| MD | Players | Nationality | DOB | A(D) |
|---|---|---|---|---|
| 14-Oct-2007 | Ben Youngs | England | 05-Sep-1989 | 18(39) |
| 14-Sep-1996 | Lewis Moody | England | 12-Jun-1978 | 18(95) |
| 18-Nov-2000 | Ollie Smith | England | 14-Aug-1982 | 18(97) |
| 03-Sep-2011 | George Ford | England | 16-Mar-1993 | 18(171) |
| 21-Sep-2003 | Tom Ryder | Scotland | 21-Feb-1985 | 18(212) |
| 21-Feb-2020 | Jack van Poortvliet | England | 15-May-2001 | 18(282) |
| 30-Oct-1996 | Leon Lloyd | England | 22-Sep-1977 | 19(38) |
| 16-Oct-1999 | James Grindal | England | 18-Aug-1980 | 19(58) |
| 02-Apr-2016 | William Evans | England | 28-Jan-1997 | 19(64) |
| 22-Aug-2020 | George Martin | England | 18-Jun-2001 | 19(65) |
| 26-Apr-2003 | Will Skinner | England | 08-Feb-1984 | 19(77) |
| 06-Nov-2004 | Tom Varndell | England | 16-Aug-1985 | 19(82) |
| 09-Sep-2020 | Daniel Kelly | England | 16-Jun-2001 | 19(85) |
| 02-Sep-2001 | Harry Ellis | England | 17-May-1982 | 19(108) |
| 31-Oct-2009 | Callum Green | England | 15-Jul-1990 | 19(108) |
| 11-Sep-1999 | Andy Goode | England | 03-Apr-1980 | 19(160) |
| 19-Nov-2010 | Manu Tuilagi | England | 18-May-1991 | 19(185) |
| 25-Sep-2004 | Ross Broadfoot | England | 08-Mar-1985 | 19(201) |
| 26-Aug-2020 | Freddie Steward | England | 05-Dec-2000 | 19(264) |
| 11-Oct-2003 | Luke Myring | England | 20-Dec-1983 | 19(295) |
| 14-Feb-1998 | Geordan Murphy | Ireland | 19-Apr-1978 | 19(301) |
| 21-Nov-2004 | Matt Cornwell | England | 16-Jan-1985 | 19(309) |
| 23-Oct-1999 | Adam Balding | England | 07-Dec-1979 | 19(320) |
| 08-Mar-2019 | Joseph Heyes | England | 13-Apr-1999 | 19(329) |
| 26-Dec-2006 | Tom Youngs | England | 28-Jan-1987 | 19(332) |
| 06-Sep-2000 | Louis Deacon | England | 07-Oct-1980 | 19(334) |
| 30-Aug-2020 | Oliver Chessum | England | 06-Sep-2000 | 19(358) |
| 12-Nov-2005 | Tom Croft | England | 07-Nov-1985 | 20(5) |
| 25-Nov-2016 | George Worth | England | 08-Oct-1996 | 20(48) |
| 16-Apr-1997 | Nmandi Ezulike | * | 16-Feb-1977 | 20(59) |
| 30-Aug-1997 | Michael Horak | England | 03-Jun-1977 | 20(88) |
| 31-Aug-2002 | Dan Hipkiss | England | 04-Jun-1982 | 20(88) |
| 16-Sep-2006 | Jordan Crane | England | 03-Jun-1986 | 20(105) |
| 19-Apr-2003 | Peter Cook | England | 25-Dec-1982 | 20(115) |
| 05-Oct-1996 | Neil Fletcher | England | 04-Jun-1976 | 20(123) |
| 23-Oct-1999 | Peter Short | England | 20-Jun-1979 | 20(125) |
| 30-Sep-2018 | Ben White | Scotland | 27-May-1998 | 20(126) |
| 21-Dec-2013 | Pablo Matera | Argentina | 18-Jul-1993 | 20(156) |
| 22-Sep-2018 | Jordan Olowofela | England | 07-Apr-1998 | 20(168) |
| 19-Oct-2019 | Tommy Reffell | Wales | 27-Apr-1999 | 20(175) |
| 19-Oct-2019 | Thomas Hardwick | England | 24-Mar-1999 | 20(209) |
| 04-May-1998 | Tom Barlow | England | 28-Sep-1977 | 20(218) |
| 28-Jan-2023 | Sam Edwards | England | 14-Jun-2002 | 20(228) |
| 15-Apr-2008 | Ollie Dodge | England | 27-Aug-1987 | 20(232) |
| 09-Sep-2020 | Cameron Henderson | Scotland | 13-Jan-2000 | 20(240) |
| 31-Aug-1996 | Matt Jones | England | 03-Jan-1976 | 20(241) |
| 22-Aug-2020 | Thom Smith | England | 02-Dec-1999 | 20(264) |
| 16-Nov-2014 | Harry Thacker | England | 18-Feb-1994 | 20(271) |
| 27-Dec-2002 | John Holtby | England | 27-Mar-1982 | 20(275) |
| 19-Feb-2016 | Oliver Bryant | England | 08-May-1995 | 20(287) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).