| Rank | Athlete | College | Mark | Date | Championship | Race | Venue |
|---|---|---|---|---|---|---|---|
| 525 | Len Braham | BLE Select | 175′11″ | 1977-06-14 | IUAA Representative | DT | Belfield |
| 5 | John Menton | IUAA | 52.96 | 1993-06-22 | Celtic T&F | DT | Antrim Forum |
| 164 | John Menton | ILSI | 52.38 | 1995-04-22 | T&F | DT | Mardyke |
| 161 | John Menton | ILSI | 48.36 | 1996-04-19 to 1996-04-20 | T&F | DT | Antrim Forum |
| 174 | John Menton | UCD | 48.20 | 1991-05-03 to 1991-05-04 | T&F | DT | Plassey |
| 162 | Gerard Nagle | UCD | 47.86 | 1996-04-19 to 1996-04-20 | T&F | DT | Antrim Forum |
| 178 | John Farrelly | UCD | 47.52 | 1989-05-05 to 1989-05-06 | T&F | DT | Mary Peters |
| 188 | Mark Sweeney | RCSI | 46.80 | 1988-04-29 to 1988-04-30 | T&F | DT | Santry |
| 190 | Mark Sweeney | RCSI | 46.30 | 1986-05-02 to 1986-05-03 | T&F | DT | Santry & College Park |
| 419 | Daniel Clifford | IT Tralee | 45.83 | 2010-04-24 | T&F | DT | Santry |
| 6 | Ger Nagle | IUAA | 45.70 | 1993-06-22 | Celtic T&F | DT | Antrim Forum |
| 374 | Jeremy Harper | UU | 45.70 | 2006-04-22 | T&F | DT | Antrim Forum |
| 394 | Jeremy Harper | UU | 45.68 | 2008-04-19 | T&F | DT | Irishtown Stadium & Belfield |
| 515 | Dave Sweeney | Dublin | 45.68 | 1995-06-17 | IUAA Representative | DT | Belfield |
| 191 | Mark Sweeney | RCSI | 45.22 | 1985-05-03 to 1985-05-04 | T&F | DT | Mardyke |
| 187 | Paul Quinlan | TCD | 45.12 | 1988-04-29 to 1988-04-30 | T&F | DT | Santry |
| 189 | Mark Sweeney | RCSI | 45.06 | 1987-05-08 to 1987-05-09 | T&F | DT | Antrim Forum |
| 102 | Eoin Leen | UCC | 45.02 | 2004-04-17 | T&F | DT | Mardyke |
| 17 | Ger Nagle | IUAA | 44.68 | 1995-06-20 | Celtic T&F | DT | Antrim Forum |
| 173 | Gerard Nagle | UCD | 44.68 | 1992-04-24 to 1992-04-25 | T&F | DT | Belfield |
| Athlete | College | Mark | Date | Venue |
|---|---|---|---|---|
| William "Leslie" W. Smith | TCD | 108′1″ | 1914-06-06 | Ulster Cricket Club Grounds |
| Joseph "Joe" Phelan | UCD | 108′5″ | 1921-06-04 | Terenure |
| William L.W. Smith | TCD | 109′4½″ | 1923-06-02 | Cherryvale |
| Joseph "Joe" Phelan | UCD | 114′10½″ | 1924-05-31 | College Park |
| Denis John Cussen | TCD | 115′8″ | 1925-06-06 | Terenure |
| Dr Patrick "Pat" J. O'Callaghan | UCC | 116′9½″ | 1929-06-01 | Terenure |
| Dr Patrick "Pat" J. O'Callaghan | UCC | 133′8″ | 1930-06-07 | Mardyke |
| Patrick "Paddy" Browne | UCD | 145′8″ | 1946-07-14 | Galway |
| Mark Sweeney | RCSI | 45.22 | 1985-05-03 to 1985-05-04 | Mardyke |
| Mark Sweeney | RCSI | 46.30 | 1986-05-02 to 1986-05-03 | Santry & College Park |
| Mark Sweeney | RCSI | 46.80 | 1988-04-29 to 1988-04-30 | Santry |
| John Farrelly | UCD | 47.52 | 1989-05-05 to 1989-05-06 | Mary Peters |
| John Menton | UCD | 48.20 | 1991-05-03 to 1991-05-04 | Plassey |
| John Menton | ILSI | 52.38 | 1995-04-22 | Mardyke |
| Athlete | College | Mark | Date | Venue |
|---|---|---|---|---|
| Gay Porter | QUB | 116′5″ | 1968-05-11 | College Park |
| Gay Porter | QUB | 135′0″ | 1969-05-03 | Malone Road |
| A.M. Flannery | QUB | 41.82 | 1992-04-24 to 1992-04-25 | Belfield |
| Eileen O'Keeffe | AIT | 43.13 | 2001-04-21 | Santry & Belfield |
| Eileen O'Keeffe | RCSI | 45.38 | 2006-04-22 | Antrim Forum |