| Inns | HS |
| 265 | 47 | Scotland Under-19s (1) v United Arab Emirates Under-19s | Longhirst Hall Ground, Longhirst | 2009 |
| 250-6 | 49* | Scotland Under-19s v Maharana Pratap Police | Abhimanyu Cricket Academy Ground, Dehra Dun | 2010/11 |
| 239-8 | 46 | Scotland Under-19s v Clydesdale | Titwood, Glasgow | 2009 |
| 235-9 | 48 | Scotland Under-19s v Carlton | Grange Loan, Edinburgh | 2009 |
| 234 | 44 | Scotland Under-19s v Namibia Under-19s | New Williamfield, Stirling | 2017 |
| 233-9 | 47 | Scotland Under-19s v Marylebone Cricket Club | Lochlands Park, Arbroath | 2003 |
| 231-9 | 41 | Scotland Under-19s v South Africa Under-17s | Ampleforth College, Ampleforth | 1993 |
| 229 | 41 | Scotland Under-19s v Marylebone Cricket Club | Lochlands Park, Arbroath | 2008 |
| 228-8d | 40 | Scotland Under-19s v Scottish Wayfarers | Fettes College, Edinburgh | 1995 |
| 224-7 | 37 | Scotland Under-19s v Scottish Universities | Bothwell Castle, Uddingston | 2004 |
| 223 | 43 | Scotland Under-19s v Bermuda Under-19s | National Stadium, Hamilton | 1997 |
| 220-7 | 39 | Scotland Under-19s v Ireland Under-19s | Myreside, Edinburgh | 2001 |
| 220 | 44 | Scotland Under-19s v Issipathana MV School | Maris Stella College Ground, Negombo | 2005/06 |
| 218 | 32 | Scotland Academy v Uddingston | Bothwell Castle, Uddingston | 2010 |
| 216-9 | 37 | Scotland Under-15s v Cumbria Under-15s | Vicarage Close, Appleby | 2013 |
| 215 | 36 | Scotland Under-19s v Durham University | The Racecourse, Durham | 2002 |
| 215 | 48 | Scotland Under-17s (1) v Cumbria Under-17s | Glenpark, Greenock | 2008 |
| 212 | 35* | Scotland Under-19s v Scotland A | Bothwell Castle, Uddingston | 2009 |
| 212-9 | 42 | Scotland Under-17s v Netherlands Under-17s | Myreside, Edinburgh | 2010 |
| 212 | 47 | Scotland Under-19s v Sri Lanka Cricket Development XI | Moors Sports Club Ground, Colombo | 2012/13 |
| 211-9 | 49 | Scotland Under-19s v Northern Universities | Ashbrooke, Sunderland | 2009 |
| 210 | 37 | Scotland Under-19s v Afghanistan Under-19s | Allan Border Field, Brisbane | 2012 |
| 209 | 48 | Scotland Under-17s v Netherlands Under-17s | Raeburn Place, Edinburgh | 2010 |
| 208 | 33 | Scotland Under-19s v Jersey Under-19s | Civil Service Cricket Club, Stormont, Belfast | 2010 |
| 208-9 | 41* | Scotland Under-19s v Jersey Under-19s | Grainville, St Saviour | 2015 |
| 206-5 | 47 | Scotland Under-19s v Scottish Universities | Goldenacre, Edinburgh | 2001 |
| 206-9 | 49 | Scotland Under-17s v English Schools Cricket Association Under-15s | Loughborough | 2004 |
| 205-7d | 49 | Scottish Cricket Union Colts (1) v English Schools Cricket Association | Doo'cot Park No 1, Perth | 1971 |
| 205 | 34 | Scotland Under-19s v Delhi Under-19s | Goldenacre, Edinburgh | 2009 |
| 203 | 44 | Scotland Under-19s v South Africa Under-17s | Ampleforth College, Ampleforth | 1993 |
| 203-8 | 42 | Scotland Under-19s v St Martin's School | McGregor Field, Johannesburg | 1997/98 |
| 202 | 45 | Scotland Under-19s v Kenya Under-19s | Soweto Cricket Oval, Soweto | 1997/98 |
| 201 | 40 | Scotland Under-19s v Durham University | The Racecourse, Durham | 2003 |
| 201 | 46 | Scotland Under-19s v Abhimanya Cricket Association | Abhimanyu Cricket Academy Ground, Dehra Dun | 2010/11 |