1976 | RND 1 v Berkhamsted | Riddiford & Stockton WON 2&1 |
| RND 2 v Hurst | Riddiford & Stockton WON 4&3 |
| RND 3 v Bradfield | Riddiford & Stockton WON 3&2 |
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1977 | RND 1 v Fettes | Riddiford & Stockton WON 4&3 |
| RND 2 v Uppingham | Riddiford & Stockton LOST 2&1 |
| RND 3 v Marlborough | Riddiford & Stockton WON 4&3 |
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1978 | RND 1 v Eastbourne | Riddiford & Stockton LOST 5&4 |
| RND 2 v Sherborne | Riddiford & Stockton LOST 2d |
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1979 | DNP | |
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1980 | RND 1 v Haileybury | Riddiford & Stockton WON 3&2 |
| RND 2 v Marlborough | Riddiford & Stockton LOST 6&5 |
| RND 3 v Harrow | Riddiford & Stockton LOST 1d |
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1981 | RND 1 v Felsted | Riddiford & Mote WON 2up |
| RND 2 v Bedford | Riddiford & Mote WON 6&4 |
| RND 3 v Fettes | Riddiford & Mote LOST 2&1 |
| RND 4 v Rossall | Riddiford & Mote LOST 19th |
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1982 | RND 1 v Ampleforth | Riddiford & Kilpatrick LOST 1d |
| RND 2 v Charterhouse | Riddiford & Kilpatrick LOST 4&3 |
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1983 | RND 1 v Shrewsbury | Riddiford & Mote WON 2&1 |
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1984 | RND 1 v Winchester | Riddiford & Kilpatrick WON 2&1 |
| RND 2 v Charterhouse | Riddiford & Kilpatrick LOST 6&5 |
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1985 | DNP | |
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1986 | RND 1 v Uppingham | Riddiford & Brazell LOST 1d |
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1987 | RND 1 v Fettes | Riddiford & Brazell WON 4&3 |
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1988 | RND 1 v Eastbourne | Riddiford & Kilpatrick WON 2up |
| RND 2 v Liverpool | Riddiford & Kilpatrick WON 2up |
| RND 3 v Edinburgh | Riddiford & Kilpatrick LOST 3&2 |
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1989 | RND 1 v Merch Tayl | Riddiford & Paul WON 4&3 |
| RND 2 v Charterhouse | Riddiford & Paul LOST 2&1 |
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1990 | RND 1v Wellington | Riddiford & Elsdon Dew LOST 1d |
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1991 | RND 1 v Marlborough | Riddiford & Burridge LOST 2&1 |
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1992 | RND 1 v Radley | Riddiford & Mote WON 19th |
| RND 2 v Tonbridge | Riddiford & Mote LOST 5&4 |
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1993 | RND 1 v Harrow | Riddiford & Hansford LOST 4&3 |
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1994 | RND 1 v Downside | Riddiford & Paul LOST 3&2 |
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1995 | RND 1 v Merch Tayl | Riddiford & Burridge WON 5&4 |
| RND 2 v Charterhouse | Riddiford & Burridge LOST 6&5 |
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1996 | RND 1 v Loretto | Riddiford & Hansford WON 2&1 |
| RND 2 v Forest | Riddiford & Hansford WON 4&3 |
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1997 | RND 1 v Wrekin | Riddiford & Sweetland WON 4&3 |
| RND 2 v Downside | Riddiford & Sweetland WON 5&4 |
| RND 3 v Harrow | Riddiford & Sweetland LOST 19th |
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1998 | RND 1 v City of London | Riddiford & Cronk WON 5&3 |
| RND 2 v Fettes | Riddiford & Rogers WON 2up |
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1999 | RND 1 v Winchester | Riddiford & Ferguson-Jones WON 5&4 |
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2000 | RND 1 v Highgate | Riddiford & Ferguson-Jones WON 1up |
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2001 | RND 1 v Charterhouse | Riddiford & Ferguson-Jones WON 19th |
| RND 2 v Ampleforth | Riddiford & Ferguson-Jones WON 4&3 |
| RND 3 v Merchiston | M Riddiford & M Ferguson Jones WON 2up |
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2002 | RND 1 v Haileybury | Riddiford & Ferguson-Jones LOST 1d |
| RND 2 v Rugby | Riddiford & Ferguson-Jones WON 3&2 |
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2003 | RND 1 v Malvern | Riddiford & Ferguson-Jones LOST 1d |
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2004 | RND 1 v Clifton | Riddiford & Hansford WON 2&1 |
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2005 | RND 1 v The Leys | A Whitty & M Riddiford HALVED |
| RND 2 v Tonbridge | A Whitty & M Riddiford LOST 1d |
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2006 | RND 1 v Rossall | Riddiford & Connelly LOST 4&3 |
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2007 | RND 1 v Eastbourne | Riddiford & Connelly HALVED |
| RND 2 v Tonbridge | Riddiford & Connelly LOST 3&2 |
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2008 | RND 1 v Merchiston | Riddiford & Connelly LOST 5&4 |
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2009 | RND 1 v Eton | Riddiford & Williams R LOST 4&3 |
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2010 | RND 1 v Rugby | Riddiford & Parry HALVED |
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2011 | RND 1 v Canford | Riddiford & Pickford HALVED |
| RND 2 v Bradfield | Riddiford & Pickford LOST 2&1 |
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2012 | RND 1 v Highgate | Riddiford & Pickford LOST 2&1 |
| RND 2 v Watsons | Riddiford & Pickford LOST 1d |