| MD | Players | Club | Nationality | DOB | A(D) |
|---|---|---|---|---|---|
| 05-May-2023 |  Duane Vermeulan | Ulster | South Africa | 03-Jul-1986 | 36(306) |
| 27-May-2023 |  Deon Andre Fourie | Western Stormers | South Africa | 25-Sep-1986 | 36(244) |
| 13-May-2023 |  Keith Earls | Munster | Ireland | 02-Oct-1987 | 35(224) |
| 27-May-2023 | Stephen Archer | Munster | Ireland | 29-Jan-1988 | 35(119) |
| 06-May-2023 | Corne Fourie | Western Stormers | South Africa | 02-Sep-1988 | 34(246) |
| 06-May-2023 | Ben Tapuai | Sharks | Australia | 19-Jan-1989 | 34(107) |
| 27-May-2023 | Conor Murray | Munster | Ireland | 20-Apr-1989 | 34(37) |
| 13-May-2023 |  David Kearney | Leinster | Ireland | 19-Jun-1989 | 33(328) |
| 06-May-2023 | Richie Gray | Glasgow Warriors | Scotland | 24-Aug-1989 | 33(255) |
| 27-May-2023 | Peter O'Mahony | Munster | Ireland | 17-Sep-1989 | 33(252) |
| 13-May-2023 | Bundee Aki | Connacht | Ireland | 07-Apr-1990 | 33(36) |
| 05-May-2023 | Robert Herring | Ulster | Ireland | 27-Apr-1990 | 33(8) |
| 05-May-2023 | John Cooney | Ulster | Ireland | 01-May-1990 | 33(4) |
| 06-May-2023 | Makazole Mapimpi | Sharks | South Africa | 26-Jun-1990 | 32(314) |
| 13-May-2023 | Dennis Buckley | Connacht | Ireland | 09-Aug-1990 | 32(277) |
| 13-May-2023 | Charlie Ngatai | Leinster | New Zealand | 17-Aug-1990 | 32(269) |
| 05-May-2023 | Jeff Allen | Ulster | New Zealand | 19-Nov-1990 | 32(167) |
| 06-May-2023 | Bongi Mbonambi | Sharks | South Africa | 07-Jan-1991 | 32(119) |
| 13-May-2023 | David Hefferman | Connacht | Ireland | 31-Jan-1991 | 32(102) |
| 13-May-2023 | Tiernan O'Halloran | Connacht | Ireland | 26-Feb-1991 | 32(76) |
| 27-May-2023 | Frans Malherbe | Western Stormers | South Africa | 14-Mar-1991 | 32(74) |
| 27-May-2023 | Ruhan Nel | Western Stormers | South Africa | 17-May-1991 | 32(10) |
| 13-May-2023 | Michael Alaalatoa | Leinster | Samoa | 28-Aug-1991 | 31(258) |
| 13-May-2023 | Finley Bealham | Connacht | Ireland | 09-Oct-1991 | 31(217) |
| 27-May-2023 | Steven Kitshoff | Western Stormers | South Africa | 10-Feb-1992 | 31(107) |
| 06-May-2023 | Gerbrandt Grobler | Sharks | South Africa | 06-Feb-1992 | 31(89) |
| 05-May-2023 | Jonny Murphy | Connacht | Ireland | 06-Feb-1992 | 31(88) |
| 27-May-2023 | Malakai Fekitoa | Munster | Tonga | 10-May-1992 | 31(17) |
| 27-May-2023 | Tadhg Beirne | Munster | Ireland | 01-Aug-1992 | 30(299) |
| 13-May-2023 | Willie Engelbrecht | Western Stormers | South Africa | 24-Jul-1992 | 30(293) |
| 13-May-2023 | Jack Conan | Leinster | Ireland | 29-Jul-1992 | 30(288) |
| 06-May-2023 | Johan Goosen | Bulls | South Africa | 27-Jul-1992 | 30(283) |
| 05-May-2023 | Stuart McCloskey | Ulster | Ireland | 06-Aug-1992 | 30(272) |
| 13-May-2023 | Jack Carty | Connacht | Ireland | 31-Aug-1992 | 30(255) |
| 05-May-2023 | Rory Sutherland | Ulster | Scotland | 24-Aug-1992 | 30(254) |
| 05-May-2023 | Alan O'Connor | Ulster | Ireland | 10-Sep-1992 | 30(237) |
| 06-May-2023 | Tadhg Furlong | Leinster | Ireland | 14-Nov-1992 | 30(173) |
| 27-May-2023 | Marvin Orie | Western Stormers | South Africa | 15-Feb-1993 | 30(101) |
| 13-May-2023 | Luke McGrath | Leinster | Ireland | 03-Feb-1993 | 30(99) |
| 06-May-2023 | Sikhumbuzo Notshe | Sharks | South Africa | 28-May-1993 | 29(343) |
| 13-May-2023 | Robbie Henshaw | Leinster | Ireland | 12-Jun-1993 | 29(335) |
| 06-May-2023 | Jonny Matthews | Glasgow Warriors | Scotland | 05-Jul-1993 | 29(305) |
| 27-May-2023 | Jean Kleyn | Munster | South Africa | 26-Aug-1993 | 29(274) |
| 06-May-2023 | Jamie Bhatti | Glasgow Warriors | Scotland | 08-Sep-1993 | 29(240) |
| 06-May-2023 | Sebastian Cancelliere | Glasgow Warriors | Argentina | 17-Sep-1993 | 29(231) |
| 13-May-2023 | Tom Farrell | Connacht | Ireland | 01-Oct-1993 | 29(224) |
| 06-May-2023 | Harold Vorster | Bulls | South Africa | 11-Oct-1993 | 29(207) |
| 06-May-2023 | Lukhanyo Am | Sharks | South Africa | 28-Nov-1993 | 29(159) |
| 06-May-2023 | Cyle Brink | Bulls | South Africa | 16-Jan-1994 | 29(110) |
| 06-May-2023 | Kyle Steyn | Glasgow Warriors | Scotland | 29-Jan-1994 | 29(97) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).