| 144 | NCD Craig (117) & JC Patrick (46*) | Old Wykehamists v Old Merchant Taylors | Durrants Sports Ground, Croxley Green | 1970 |
| 126 | JWB Baldwin (57*) & TFJ Coldman (78) | Old Tonbridgians v Harrow Wanderers | Tonbridge School Ground, Tonbridge | 2024 |
| 118 | PJ Hulston (75) & SC Teesdale (87*) | Old Alleynians v Old Westminsters | Dulwich College Ground, Dulwich | 2005 |
| 115* | RA Rydon (97*) & RCA Garrett (49*) | Sherborne Pilgrims v Downside Wanderers | Downside School, Stratton-on-the-Fosse | 1992 |
| 113 | WCC Cooper (85) & DHJ Griggs (26) | Felsted Robins v Old Tonbridgians | Felsted School Ground, Dunmow | 2002 |
| 107 | NT Gadsby (62*) & DHJ Griggs (41) | Felsted Robins v Old Malvernians | Felsted School Ground, Dunmow | 2002 |
| 106 | M Barnes (64) & W Carr (49) | Radley Rangers v Old Cranleighans | Radley College Bigside Ground, Abingdon | 2025 |
| 104 | MWG Doggart (75) & WD Blacklidge (29) | Charterhouse Friars v Old Cliftonians | Charterhouse School, Godalming | 1993 |
| 104 | MJ Edmunds (35*) & DR Thompson (70) | Old Brightonians v Old Malvernians | Brighton College Ground, Brighton | 2004 |
| 98 | CR Trembath (92) & B Lockwood (50*) | Old Cliftonians v Old Blundellians | Blundell's School, Tiverton | 2001 |
| 93 | JM Wingfield-Digby (47*) & JMS Kennedy (55) | Sherborne Pilgrims v Bradfield Waifs | Bradfield College, Reading | 1970 |
| 93* | ERS Kelly (56*) & WAA Selfe (35*) | Sherborne Pilgrims v Repton Pilgrims | Repton School Ground, Repton | 2011 |
| 92* | JR Allbrook (65*) & MP Hickson (42*) | Old Tonbridgians v Old Malvernians | Malvern College Ground, Malvern | 1986 |
| 88 | SS Surridge (46*) & JM Cogan (28) | Old Westminsters v Downside Wanderers | Downside School, Stratton-on-the-Fosse | 1995 |
| 87* | DHM Dalrymple (54*) & HM Fox (44*) | Rugby Meteors v Old Wykehamists | Ridding Field, Winchester | 1968 |
| 85 | FJ Egleston (72) & HEA Axtell (55*) | Old Wykehamists v Old Malvernians | Malvern College Ground, Malvern | 2023 |
| 84* | DC Nash (98*) & SJ Varney (24*) | Old Malvernians v Eton Ramblers | Malvern College Ground, Malvern | 2008 |
| 82 | PC Bodkin (41) & RJ Winder (53*) | Bradfield Waifs v Old Merchant Taylors | Bradfield College, Reading | 1988 |
| 82 | CB Vickery (38) & AJ Easton (55) | Old Millfieldians v Old Wellingtonians | Wellington College, Crowthorne | 2022 |
| 81 | RJW Holdsworth (40) & DR Brown (51*) | Old Cliftonians v Harrow Wanderers | Clifton College Close Ground, Clifton | 1990 |
| 79* | AR Wingfield Digby (66*) & MA Floyer (22*) | Sherborne Pilgrims v Felsted Robins | Felsted School Ground, Dunmow | 1980 |
| 79 | RA MacDowel (48) & ADC West (53*) | Radley Rangers v Old Malvernians | Radley College Bigside Ground, Abingdon | 2000 |
| 79 | TH Clarke (32) & WM Lowe (37*) | Rugby Meteors v Bradfield Waifs | Rugby School Ground, Rugby | 2016 |
| 77 | JA Martin (52*) & AJ Cunningham (41) | Lancing Rovers v Rugby Meteors | Rugby School Ground, Rugby | 1991 |
| 77 | TNS Sheopuri (42) & JL Gray (38*) | Harrow Wanderers v Shrewsbury Saracens | Shrewsbury School, Shrewsbury | 2022 |
