| 98FM Metropolitan Cup (J1) |
| 15/04/2012 |
| Clontarf | 35 | vs | 6 | Old Belvedere | | More |
| Referee : Glenn Sheridan Venue : Garda RFC |
| 01/04/2012 |
| Bective Rangers | | vs | | Old Belvedere | | More |
| Referee : Danny Fagan Venue : Donnybrook |
| 25/03/2012 |
| UCD | 35 | vs | 36 | Old Belvedere | | More |
| Referee : Noel Brannigan Venue : Belfield |
| Purcell Cup (Under 21) |
| 25/03/2012 |
| Lansdowne | 38 | vs | 23 | Old Belvedere | | More |
| Referee : Garreth Crawford Venue : Lansdowne Road |
| 11/03/2012 |
| Dublin University | 23 | vs | 27 | Old Belvedere | | More |
| Referee : Garret Holland Venue : College Park |
| McCorry Cup (Under 21) |
| 11/03/2012 |
| Old Belvedere | 15 | vs | 17 | Blackrock College RFC | | More |
| Referee : Eanna O'Dowd Venue : Anglesea Road |
| Albert O'Connell Cup (Metro J2) |
| 31/03/2012 |
| St Marys College RFC | 10 | vs | 17 | Old Belvedere | | More |
| Referee : Simon Porter Venue : De La Salle Palmerston FC |
| 24/03/2012 |
| Old Belvedere | 43 | vs | 8 | Stillorgan | | More |
| Referee : Ultan Ryan Venue : Anglesea Road |
| 08/03/2012 |
| Old Belvedere | 60 | vs | 0 | Garda | | More |
| Referee : Colm Roche Venue : Anglesea Road |
| Moran Cup (Metro J3) |
| 30/03/2012 |
| Old Belvedere | 5 | vs | 6 | Terenure College RFC | | More |
| Referee : Bernard McSweeney Venue : Anglesea Road |
| 23/03/2012 |
| Old Belvedere | 22 | vs | 10 | Malahide | | More |
| Referee : Aidan Fogarty Venue : Anglesea Road |
| 09/03/2012 |
| Greystones (J4) | 9 | vs | 13 | Old Belvedere | | More |
| Referee : Paul McDunphy Venue : Dr Hickey Park |
| Winters Cup (Metro J4) |
| 10/03/2012 |
| Old Belvedere | 15 | vs | 17 | Lansdowne | | More |
| Referee : Pat Dempsey Venue : Anglesea Road |
| Leinster Senior League Cup - Playoffs |
| 16/12/2011 |
| Blackrock College RFC | 3 | vs | 16 | Old Belvedere | | More |
| Referee : Dermot Blake Venue : Donnybrook |
| 12/11/2011 |
| Clontarf | 13 | vs | 22 | Old Belvedere | | More |
| Referee : John Montayne Venue : Castle Avenue |
| Leinster Senior League Cup - Section A |
| 23/09/2011 |
| Old Belvedere | 31 | vs | 12 | Bective Rangers | | More |
| Referee : Nigel Correll Venue : Anglesea Road |
| 17/09/2011 |
| Lansdowne | 17 | vs | 26 | Old Belvedere | | More |
| Referee : Brian MacNeice Venue : Lansdowne Road |
| 10/09/2011 |
| Blackrock College RFC | 21 | vs | 12 | Old Belvedere | | More |
| Referee : Eanna O'Dowd Venue : Stradbrook |
| 26/08/2011 |
| Old Belvedere | 29 | vs | 7 | Terenure College RFC | | More |
| Referee : Kevin Beggs Venue : Anglesea Road |
| Metro J1 League - Section A |
| 04/03/2012 |
| Old Belvedere | 46 | vs | 17 | Dublin University | | More |
| Referee : Simon Owens Venue : Anglesea Road |
| 27/02/2012 |
| Clontarf | 37 | vs | 24 | Old Belvedere | | More |
| Referee : George Clare Venue : Castle Avenue |
| 20/02/2012 |
| Lansdowne | 22 | vs | 31 | Old Belvedere | | More |
| Referee : Mark Scoyne Venue : Anglesea Road |
| 13/02/2012 |
| Old Belvedere | 13 | vs | 10 | St Marys College RFC | | More |
| Referee : Edward Kenny Venue : Anglesea Road |
| 16/01/2012 |
| Old Belvedere | 64 | vs | 20 | UCD | | More |
| Referee : John Carvill Venue : Anglesea Road |
| 12/12/2011 |
| Old Belvedere | 24 | vs | 0 | Bective Rangers | | More |
| Referee : Paul Haycock Venue : Anglesea Road |
| 05/12/2011 |
