| Inns | HS |
| 282 | 46* | Finchley v Hampstead | Lymington Road, Hampstead | 2018 |
| 270-9 | 43 | Hampstead v Twickenham | Milverton Road, Willesden | 2013 |
| 269-8d | 45 | Richmond v Finchley | Arden Field, Finchley | 2005 |
| 269-9 | unknown | Ealing v Finchley | Arden Field, Finchley | 2007 |
| 267-8 | 0 | Eastcote v Finchley | Arden Field, Finchley | 2007 |
| 267-8 | 47 | North Middlesex v Stanmore | Stanmore Common, Stanmore | 2017 |
| 263 | 40 | Brondesbury v Highgate | Harman Drive, Brondesbury | 2018 |
| 261 | 49 | Brondesbury v Hampstead | Harman Drive, Brondesbury | 2014 |
| 258 | 38 | Teddington v Shepherds Bush | The New Ground, Shepherds Bush | 2020 |
| 253-7 | 47 | Stanmore v Teddington | Stanmore Common, Stanmore | 2004 |
| 249-7 | 42 | Richmond v Stanmore | Stanmore Common, Stanmore | 2022 |
| 247-9 | 46 | Richmond v Brondesbury | Old Deer Park, Richmond | 2011 |
| 246-6 | 49 | Hampstead v Brondesbury | Harman Drive, Brondesbury | 2008 |
| 246-7d | 40 | Ealing v Southgate | John Walker's Ground, Southgate | 2012 |
| 246 | 44 | Hampstead v Ealing | Lymington Road, Hampstead | 2022 |
| 245 | 46 | Finchley v North Middlesex | North Middlesex Cricket Club Ground, Crouch End | 2018 |
| 245-7 | 49 | Shepherds Bush v Hampstead | The New Ground, Shepherds Bush | 2019 |
| 245-9 | 41 | North Middlesex v Twickenham | North Middlesex Cricket Club Ground, Crouch End | 2023 |
| 240-8 | 42 | Hampstead v Twickenham | Twickenham Green, Twickenham | 2016 |
| 239-9 | 42 | North Middlesex v Hampstead | Lymington Road, Hampstead | 2015 |
| 239 | 41* | Crouch End v Teddington | The Calthorpe Ground, Crouch End | 2023 |
| 237-7 | 49* | Ealing v Richmond | Old Deer Park, Richmond | 2006 |
| 237 | 45 | Eastcote v Finchley | Arden Field, Finchley | 2010 |
| 236 | 45 | Eastcote v Hampstead | Haydon Hall, Eastcote | 2007 |
| 236 | 45 | Southgate v Finchley | John Walker's Ground, Southgate | 2008 |
| 236-9 | 46 | North Middlesex v Ealing | North Middlesex Cricket Club Ground, Crouch End | 2017 |
| 236 | 43 | Harrow St Mary's v Richmond | Old Deer Park, Richmond | 2025 |
| 235-8 | 47 | Twickenham v Stanmore | Stanmore Common, Stanmore | 2015 |
| 234-9 | 28 | Ealing v Hornsey | Corfton Road, Ealing | 2022 |
| 233-8d | 40 | Winchmore Hill v Hampstead | The Paulin Ground, Winchmore Hill | 2006 |
| 231 | 47 | Brondesbury v Teddington | Teddington Cricket Club Ground, Bushy Park, Teddington | 2006 |
| 231-7 | 48* | Finchley v Teddington | Teddington Cricket Club Ground, Bushy Park, Teddington | 2018 |
| 231 | 43* | Twickenham v Richmond | Twickenham Green, Twickenham | 2019 |
| 230-9 | 45 | Finchley v Hampstead | Lymington Road, Hampstead | 2008 |
| 229-9 | 48 | Finchley v Hampstead | Lymington Road, Hampstead | 2004 |
| 229 | 44 | Teddington v Hampstead | Teddington Cricket Club Ground, Bushy Park, Teddington | 2019 |
| 229 | 47 | Ealing v Stanmore | Stanmore Common, Stanmore | 2022 |
| 229 | 41 | Hampstead v Hornsey | Lymington Road, Hampstead | 2022 |
| 229 | 49 | Brondesbury v Teddington | Harman Drive, Brondesbury | 2024 |
| 229 | 38 | Ealing v Crouch End | Corfton Road, Ealing | 2025 |
