| Regular Season | Sunday, 26/03/1978 | Manly Warringah - APIA Leichhardt | 1:1 | ||||||
| Regular Season | Sunday, 02/04/1978 | Granville Parramatta - APIA Leichhardt | 1:4 | ||||||
| Regular Season | Sunday, 09/04/1978 | APIA Leichhardt - Sutherland Shire | 0:1 | ||||||
| Regular Season | Sunday, 16/04/1978 | Marrickville Olympic - APIA Leichhardt | 2:1 | ||||||
| Regular Season | Sunday, 23/04/1978 | APIA Leichhardt - Toongabbie | 0:0 | ||||||
| Regular Season | Tuesday, 25/04/1978 | Auburn - APIA Leichhardt | 1:2 | ||||||
| Regular Season | Saturday, 29/04/1978 | Inter Monaro - APIA Leichhardt | 2:1 | ||||||
| Regular Season | Saturday, 06/05/1978 | APIA Leichhardt - Arncliffe Scots | 2:1 | ||||||
| Regular Season | Sunday, 14/05/1978 | APIA Leichhardt - Auburn | 1:0 | ||||||
| Regular Season | Sunday, 21/05/1978 | Melita Eagles - APIA Leichhardt | 2:0 | ||||||
| Regular Season | Sunday, 28/05/1978 | APIA Leichhardt - Bankstown | 1:0 | ||||||
| Regular Season | Sunday, 04/06/1978 | Croatia Sydney - APIA Leichhardt | 1:0 | ||||||
| Regular Season | Sunday, 11/06/1978 | APIA Leichhardt - Avala | 2:2 | ||||||
| Regular Season | Sunday, 25/06/1978 | APIA Leichhardt - Manly Warringah | 2:0 | ||||||
| Regular Season | Sunday, 09/07/1978 | Sutherland Shire - APIA Leichhardt | 1:0 | ||||||
| Regular Season | Sunday, 16/07/1978 | APIA Leichhardt - Marrickville Olympic | 2:0 | ||||||
| Regular Season | Sunday, 23/07/1978 | Toongabbie - APIA Leichhardt | 2:3 | ||||||
| Regular Season | Sunday, 30/07/1978 | APIA Leichhardt - Inter Monaro | 0:1 | ||||||
| Regular Season | Sunday, 06/08/1978 | Arncliffe Scots - APIA Leichhardt | 2:1 | ||||||
| Regular Season | Sunday, 13/08/1978 | SSC Yugal - APIA Leichhardt | 0:2 | ||||||
| Regular Season | Sunday, 20/08/1978 | APIA Leichhardt - Melita Eagles | 0:1 | ||||||
| Regular Season | Sunday, 27/08/1978 | APIA Leichhardt - Croatia Sydney | 2:1 | ||||||
| Regular Season | Sunday, 03/09/1978 | Avala - APIA Leichhardt | 2:1 | ||||||
| Regular Season | Sunday, 10/09/1978 | Bankstown - APIA Leichhardt | 0:2 | ||||||
| Regular Season | Sunday, 17/09/1978 | APIA Leichhardt - Granville Parramatta | 4:0 | ||||||
| Regular Season | Sunday, 24/09/1978 | APIA Leichhardt - SSC Yugal | 2:0 |