| MD | Players | Nationality | DOB | A(D) |
|---|---|---|---|---|
| 05-May-2018 | Schalk Brits | South Africa | 16-May-1981 | 36(354) |
| 05-May-2018 | Schalk Burger | South Africa | 13-Apr-1983 | 35(23) |
| 05-May-2018 | Richard Wigglesworth | England | 09-Jun-1983 | 34(331) |
| 15-Apr-2018 | Chris Wyles | United States | 13-Sep-1983 | 34(215) |
| 05-May-2018 | Marcelo Bosch | Argentina | 07-Jan-1984 | 34(119) |
| 15-Apr-2018 | Dominic Day | Wales | 22-Aug-1985 | 32(236) |
| 07-Apr-2018 | Blair Cowan | Scotland | 21-Apr-1986 | 31(352) |
| 05-May-2018 | Bradley Barritt | England | 07-Aug-1986 | 31(271) |
| 05-May-2018 | Michael Rhodes | South Africa | 19-Dec-1987 | 30(138) |
| 05-May-2018 | Juan Figallo | Argentina | 25-Mar-1988 | 30(41) |
| 05-May-2018 | Alex Goode | England | 07-May-1988 | 29(363) |
| 05-May-2018 | Sean Maitland | Scotland | 14-Sep-1988 | 29(233) |
| 25-Feb-2018 | Calum Clark | England | 10-Jun-1989 | 28(260) |
| 29-Apr-2018 | Duncan Taylor | Scotland | 05-Sep-1989 | 28(236) |
| 05-May-2018 | Richard Barrington | England | 24-Sep-1989 | 28(223) |
| 29-Apr-2018 | George Kruis | England | 22-Feb-1990 | 28(66) |
| 29-Apr-2018 | Vincent Koch | South Africa | 13-Mar-1990 | 28(47) |
| 29-Apr-2018 | Jamie George | England | 20-Oct-1990 | 27(191) |
| 05-May-2018 | Jackson Wray | England | 10-Nov-1990 | 27(176) |
| 29-Apr-2018 | Makovina Vunipola | England | 13-Jan-1991 | 27(106) |
| 05-May-2018 | Liam Williams | Wales | 09-Apr-1991 | 27(26) |
| 05-May-2018 | Owen Farrell | England | 21-Sep-1991 | 26(227) |
| 29-Apr-2018 | Ben Spencer | England | 13-Jul-1992 | 25(290) |
| 10-Feb-2018 | Will Skelton | Australia | 03-May-1992 | 25(283) |
| 07-Jan-2018 | Billy Vunipola | England | 03-Nov-1992 | 25(65) |
| 15-Apr-2018 | Alex Lozowski | England | 30-Jun-1993 | 24(289) |
| 16-Feb-2018 | Christopher Tolofua | France | 31-Dec-1993 | 24(47) |
| 05-May-2018 | Maro Itoje | England | 28-Oct-1994 | 23(189) |
| 04-Mar-2018 | Nathan Earle | England | 25-Sep-1994 | 23(160) |
| 29-Sep-2017 | Hayden Thompson-Stringer | England | 29-Dec-1994 | 22(275) |
| 17-Nov-2017 | Nick Tompkins | Wales | 16-Feb-1995 | 22(275) |
| 26-Nov-2017 | Max Malins | England | 07-Jan-1997 | 20(323) |
| 04-Mar-2018 | Benjamin Earl | England | 07-Jan-1998 | 20(56) |
| 05-May-2018 | Nicholas Isiekwe | England | 20-Apr-1998 | 20(15) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).