| 228 | 42 | Brondesbury v Teddington | Teddington Cricket Club Ground, Bushy Park, Teddington | 2007 |
| 228-9 | 46 | Southgate v Stanmore | John Walker's Ground, Southgate | 2015 |
| 227-9 | 46 | Stanmore v Teddington | Stanmore Common, Stanmore | 2009 |
| 226 | 39 | Shepherds Bush v Winchmore Hill | The New Ground, Shepherds Bush | 2009 |
| 225-7 | 39* | Stanmore v Crouch End | The Calthorpe Ground, Crouch End | 2025 |
| 224 | 48 | Shepherds Bush v Teddington | Teddington Cricket Club Ground, Bushy Park, Teddington | 2022 |
| 223 | 40 | Hampstead v Ealing | Lymington Road, Hampstead | 2015 |
| 223-9 | 46 | North Middlesex v Teddington | Teddington Cricket Club Ground, Bushy Park, Teddington | 2018 |
| 223 | 49 | Hampstead v Ealing | Corfton Road, Ealing | 2021 |
| 223 | 48 | Harrow St Mary's v Shepherds Bush | The New Ground, Shepherds Bush | 2025 |
| 221-9d | 40 | Richmond v Brondesbury | Old Deer Park, Richmond | 2007 |
| 220-6 | 46 | Ealing v Richmond | Old Deer Park, Richmond | 2007 |
| 220 | 45 | Hampstead v Richmond | Old Deer Park, Richmond | 2013 |
| 219 | 42 | Richmond v Ealing | Old Deer Park, Richmond | 2007 |
| 219-8 | 46 | Stanmore v Eastcote | Haydon Hall, Eastcote | 2013 |
| 219 | 48 | Eastcote v Finchley | Arden Field, Finchley | 2013 |
| 219-9 | 47* | Twickenham v Hampstead | Twickenham Green, Twickenham | 2015 |
| 217 | 43 | Hampstead v North Middlesex | Lymington Road, Hampstead | 2017 |
| 217-9 | 37 | Twickenham v Shepherds Bush | Twickenham Green, Twickenham | 2023 |
| 216 | 42 | Teddington v Stanmore | Stanmore Common, Stanmore | 2002 |
| 216-8 | 45 | North Middlesex v Teddington | Teddington Cricket Club Ground, Bushy Park, Teddington | 2025 |
| 215 | 46 | Finchley v Teddington | Arden Field, Finchley | 2007 |
| 215-5d | 0* | North Middlesex v Richmond | North Middlesex Cricket Club Ground, Crouch End | 2014 |
| 215 | 49* | Shepherds Bush v Stanmore | The New Ground, Shepherds Bush | 2022 |
| 213 | 47 | North Middlesex v Teddington | Teddington Cricket Club Ground, Bushy Park, Teddington | 2022 |
| 212 | 48 | Finchley v Ealing | Corfton Road, Ealing | 2021 |
| 212-8 | 49 | Hornsey v North Middlesex | North Middlesex Cricket Club Ground, Crouch End | 2025 |
| 211-9 | 43* | Brondesbury v Eastcote | Harman Drive, Brondesbury | 2002 |
| 211 | 40 | Ealing v Shepherds Bush | Corfton Road, Ealing | 2018 |
| 211-8 | 43 | Stanmore v Twickenham | Stanmore Common, Stanmore | 2019 |
| 211-6 | 46 | Shepherds Bush v North Middlesex | The New Ground, Shepherds Bush | 2021 |
| 211 | 41 | Ealing v North Middlesex | North Middlesex Cricket Club Ground, Crouch End | 2022 |
| 211 | 47 | Hornsey v Ealing | Tivoli Road, Hornsey | 2025 |
| 210-7 | 45 | Hampstead v Brondesbury | Harman Drive, Brondesbury | 2009 |
| 210-8 | 43 | Richmond v Brondesbury | Harman Drive, Brondesbury | 2009 |
| 210-9 | 39 | Teddington v Ealing | Teddington Cricket Club Ground, Bushy Park, Teddington | 2010 |
| 210-7 | 49* | North Middlesex v Finchley | Arden Field, Finchley | 2015 |
| 209-8 | 40 | Teddington v Winchmore Hill | Teddington Cricket Club Ground, Bushy Park, Teddington | 2005 |
