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Round 6
17 July 1980
| Short (3½) |
0-1 |
Delaney (4½) |
| O'Hare (3½) |
0-1 |
Porter (3½) |
| Carton (3) |
½-½ |
Clarke (3) |
| Allen (3) |
0-1 |
Curtin (3) |
| Littleton (3) |
½-½ |
Cassidy (3) |
| Ludgate (2½) |
½-½ |
O'Reilly (2½) |
| McDaid (2½) |
½-½ |
McCarthy (2½) |
| Wallace (2½) |
½-½ |
McDonnell (2) |
| Killane (2) |
1-0 |
Pinkerton (2) |
| McGill (2) |
½-½ |
Lyons (2) |
| O'Shea (1½) |
1-0 |
O'Brien (1½) |
| Quinn (1) |
1-0 |
Cronin (½) |
Scores after round 6
| Delaney | 5½ |
| Porter | 4½ |
| Curtin | 4 |
| Carton | 3½ |
| Cassidy | 3½ |
| Clarke | 3½ |
| Littleton | 3½ |
| O'Hare | 3½ |
| Short | 3½ |
| Allen | 3 |
| Killane | 3 |
| Ludgate | 3 |
| McCarthy | 3 |
| McDaid | 3 |
| O'Reilly | 3 |
| Wallace | 3 |
| Lyons | 2½ |
| McDonnell | 2½ |
| McGill | 2½ |
| O'Shea | 2½ |
| Pinkerton | 2 |
| Quinn | 2 |
| O'Brien | 1½ |
| Cronin | ½ |