| 76 | M O'Halloran (55*) & JM Ward (42) | Repton Pilgrims v Harrow Wanderers | Repton School Ground, Repton | 2003 |
| 76 | JW Waddell (43) & OFB West (48) | Radley Rangers v Repton Pilgrims | Repton School Ground, Repton | 2005 |
| 76* | RD Nelson (37*) & GM Harper (38*) | Harrow Wanderers v Old Brightonians | Brighton College Ground, Brighton | 2013 |
| 73* | [unknown] & [unknown] | Old Merchant Taylors v Stowe Templars | Stowe School Ground, Stowe | 1969 |
| 72* | [unknown] & [unknown] | Old Malvernians v Oundle Rovers | Denis Compton Oval, Shenley | 2010 |
| 72 | TF Waine (54) & WV Whiteside-McFadden (26) | Old Cholmeleians v Uppingham Rovers | Highgate School Ground, Highgate | 2018 |
| 71 | [unknown] & [unknown] | Harrow Wanderers v Old Malvernians | Malvern College Ground, Malvern | 1982 |
| 71 | MJ Crump (33) & SDG Bugler (41) | Old Cranleighans v Old Wellingtonians | Wellington College, Crowthorne | 2022 |
| 70* | ND Hughes (112*) & RGA Gunn (38*) | Haileybury Hermits v Felsted Robins | Felsted School Ground, Dunmow | 1997 |
| 68 | BJE Kingsnorth (126*) & TB Cockcroft (32) | Old Wellingtonians v Stowe Templars | Stowe School Ground, Stowe | 2010 |
| 68 | SH Malik (48*) & RS Chatwal (41) | Old Whitgiftians v Old Wellingtonians | Wellington College, Crowthorne | 2015 |
| 68 | OR Batchelor (113) & A Mahtani (14) | Charterhouse Friars v Old Cheltonians | Charterhouse School, Godalming | 2024 |
| 66 | TWJ Bailey (39*) & AJT Willoughby (41) | Old Westminsters v Marlborough Blues | Marlborough College Ground, Marlborough | 1980 |
| 65 | MJ Smart (31) & K Ramanathan (51*) | Old Malvernians v Harrow Wanderers | Harrow School Cricket Ground, Harrow-on-the-Hill | 1996 |
| 62 | RMK Gracey (14) & CC Ellison (44) | Old Tonbridgians v Old Wellingtonians | Tonbridge School Ground, Tonbridge | 1985 |
| 61 | AM Wade (46*) & REM Williams (33) | Marlborough Blues v Uppingham Rovers | Radley College Bigside Ground, Abingdon | 2006 |
| 61 | N Rawal (105) & AJ Brand (19*) | Old Merchant Taylors v Sherborne Pilgrims | Sherborne School, Sherborne | 2021 |
| 59 | BL Hutton (32) & NA Buchanan (35*) | Radley Rangers v Old Wellingtonians | Wellington College, Crowthorne | 2013 |
| 59 | WPF Nolan (41*) & TFJ Coldman (20) | Old Tonbridgians v Uppingham Rovers | Tonbridge School Ground, Tonbridge | 2025 |
| 57 | [unknown] & [unknown] | St Edward's Martyrs v Harrow Wanderers | Harrow School Cricket Ground, Harrow-on-the-Hill | 1969 |
| 57 | PR Thackeray (94*) & JG Sears (21) | St Edward's Martyrs v Old Cholmeleians | Highgate School Ground, Highgate | 1983 |
| 57 | EW Nicol (47) & SF Roundell (9) | Harrow Wanderers v Old Brightonians | Brighton College Ground, Brighton | 2006 |
| 56 | RC Cheveley (32) & PR Goodwin (23) | Lancing Rovers v Old Alleynians | Dulwich College Ground, Dulwich | 1970 |
| 56 | DC Holliday (27*) & TR Elliott (27) | Oundle Rovers v Shrewsbury Saracens | Shrewsbury School, Shrewsbury | 1986 |
| 56 | AJ Pollock (45) & RT Tudor (23) | Shrewsbury Saracens v Oundle Rovers | Shrewsbury School, Shrewsbury | 1986 |
| 56* | JE Lamb (33*) & CE Wall (25*) | Repton Pilgrims v Old Tonbridgians | Old Deer Park, Richmond | 2009 |
