| -1 | Harrow Wanderers v Old Cliftonians | Harrow School Cricket Ground, Harrow-on-the-Hill | 1974 |
| 147 | Uppingham Rovers v Harrow Wanderers | Upper Field, Uppingham School | 1997 |
| 161 | Harrow Wanderers v Old Tonbridgians | Harrow School Cricket Ground, Harrow-on-the-Hill | 1980 |
| 169 | Harrow Wanderers v Old Malvernians | Harrow School Cricket Ground, Harrow-on-the-Hill | 2015 |
| 186 | Harrow Wanderers v Eton Ramblers | Harrow School Cricket Ground, Harrow-on-the-Hill | 1987 |
| 193 | Charterhouse Friars v Harrow Wanderers | Charterhouse School, Godalming | 1981 |
| 194 | Radley Rangers v Harrow Wanderers | Radley College Bigside Ground, Abingdon | 2000 |
| 196 | Harrow Wanderers v Lancing Rovers | Harrow School Cricket Ground, Harrow-on-the-Hill | 1971 |
| 196 | Harrow Wanderers v Old Cheltonians | Harrow School Cricket Ground, Harrow-on-the-Hill | 1990 |
| 209 | Harrow Wanderers v Shrewsbury Saracens | Harrow School Cricket Ground, Harrow-on-the-Hill | 2001 |
| 211 | Harrow Wanderers v Old Cholmeleians | Harrow School Cricket Ground, Harrow-on-the-Hill | 2021 |
| 213 | St Edward's Martyrs v Harrow Wanderers | St Edward's School Ground, Oxford | 2012 |
| 221 | Harrow Wanderers v Old Wellingtonians | Harrow School Cricket Ground, Harrow-on-the-Hill | 1981 |
| 225 | Harrow Wanderers v Old Westminsters | Harrow School Cricket Ground, Harrow-on-the-Hill | 1980 |
| 225 | Harrow Wanderers v Downside Wanderers | Harrow School Cricket Ground, Harrow-on-the-Hill | 1982 |
| 237 | Harrow Wanderers v Old Wellingtonians | Harrow School Cricket Ground, Harrow-on-the-Hill | 1987 |
| 243 | Harrow Wanderers v Bradfield Waifs | Harrow School Cricket Ground, Harrow-on-the-Hill | 1975 |
| 246 | Haileybury Hermits v Harrow Wanderers | Haileybury College Ground, Hertford | 1991 |
| 250 | Harrow Wanderers v Old Malvernians | Vincent Square, Westminster | 1990 |
| 261 | Harrow Wanderers v Charterhouse Friars | Harrow School Cricket Ground, Harrow-on-the-Hill | 1996 |
| 263 | Shrewsbury Saracens v Harrow Wanderers | Shrewsbury School, Shrewsbury | 2003 |
| 265 | Old Cheltonians v Harrow Wanderers | College Ground, Cheltenham | 1971 |
| 265 | Old Wellingtonians v Harrow Wanderers | Wellington College, Crowthorne | 2025 |
| 272 | Harrow Wanderers v Old Malvernians | Burton's Court, Chelsea | 1968 |
| 277 | Rugby Meteors v Harrow Wanderers | Rugby School Ground, Rugby | 2012 |
| 279 | Harrow Wanderers v Old Cheltonians | Harrow School Cricket Ground, Harrow-on-the-Hill | 1995 |
| 281 | Harrow Wanderers v Old Cliftonians | Harrow School Cricket Ground, Harrow-on-the-Hill | 1998 |
| 282 | Harrow Wanderers v Old Amplefordians | Harrow School Cricket Ground, Harrow-on-the-Hill | 1969 |
| 283 | Harrow Wanderers v Old Merchant Taylors | Harrow School Cricket Ground, Harrow-on-the-Hill | 1991 |
| 288 | Harrow Wanderers v Old Blundellians | Harrow School Cricket Ground, Harrow-on-the-Hill | 1985 |
| 288 | Harrow Wanderers v Shrewsbury Saracens | Denis Compton Oval, Shenley | 2012 |