| Dublin University | 0 | vs | 69 | Old Belvedere | | More |
| Referee : Gary Glennon Venue : Anglesea Road |
| 19/11/2011 |
| Old Belvedere | 42 | vs | 14 | Clontarf | | More |
| Referee : John Montayne Venue : Anglesea Road |
| 14/11/2011 |
| St Marys College RFC | 15 | vs | 11 | Old Belvedere | | More |
| Referee : Robbie O'Flynn Venue : Templeville Rd |
| 21/10/2011 |
| UCD | 7 | vs | 26 | Old Belvedere | | More |
| Referee : James Fegan Venue : Belfield |
| 15/10/2011 |
| Old Belvedere | 14 | vs | 14 | Lansdowne | | More |
| Referee : Niall Behan Venue : Anglesea Road |
| 10/10/2011 |
| Bective Rangers | 7 | vs | 29 | Old Belvedere | | More |
| Referee : James Fegan Venue : Donnybrook |
| JP Fanagan Premier |
| 26/02/2012 |
| Lansdowne | 16 | vs | 25 | Old Belvedere | | More |
| Referee : Paul Haycock Venue : Lansdowne Road |
| 12/02/2012 |
| UCD | 22 | vs | 14 | Old Belvedere | | More |
| Referee : Brian Montayne Venue : Belfield |
| 01/02/2012 |
| Old Belvedere | 35 | vs | 5 | St Marys College RFC | | More |
| Referee : Ciaran McGowan Venue : Anglesea Road |
| 22/01/2012 |
| Old Belvedere | 18 | vs | 8 | Dublin University | | More |
| Referee : Aidan Fogarty Venue : Anglesea Road |
| 15/01/2012 |
| Old Belvedere | 29 | vs | 6 | Old Wesley | | More |
| Referee : Arthur Lynch Venue : Anglesea Road |
| 11/12/2011 |
| Dublin University | 11 | vs | 13 | Old Belvedere | | More |
| Referee : John Montayne Venue : College Park |
| 27/11/2011 |
| Old Belvedere | 43 | vs | 13 | Clontarf | | More |
| Referee : James Fegan Venue : Anglesea Road |
| 13/11/2011 |
| Old Belvedere | 20 | vs | 14 | UCD | | More |
| Referee : Ken Henley-Willis Venue : Anglesea Road |
| 06/11/2011 |
| Blackrock College RFC | 10 | vs | 53 | Old Belvedere | | More |
| Referee : Glenn Sheridan Venue : Stradbrook |
| 23/10/2011 |
| St Marys College RFC | 5 | vs | 15 | Old Belvedere | | More |
| Referee : Gary Conway Venue : Templeville Rd |
| 16/10/2011 |
| Terenure College RFC | 5 | vs | 50 | Old Belvedere | | More |
| Referee : Simon Owens Venue : Lakelands Park |
| 09/10/2011 |
| Old Belvedere | 13 | vs | 19 | Lansdowne | | More |
| Referee : Ciaran McGowan Venue : Anglesea Road |
| JP Fanagan Pennant (Phase 1) - Pool 1 |
| 13/11/2011 |
| Old Belvedere | 29 | vs | 7 | Greystones | | More |
| Referee : Roland Clear Venue : Anglesea Road |
| 06/11/2011 |
| Old Belvedere | 24 | vs | 18 | NUIM Barnhall | | More |
| Referee : Simon Porter Venue : Anglesea Road |
| 23/10/2011 |
| IT Carlow | 0 | vs | 0 | Old Belvedere | | More |
| Referee : Brendan Conroy Venue : IT Carlow |
| 16/10/2011 |
| Naas | 28 | vs | 21 | Old Belvedere | | More |
| Referee : Martin Nunan Venue : Forenaughts |
| 09/10/2011 |
| Old Belvedere | 19 | vs | 11 | Lansdowne | | More |
| Referee : Tim Towend Venue : Anglesea Road |
| JP Fanagan Pennant (Phase 2) - Section A |
| 04/03/2012 |
| Old Belvedere | | vs | | Skerries | | More |
| Referee : Venue : Anglesea Road |
| 26/02/2012 |
| Old Belvedere | 20 | vs | 15 | UCD | | More |
| Referee : Simon Owens Venue : Anglesea Road |
| 19/02/2012 |
| Dublin University | 10 | vs | 26 | Old Belvedere | | More |
| Referee : Jason Le Lievre Venue : College Park |
| 06/02/2012 |
| Wanderers | 23 | vs | 20 | Old Belvedere | | More |
| Referee : Aidan Fogarty Venue : Lansdowne Road |
| 22/01/2012 |