| 56 | MPK Read (42) & BAG Higton (23*) | Marlborough Blues v Bradfield Waifs | Marlborough College Ground, Marlborough | 2022 |
| 55 | PJ Hulston (80) & NB Bennett (10*) | Old Alleynians v Charterhouse Friars | Dulwich College Ground, Dulwich | 1984 |
| 55 | WJ Rydon (35) & RA Rydon (22*) | Sherborne Pilgrims v Old Merchant Taylors | Sherborne School, Sherborne | 1990 |
| 55 | EJ Montague (70*) & AC Dobson (11) | St Edward's Martyrs v Marlborough Blues | St Edward's School Ground, Oxford | 1996 |
| 54* | HJW Wright (65*) & MJ Beckett (26*) | Repton Pilgrims v Sherborne Pilgrims | Repton School Ground, Repton | 1975 |
| 54 | DJR England (60) & CR Trembath (37) | Old Cliftonians v Old Whitgiftians | Clifton College Close Ground, Clifton | 2000 |
| 53* | [unknown] & [unknown] | Stowe Templars v Uppingham Rovers | Middle Field Pitch 1, Uppingham School | 1984 |
| 53 | JD Pilch (61*) & A Howorth (38) | Oundle Rovers v Uppingham Rovers | Middle Field Pitch 1, Uppingham School | 2008 |
| 53 | ECA Bruce (105*) & AG Reynolds (12) | Eton Ramblers v Old Whitgiftians | Whitgift School, Croydon | 2009 |
| 53 | JTE Essex (40) & JM Burridge (18) | Old Wykehamists v Old Eastbournians | Ridding Field, Winchester | 2017 |
| 53 | GHS Grace (43*) & ODB Powell (14) | Radley Rangers v Rugby Meteors | Rugby School Ground, Rugby | 2019 |
| 53* | AT Turner (45*) & BG Jacobs (19*) | St Edward's Martyrs v Old Cholmeleians | St Edward's School Ground, Oxford | 2023 |
| 52 | N Wisdom (54) & RJM Hughes (17*) | Charterhouse Friars v Old Cheltonians | Charterhouse School, Godalming | 1984 |
| 51 | SCB Withers (55) & AM Watts (34) | Old Brightonians v Marlborough Blues | Marlborough College Ground, Marlborough | 1986 |
| 51 | [unknown] & [unknown] | Old Wykehamists v Old Whitgiftians | Ridding Field, Winchester | 1998 |
| 51 | PRC Came (82) & WA Oscroft (19) | Bradfield Waifs v Old Malvernians | Bradfield College, Reading | 2000 |
| 51 | DRE O'Kelly (105*) & FWJ Mallory (19) | Old Amplefordians v Uppingham Rovers | Middle Field Pitch 1, Uppingham School | 2002 |
| 51 | SL Smart (52) & WF Waddell-Dudley (24) | Stowe Templars v Repton Pilgrims | Stowe School Ground, Stowe | 2009 |
| 50* | GCF Tufnell (50*) & DB Wainwright (15*) | Old Cholmeleians v Rugby Meteors | Highgate School Ground, Highgate | 1985 |
| 50* | AJM Johns (81*) & BA Rodgers (19*) | Lancing Rovers v Old Amplefordians | Ampleforth College, Ampleforth | 1994 |
| 50* | BD Thornycroft (16*) & SJG Doggart (30*) | Old Wykehamists v Oundle Rovers | Ridding Field, Winchester | 1995 |
| 50 | JE Corbett (34) & EN Lamb (17*) | Old Merchant Taylors v Old Cholmeleians | Highgate School Ground, Highgate | 2009 |
| 50 | EAR Bridgeman (41) & CE Wall (24) | Repton Pilgrims v Eton Ramblers | Upper Club, Eton College | 2009 |
| 50 | M Marland (26*) & GJ Bell (18) | Downside Wanderers v Haileybury Hermits | Downside School, Stratton-on-the-Fosse | 2010 |
| 50 | JN Baillie (24) & KH Patel (21) | Old Merchant Taylors v Uppingham Rovers | Upper Field, Uppingham School | 2013 |
| 50* | AC Cope (133*) & EA Johnson (24*) | Old Cranleighans v Old Tonbridgians | Tonbridge School Ground, Tonbridge | 2015 |