| 209-9 | 49 | Richmond v Stanmore | Old Deer Park, Richmond | 2006 |
| 209 | 47 | Finchley v North Middlesex | Arden Field, Finchley | 2015 |
| 209-7 | 45* | Teddington v Hampstead | Teddington Cricket Club Ground, Bushy Park, Teddington | 2021 |
| 209-9 | 45 | Finchley v Crouch End | The Calthorpe Ground, Crouch End | 2023 |
| 208 | 36 | Crouch End v Brondesbury | Harman Drive, Brondesbury | 2023 |
| 207-8 | 49 | Twickenham v North Middlesex | Twickenham Green, Twickenham | 2021 |
| 207 | 37 | Twickenham v Brondesbury | Twickenham Green, Twickenham | 2023 |
| 206 | 37 | Finchley v Eastcote | Haydon Hall, Eastcote | 2005 |
| 206-9 | 49 | Hampstead v Stanmore | Lymington Road, Hampstead | 2005 |
| 206-7 | 49* | Stanmore v Uxbridge | Stanmore Common, Stanmore | 2006 |
| 205-9 | 41 | Southgate v North Middlesex | John Walker's Ground, Southgate | 2015 |
| 205 | 39 | Twickenham v North Middlesex | Twickenham Green, Twickenham | 2018 |
| 204 | 44 | Southgate v Brondesbury | Harman Drive, Brondesbury | 2004 |
| 204-9 | 34* | North Middlesex v Southgate | North Middlesex Cricket Club Ground, Crouch End | 2016 |
| 204 | 45 | Shepherds Bush v Highgate | Shepherds Cot, Crouch End | 2018 |
| 204-7 | 47 | Shepherds Bush v Hampstead | The New Ground, Shepherds Bush | 2021 |
| 203 | 45 | Richmond v Brentham | Old Deer Park, Richmond | 2006 |
| 203-9 | 46 | Uxbridge v Brondesbury | Harman Drive, Brondesbury | 2006 |
| 203-9 | 40 | Richmond v Eastcote | Old Deer Park, Richmond | 2007 |
| 203-6 | 48 | Ealing v Teddington | Teddington Cricket Club Ground, Bushy Park, Teddington | 2009 |
| 203-9 | 46 | Brondesbury v Teddington | Harman Drive, Brondesbury | 2010 |
| 201-9 | 40 | Teddington v Brondesbury | Harman Drive, Brondesbury | 2004 |
| 201 | 34 | Teddington v Brondesbury | Teddington Cricket Club Ground, Bushy Park, Teddington | 2006 |
| 201-8 | 39 | Teddington v Eastcote | Haydon Hall, Eastcote | 2009 |
| 201 | 42 | Twickenham v Eastcote | Twickenham Green, Twickenham | 2011 |
| 201 | 46 | Shepherds Bush v Finchley | The New Ground, Shepherds Bush | 2017 |
| 201 | 45 | Richmond v Teddington | Teddington Cricket Club Ground, Bushy Park, Teddington | 2021 |
| 201 | 47 | Stanmore v North Middlesex | North Middlesex Cricket Club Ground, Crouch End | 2024 |
| 200-5 | 38* | Richmond v Uxbridge | Old Deer Park, Richmond | 2006 |
| 200 | 43 | Teddington v Hampstead | Lymington Road, Hampstead | 2010 |
| 200 | 38 | Eastcote v Teddington | Teddington Cricket Club Ground, Bushy Park, Teddington | 2012 |
| 200-9 | 37* | Twickenham v Teddington | Teddington Cricket Club Ground, Bushy Park, Teddington | 2013 |
| 200 | 43 | Ealing v Winchmore Hill | The Paulin Ground, Winchmore Hill | 2013 |
| 200-8 | 46 | North Middlesex v Hampstead | Lymington Road, Hampstead | 2014 |
| 200 | 42 | Finchley v Twickenham | Twickenham Green, Twickenham | 2014 |
| 200 | 46 | North Middlesex v Finchley | North Middlesex Cricket Club Ground, Crouch End | 2017 |
| 200-8 | 43 | Ealing v Twickenham | Twickenham Green, Twickenham | 2018 |
| 200 | 47 | North Middlesex v Stanmore | Stanmore Common, Stanmore | 2019 |
