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