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| Pairings & results
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Round 4
15 July 1975
| Keogh (2½) |
½-½ |
Wallace (3) |
| McGuinness (2½) |
0-1 |
Delaney (2½) |
| Prakash (2) |
1-0 |
Blair (2½) |
| Hadden (2) |
1-0 |
Beckett (2) |
| Crowe (2) |
0-1 |
Doyle (2) |
| O'Hare (2) |
0-1 |
Ludgate (2) |
| Cummins (1½) |
0-1 |
McDaid (1½) |
| Jackson (1½) |
½-½ |
Healy (1½) |
| Pinkerton (1½) |
1-0 |
Ó Tuathail (1½) |
| Gilmore (1) |
0-1 |
Littleton (1½) |
| Byrne (1) |
0-1 |
Martin (1) |
| Kennedy (½) |
1-0 |
Cootes (1) |
| Noone (½) |
1-0 |
McCormick (½) |
| Alfred (½) |
1-0 |
Heathwood (½) |
| Hall (½) |
0-1 |
Denny (½) |
Scores after round 4
| Delaney | 3½ |
| Wallace | 3½ |
| Doyle | 3 |
| Hadden | 3 |
| Keogh | 3 |
| Ludgate | 3 |
| Prakash | 3 |
| Blair | 2½ |
| Littleton | 2½ |
| McDaid | 2½ |
| McGuinness | 2½ |
| Pinkerton | 2½ |
| Beckett | 2 |
| Crowe | 2 |
| Healy | 2 |
| Jackson | 2 |
| Martin | 2 |
| O'Hare | 2 |
| Alfred | 1½ |
| Cummins | 1½ |
| Denny | 1½ |
| Kennedy | 1½ |
| Noone | 1½ |
| Ó Tuathail | 1½ |
| Byrne | 1 |
| Cootes | 1 |
| Gilmore | 1 |
| Hall | ½ |
| Heathwood | ½ |
| McCormick | ½ |