At Co. Sligo Golf Club from 3th to 5th September 2021
| Result | Score | Champion | Club | Rounds | |
| Total | Player | Club | Rounds | ||
| 1st | -9 | 275 | Hugh Foley |
The Royal Dublin G. C. |
69, 67, 66 & 73 |
| T-2nd | -4 | 280 | Liam Nolan |
Galway G. C. | 70, 68, 76 & 66 |
| T-2nd | -4 | 280 | Paul Coughlan |
Castleknock G. C. |
67, 68, 72 & 73 |
| 4th | -3 | 281 | Matthew McClean | Malone G. C. | 70, 72, 70 & 69 |
| T-5th | -2 | 282 | Robert Cannon | Balbriggan G. C. | 71, 70, 73 & 68 |
| T-5th | -2 | 282 | Richard Knightly | The Royal Dublin G. C. | 72, 69, 71 & 70 |
| 7th | -1 | 283 | T. J. Ford | Co. Sligo G. C. | 72, 66, 71 & 74 |
| 8th | +1 | 285 | Jack McDonnell | Forrest Little G. C. | 71, 71, 70 & 73 |
| T-9th | +2 | 286 | Thomas Higgins | Roscommon G. C. | 78, 70, 67 & 71 |
| T-9th | +2 | 286 | David Kitt | Athenry G. C. | 69, 70, 73 & 72 |
| T-9th | +2 | 286 | Colm Campbell Jnr. | Warrenpoint G. C. | 65, 72, 74 & 75 |
| T-12th | +3 | 287 | Arron Edwards-Hill | Chelmsfort G. C. | 71, 72, 76 & 68 |
| T-12th | +3 | 287 | Joe Lyons | Galway G. C. | 71, 71, 72 & 73 |
| 14th | +4 | 288 | Andrew Mulholland | Castlerock G. C. | 71, 76, 73 & 68 |
| 15th | +5 | 289 | Robert Abernethy | Dun Laoghaire G. C. | 75, 68, 72 & 74 |
| T-16th | +7 | 291 | Simon Walker | Roscommon G. C. | 77, 72, 72 & 70 |
| T-16th | +7 | 291 | Ryan Griffin | Ballybofey & Stranorlar G. C. | 71, 76, 73 & 71 |
| T-18th | +8 | 292 | Eddie McCormack | Galway Bay G. C. | 75, 73, 74 & 70 |
| T-18th | +8 | 292 | Allan Hill | Athenry G. C. | 78, 69, 73 & 72 |
| T-18th | +8 | 292 | Jake Whelan | Grange G. C. | 71, 75, 76 & 70 |
| T-18th | +8 | 292 | Keith Egan | Carton House G. C. | 73, 72, 73 & 74 |
| T-22th | +9 | 293 | Sean Ryan | The Royal Dublin G. C. | 74, 76, 71 & 72 |
| T-22th | +9 | 293 | Ian Lynch | Rosslare G. C. | 73, 73, 73 & 74 |
| T-22th | +9 | 293 | James Hewitt | Tandragee G. C. | 72, 74, 72 & 75 |
| 25th | +10 | 294 | Caolan Rafferty | Dundalk G. C. | 75, 72, 74 & 73 |
| 26th | +11 | 295 | Conor Hickey | Dooks G. C. | 72, 71, 78 & 74 |
| T-27th | +12 | 296 | Ruairi O'Connor | Co. Sligo G. C. | 73, 77, 75 & 71 |
| T-27th | +12 | 296 | Barry Anderson | Co. Sligo G. C. | 73, 76, 72 & 75 |
| 29th | +13 | 297 | Andrew Hickey | Galway Bay G. C. | 79, 67, 74 & 77 |
| 30th | +14 | 298 | Tom Dowdell | Woodbrook G. C. | 73, 72, 78 & 75 |
| 31th | +15 | 299 | Aodhagan Brady | Co. Sligo G/ C. | 71, 70, 80 & 78 |
| T-32th | +16 | 300 | James Fox | Portmarnock G. C. | 79, 71, 78 & 72 |
| T-32th | +16 | 300 | David Brady | Co. Sligo G. C. | 75, 71, 82 & 72 |
| T-32th | +16 | 300 | Gareth Lappin | Belvoir Park G. C. | 73, 75, 78 & 74 |
| T-35th | +17 | 301 | Eoin Sullivan | Carton House G. C. | 73, 72, 82 & 74 |
| T-35th | +17 | 301 | Cian Hall | Adare Manor G. C. | 77, 72, 77 & 75 |
| 37th | +18 | 302 | Sean Dowling | The Island G. C. | 69, 75, 73 & 85 |
| 38th | +19 | 303 | Ross McKeever | Castle G. C. | 75, 75, 74 & 79 |
| 39th | +20 | 304 | Michael Shiel | Galway Bay G. C. | 72, 74, 77 & 81 |
| 40th | +22 | 306 | Eanna Griffin | Waterford G. C. | 77, 69, 77 & 83 |
| T-41th | +23 | 307 | Shane McDermott | Slieve Russell G. C. | 72, 76, 83 & 76 |
| T-41th | +23 | 307 | Luke Cunningham | Galway Bay G. C. | 76, 74, 79 & 78 |
| 43th | +28 | 312 | Eoghan O'Donnell | Tralee G. C. | 77, 73, 79 & 83 |