| 270 runs | Hertfordshire Under-15s v Huntingdonshire Under-15s | Bishop's Stortford College Ground, Bishop's Stortford | u15cc1930 |
| 226 runs | Norfolk Under-15s v Huntingdonshire Under-15s | Pages Lane, Saham Toney | u15cc1977 |
| 207 runs | Devon Under-15s v Isle of Wight Under-15s | The Maer Ground, Exmouth | u15cc1973 |
| 173 runs | Norfolk Under-15s v Suffolk Under-15s | not known | u15cc1937 |
| 171 runs | Shropshire Under-15s v Herefordshire Under-15s | The Avenue, Uppington | u15cc1924 |
| 170 runs | Hampshire Under-15s v Isle of Wight Under-15s | Newclose County Cricket Ground, Newport | u15cc1987 |
| 170 runs | Worcestershire Under-15s v Herefordshire Under-15s | Hereford Cathedral School Wyeside Playing Fields, Hereford | u15cc2061 |
| 168 runs | Oxfordshire Under-15s v Isle of Wight Under-15s | Ryde School Ground, Ryde | u15cc1931 |
| 161 runs | Warwickshire Under-15s v Wales Under-15s | Grove Ground, Market Drayton | u15cc2013 |
| 160 runs | Kent Under-15s v Essex Under-15s | not known | u15cc2004 |
| 159 runs | Gloucestershire Under-15s v Cornwall Under-15s | Wheal Eliza, Bethel, St Austell | u15cc2020 |
| 152 runs | Essex Under-15s v Sussex Under-15s | Dick Patmore Memorial Ground, Wickford | u15cc2039 |
| 148 runs | Warwickshire Under-15s v Leicestershire and Rutland Under-15s | Ratcliffe College, Cossington | u15cc2025 |
| 146 runs | Durham Under-15s v Cumbria Under-15s | not known | u15cc1994 |
| 134 runs | Gloucestershire Under-15s v Cornwall Under-15s | Three Ashes Lane, Newent | u15cc1950 |
| 133 runs | Lancashire Under-15s v Derbyshire Under-15s | Billinge Road, Highfield | u15cc2005 |
| 130 runs | Wales Under-15s v Northamptonshire Under-15s | Birchfield Road East, Northampton | u15cc2007 |
| 128 runs | Buckinghamshire Under-15s v Wales Under-15s | not known | u15cc2018 |
| 127 runs | Warwickshire Under-15s v England Academy Women | The John Fretwell Sporting Complex, Nettleworth | u15cc1944 |
| 127 runs | Cumbria Under-15s v Lincolnshire Under-15s | not known | u15cc2017 |
| 113 runs | Devon Under-15s v Hampshire Under-15s | Southern Gardens, Totton | u15cc2024 |
| 112 runs | Yorkshire Under-15s v Derbyshire Under-15s | not known | u15cc1970 |
| 105 runs | Leicestershire and Rutland Under-15s v Northamptonshire Under-15s | Birchfield Road East, Northampton | u15cc1969 |
| 101 runs | Devon Under-15s v Dorset Under-15s | Queens Park, Paignton | u15cc2002 |
