| Extras | B | LB | W | NB | Pen |
| 101 | 15 | 7 | 17 | 62 | | v Cambridge University Centre of Cricketing Excellence | FP Fenner's Ground, Cambridge | 2002 | f46618 |
| 88 | 10 | 43 | 7 | 28 | | v Kent | St Lawrence Ground, Canterbury | 2009 | f51723 |
| 77 | 15 | 18 | 4 | 40 | | v Yorkshire | Headingley, Leeds | 2001 | f45966 |
| 76 | 32 | 12 | 4 | 28 | | v Kent | Woodbridge Road, Guildford | 2005 | f48740 |
| 76 | 17 | 37 | 6 | 16 | | v Durham | Woodbridge Road, Guildford | 2008 | f50889 |
| 75 | 16 | 22 | 3 | 34 | | v Gloucestershire | County Ground, Bristol | 2006 | f49515 |
| 74 | 17 | 21 | 4 | 32 | | v Derbyshire | The 3aaa County Ground, Derby | 2015 | f56443 |
| 73 | 14 | 35 | | 24 | | v Nottinghamshire | Trent Bridge, Nottingham | 1994 | f41192 |
| 71 | 13 | 25 | 6 | 27 | | v Middlesex | Kennington Oval, Kennington | 1985 | f35771 |
| 71 | 12 | 19 | 4 | 36 | | v Durham | Feethams Cricket Ground, Darlington | 1994 | f41166 |
| 71 | 23 | 32 | 10 | 6 | | v Leicestershire | Grace Road, Leicester | 2001 | f45927 |
| 71 | 13 | 25 | 7 | 26 | | v Leeds/Bradford Marylebone Cricket Club University | The Kia Oval, Kennington | 2012 | f53978 |
| 69 | 19 | 17 | 8 | 25 | | v Glamorgan | Sophia Gardens, Cardiff | 1975 | f30613 |
| 69 | 4 | 13 | 8 | 44 | | v Middlesex | The Foster's Oval, Kennington | 1994 | f41241 |
| 69 | 14 | 20 | 11 | 24 | | v Middlesex | The Brit Oval, Kennington | 2004 | f47988 |
| 69 | 23 | 23 | 3 | 20 | | v Derbyshire | County Ground, Derby | 2009 | f51576 |
| 67 | 17 | 26 | 4 | 20 | | v Kent | St Lawrence Ground, Canterbury | 2002 | f46693 |
| 66 | 6 | 28 | 2 | 30 | | v Northamptonshire | The Foster's Oval, Kennington | 1996 | f42570 |
| 66 | 11 | 16 | 16 | 18 | 5 | v Nottinghamshire | The Brit Oval, Kennington | 2005 | f48664 |
| 66 | 3 | 20 | 13 | 30 | | v Durham University Centre of Cricketing Excellence | The Brit Oval, Kennington | 2006 | f49336 |
| 66 | 14 | 13 | 3 | 36 | | v Yorkshire | North Marine Road, Scarborough | 2022 | f60922 |
| 65 | 1 | 16 | 11 | 37 | | v Worcestershire | The Foster's Oval, Kennington | 1994 | f41077 |
| 64 | 1 | 14 | 27 | 22 | | v Essex | Valentine's Park, Ilford | 2001 | f45892 |
| 64 | 16 | 13 | 5 | 30 | | v Nottinghamshire | Whitgift School, Croydon | 2003 | f47386 |
| 64 | 7 | 13 | | 44 | | v Sussex | County Ground, Hove | 2010 | f52389 |
| 64 | 28 | 26 | 9 | 1 | | v New Zealand A | The Kia Oval, Kennington | 2014 | f55746 |
| 63 | 2 | 17 | 6 | 38 | | v Leicestershire | Grace Road, Leicester | 1999 | f44439 |
| 63 | 11 | 16 | 4 | 32 | | v Gloucestershire | County Ground, Bristol | 2004 | f48005 |
| 63 | 19 | 23 | 17 | 4 | | v Nottinghamshire | The Kia Oval, Kennington | 2025 | f63073 |
| 62 | 2 | 11 | 3 | 46 | | v Gloucestershire | Archdeacon Meadow, Gloucester | 1994 | f41112 |
| 62 | 13 | 24 | 5 | 20 | | v Sussex | Cricket Field Road, Horsham | 1995 | f41792 |
| 62 | 9 | 33 | 10 | 10 | | v Middlesex | Woodbridge Road, Guildford | 1998 | f43787 |
| 62 | 17 | 18 | 13 | 14 | | v Kent | The Brit Oval, Kennington | 2008 | f50866 |
| 61 | 18 | 31 | 4 | 8 | | v Kent | St Lawrence Ground, Canterbury | 1976 | f31213 |
| 60 | 21 | 17 | 8 | 14 | | v Yorkshire | North Marine Road, Scarborough | 2000 | f45259 |
| 60 | 20 | 21 | 9 | 10 | | v Derbyshire | County Ground, Derby | 2006 | f49525 |
| 60 | 8 | 6 | 6 | 40 | | v Derbyshire | County Ground, Derby | 2011 | f53255 |
| 60 | 18 | 28 | | 14 | | v Northamptonshire | County Ground, Northampton | 2011 | f53344 |