| Old Belvedere | 17 | vs | 20 | Naas | | More |
| Referee : David Williams Venue : Anglesea Road |
| 15/01/2012 |
| Skerries | 22 | vs | 20 | Old Belvedere | | More |
| Referee : Richard Carson Venue : Holmpatrick |
| 08/01/2012 |
| UCD | 12 | vs | 18 | Old Belvedere | | More |
| Referee : William Murphy Venue : Belfield |
| 04/12/2011 |
| Old Belvedere | 33 | vs | 10 | Dublin University | | More |
| Referee : Robbie O'Flynn Venue : Anglesea Road |
| 27/11/2011 |
| Old Belvedere | 29 | vs | 13 | Wanderers | | More |
| Referee : Tomas Treacy Venue : Anglesea Road |
| 16/10/2011 |
| Naas | 28 | vs | 21 | Old Belvedere | | More |
| Referee : Venue : Forenaughts |
| Senior Seconds League Cup - Section A |
| 22/09/2011 |
| Old Belvedere | 78 | vs | 3 | Bective Rangers | | More |
| Referee : Glenn Sheridan Venue : Anglesea Road |
| 17/09/2011 |
| Lansdowne | 15 | vs | 59 | Old Belvedere | | More |
| Referee : Simon Owens Venue : Lansdowne Road |
| 10/09/2011 |
| Blackrock College RFC | | vs | | Old Belvedere | | More |
| Referee : Venue : Stradbrook |
| 26/08/2011 |
| Old Belvedere | 43 | vs | 12 | Terenure College RFC | | More |
| Referee : Steve McCann Venue : Anglesea Road |
| Senior Seconds League Cup - Playoffs |
| 30/10/2011 |
| Old Belvedere | 10 | vs | 31 | Clontarf | | More |
| Referee : Noel Brannigan Venue : Castle Avenue |
| 03/10/2011 |
| Old Belvedere | 36 | vs | 14 | UCD | | More |
| Referee : James Fegan Venue : Anglesea Road |
| Metro J2 League (Phase 1) - Pool 1 |
| 05/11/2011 |
| Old Belvedere | | vs | | CYM | | More |
| Referee : Colm Roche Venue : Anglesea Road |
| 22/10/2011 |
| Old Belvedere | 3 | vs | 10 | St Marys College RFC | | More |
| Referee : Paul Cusack Venue : Anglesea Road |
| 15/10/2011 |
| Lansdowne | 23 | vs | 15 | Old Belvedere | | More |
| Referee : Donal Moore Venue : Lansdowne Road |
| 01/10/2011 |
| Old Belvedere | 46 | vs | 13 | UCD | | More |
| Referee : Jason Le Lievre Venue : Anglesea Road |
| Metro J2 League (Phase 2) - Section A |
| 18/02/2012 |
| Stillorgan | 32 | vs | 17 | Old Belvedere | | More |
| Referee : Patrick Mann Venue : CUS Sportsground Clonskeagh |
| 28/01/2012 |
| St Marys College RFC | 16 | vs | 7 | Old Belvedere | | More |
| Referee : Paul McSweeney Venue : Templeville Rd |
| 14/01/2012 |
| Old Belvedere | 15 | vs | 35 | Lansdowne | | More |
| Referee : Mark Power Venue : Anglesea Road |
| 07/01/2012 |
| Clontarf | 34 | vs | 14 | Old Belvedere | | More |
| Referee : Eamon Sayers Venue : Castle Avenue |
| 03/12/2011 |
| Old Belvedere | 26 | vs | 20 | Stillorgan | | More |
| Referee : John Crowley Venue : Anglesea Road |
| 26/11/2011 |
| Old Wesley | 0 | vs | 66 | Old Belvedere | | More |
| Referee : Berney White Venue : Ballycorus Rd |
| 19/11/2011 |
| Old Belvedere | 20 | vs | 5 | Clontarf | | More |
| Referee : Garret Holland Venue : Anglesea Road |
| 22/10/2011 |
| Old Belvedere | 3 | vs | 10 | St Marys College RFC | | More |
| Referee : Venue : Anglesea Road |
| 15/10/2011 |
| Lansdowne | 23 | vs | 15 | Old Belvedere | | More |
| Referee : Venue : Lansdowne Road |
| Leinster J3 League - Section A |
| 02/03/2012 |
| Greystones | | vs | | Old Belvedere | | More |
| Referee : Venue : Dr Hickey Park |
| 17/02/2012 |
| Old Belvedere | | vs | | Terenure College RFC | | More |
| Referee : Dermot Dooley Venue : Anglesea Road |
| 03/02/2012 |
