2018 Final Stage
Quarter-finals
| 1 | Campbelltown City | Canberra Croatia | 3 : 0 |
| 2 | Perth SC | Sydney Olympic | 0 : 1 |
| 3 | Queensland Lions | Edgeworth E. | 1 : 0 |
| 4 | Devonport | Heidelberg Utd | 2 : 3 |
Semi-finals
| 1 | Campbelltown City | Sydney Olympic | 2 : 1 |
| 2 | Queensland Lions | Heidelberg Utd | 2 : 1 |
Final
| 1 | Campbelltown City | Queensland Lions | 2 : 1 |
2018 Main
| Pl | W | D | L | Diff | Pts | |||
| 1 | Sydney Olympic | 22 | 15 | 3 | 4 | 40:19 | 21 | 48 |
| 2 | APIA Leichhardt | 22 | 14 | 3 | 5 | 62:28 | 34 | 45 |
| 3 | Sydney Utd | 22 | 12 | 2 | 8 | 36:29 | 7 | 38 |
| 4 | Blacktown City | 22 | 9 | 7 | 6 | 27:20 | 7 | 34 |
| 5 | Rockdale Ilinden | 22 | 9 | 4 | 9 | 39:43 | -4 | 31 |
| 6 | Marconi Stallions | 22 | 8 | 6 | 8 | 30:34 | -4 | 30 |
| 7 | Manly Utd | 22 | 7 | 7 | 8 | 33:32 | 1 | 28 |
| 8 | Hakoah Sydney | 22 | 8 | 4 | 10 | 33:32 | 1 | 28 |
| 9 | Wollongong Wolves | 22 | 7 | 6 | 9 | 23:36 | -13 | 27 |
| 10 | Sutherland Sharks | 22 | 7 | 2 | 13 | 30:39 | -9 | 23 |
| 11 | Bonnyrigg White Eagles | 22 | 6 | 4 | 12 | 30:51 | -21 | 22 |
| 12 | Sydney FC U21 | 22 | 4 | 4 | 14 | 27:47 | -20 | 16 |
Promotion ~ National Premier Leagues Play Offs
Promotion ~ NPL NSW (Play Offs: )
Relegation
2018 Play Offs
1/8-finals
| 1 | Sydney Olympic | Bye | |
| 2 | APIA Leichhardt | Sydney Utd | 1 : 2 |
| 7 | APIA Leichhardt | Bye | |
| 8 | Blacktown City | Rockdale Ilinden | 0 : 2 |
Quarter-finals
| 1 | Sydney Olympic | Sydney Utd | 4 : 0 |
| 4 | APIA Leichhardt | Rockdale Ilinden | 8 : 2 |
Semi-finals
| 1 | Sydney Olympic | Bye | |
| 2 | Sydney Utd | APIA Leichhardt | 1 : 2 |
Final
| 1 | Sydney Olympic | APIA Leichhardt | 3 : 1 |
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