden Park Outer Oval, Auckland | 1994/95 |
| 71-0 | 41* | New Zealand Young Cricketers (2) v Australia Under-19s | Cornwall Park, Auckland | 1986/87 |
| 66 | 16 | New Zealand Young Cricketers (1) v Australia Under-19s | Pukekura Park, New Plymouth | 1986/87 |
| 25-1 | 19* | New Zealand Young Cricketers (2) v England Young Cricketers | Eden Park, Auckland | 1990/91 |
| 23-1 | 17* | New Zealand Young Cricketers (2) v England Young Cricketers | McLean Park, Napier | 1990/91 |