| Old Belvedere | 16 | vs | 31 | Lansdowne | | More |
| Referee : David Moreau Venue : Anglesea Road |
| 27/01/2012 |
| St Marys College RFC | 23 | vs | 13 | Old Belvedere | | More |
| Referee : Garret Holland Venue : Templeville Rd |
| 13/01/2012 |
| Old Belvedere | 75 | vs | 0 | Suttonians | | More |
| Referee : Owen Desmond Venue : Anglesea Road |
| 06/01/2012 |
| Blackrock College RFC | 18 | vs | 20 | Old Belvedere | | More |
| Referee : David Stronge Venue : Anglesea Road |
| 09/12/2011 |
| Old Belvedere | 13 | vs | 7 | Old Wesley | | More |
| Referee : Tim Towend Venue : Anglesea Road |
| 02/12/2011 |
| Old Belvedere | 35 | vs | 13 | Greystones | | More |
| Referee : Sean Rochford Venue : Anglesea Road |
| 27/11/2011 |
| Terenure College RFC | 41 | vs | 10 | Old Belvedere | | More |
| Referee : Garret Holland Venue : Lakelands Park |
| 11/11/2011 |
| Lansdowne | 32 | vs | 24 | Old Belvedere | | More |
| Referee : Paul McSweeney Venue : Lansdowne Road |
| 04/11/2011 |
| Old Belvedere | 36 | vs | 20 | St Marys College RFC | | More |
| Referee : Barry Neary Venue : Anglesea Road |
| 21/10/2011 |
| Suttonians | 0 | vs | 63 | Old Belvedere | | More |
| Referee : Barry Neary Venue : John J McDowell Memorial Grounds |
| 14/10/2011 |
| Old Belvedere | 32 | vs | 36 | Blackrock College RFC | | More |
| Referee : Robert Phelan Venue : Anglesea Road |
| 07/10/2011 |
| Old Wesley | 20 | vs | 20 | Old Belvedere | | More |
| Referee : Donagh McGowan Venue : Donnybrook |
| Leinster J4 League Section A (Phase 1) - Pool 2 |
| 19/11/2011 |
| Stillorgan | 10 | vs | 22 | Old Belvedere | | More |
| Referee : Dermot Sheehan Venue : CUS Sportsground Clonskeagh |
| 05/11/2011 |
| Lansdowne | 16 | vs | 11 | Old Belvedere | | More |
| Referee : Tom Walsh Venue : Ballycorus Rd |
| 22/10/2011 |
| Old Belvedere | 24 | vs | 15 | Clontarf | | More |
| Referee : Kevin O'Boyle Venue : Anglesea Road |
| 15/10/2011 |
| Old Belvedere | 19 | vs | 14 | NUIM Barnhall A | | More |
| Referee : John Flynn Venue : Anglesea Road |
| 08/10/2011 |
| Terenure College RFC | 11 | vs | 17 | Old Belvedere | | More |
| Referee : Michael Carbery Venue : Lakelands Park |
| Leinster J4 League Section A (Phase 2) - Premier Division |
| 03/03/2012 |
| Greystones | 20 | vs | 5 | Old Belvedere | | More |
| Referee : Venue : Dr Hickey Park |
| 18/02/2012 |
| St Marys College RFC | 20 | vs | 0 | Old Belvedere | | More |
| Referee : Tony Heaney Venue : Templeville Rd |
| 04/02/2012 |
| Old Belvedere | 0 | vs | 29 | Lansdowne | | More |
| Referee : Carl O Meara Venue : Anglesea Road |
| 28/01/2012 |
| Old Belvedere | | vs | | Wanderers | | More |
| Referee : Venue : Anglesea Road |
| 14/01/2012 |
| NUIM Barnhall A | | vs | | Old Belvedere | | More |
| Referee : Martin Kavanagh Venue : Parsonstown |
| 07/01/2012 |
| Old Belvedere | 0 | vs | 50 | Greystones | | More |
| Referee : Donagh McGowan Venue : Anglesea Road |
| 10/12/2011 |
| Old Belvedere | 16 | vs | 22 | St Marys College RFC | | More |
| Referee : Paul McDunphy Venue : Anglesea Road |
| 03/12/2011 |
| Wanderers | 28 | vs | 11 | Old Belvedere | | More |
| Referee : Tony Heaney Venue : Merrion Rd |
| 05/11/2011 |
| Lansdowne | 16 | vs | 11 | Old Belvedere | | More |
| Referee : Venue : Ballycorus Rd |
| 15/10/2011 |
| Old Belvedere | 19 | vs | 14 | NUIM Barnhall A | | More |
| Referee : Venue : Anglesea Road |
