2020 Championship Group
| Pl | W | D | L | Diff | Pts | |||
| 1 | Perth RedStar | 5 | 3 | 1 | 1 | 15:4 | 11 | 10 |
| 2 | Cockburn City | 5 | 3 | 1 | 1 | 11:8 | 3 | 10 |
| 3 | Floreat Athena | 5 | 3 | 0 | 2 | 9:6 | 3 | 9 |
| 4 | Gwelup Croatia SC | 5 | 2 | 1 | 2 | 10:7 | 3 | 7 |
| 5 | Sorrento | 5 | 1 | 1 | 3 | 6:16 | -10 | 4 |
| 6 | Armadale | 5 | 1 | 0 | 4 | 7:17 | -10 | 3 |
Promotion ~ NPL Western Australia (Winners Play Offs: )
2020 Losers Play Offs
Semi-finals
| 1 | Balcatta | Perth Glory U21 | |
| 2 | Perth SC | Inglewood Utd |
2020 Main
| Pl | W | D | L | Diff | Pts | |||
| 1 | Floreat Athena | 11 | 8 | 1 | 2 | 24:13 | 11 | 25 |
| 2 | Gwelup Croatia SC | 11 | 7 | 2 | 2 | 30:14 | 16 | 23 |
| 3 | Cockburn City | 11 | 6 | 2 | 3 | 17:9 | 8 | 20 |
| 4 | Perth RedStar | 11 | 6 | 1 | 4 | 25:15 | 10 | 19 |
| 5 | Sorrento | 11 | 5 | 3 | 3 | 28:24 | 4 | 18 |
| 6 | Armadale | 11 | 5 | 0 | 6 | 24:25 | -1 | 15 |
| 7 | Bayswater | 11 | 4 | 3 | 4 | 18:19 | -1 | 15 |
| 8 | Inglewood Utd | 11 | 4 | 2 | 5 | 16:18 | -2 | 14 |
| 9 | Perth Glory U21 | 11 | 4 | 1 | 6 | 17:24 | -7 | 13 |
| 10 | Perth SC | 11 | 3 | 3 | 5 | 17:18 | -1 | 12 |
| 11 | Balcatta | 11 | 1 | 5 | 5 | 15:22 | -7 | 8 |
| 12 | Rockingham City | 11 | 1 | 1 | 9 | 10:40 | -30 | 4 |
Promotion ~ NPL Western Australia (Championship Group: )
NPL Western Australia (Relegation Group: )
2020 Play Offs
Semi-finals
| 1 | Cockburn City | Floreat Athena | 0 : 2 |
| 2 | Perth RedStar | Perth SC | 1 : 3 |
Final
| 1 | Floreat Athena | Perth SC | 4 : 0 |
2020 Relegation Group
| Pl | W | D | L | Diff | Pts | |||
| 7 | Perth SC | 5 | 3 | 1 | 1 | 15:5 | 10 | 10 |
| 8 | Balcatta | 5 | 3 | 0 | 2 | 10:8 | 2 | 9 |
| 9 | Perth Glory U21 | 5 | 2 | 2 | 1 | 8:6 | 2 | 8 |
| 10 | Inglewood Utd | 5 | 2 | 1 | 2 | 7:6 | 1 | 7 |
| 11 | Bayswater | 5 | 2 | 1 | 2 | 6:10 | -4 | 7 |
| 12 | Rockingham City | 5 | 0 | 1 | 4 | 4:15 | -11 | 1 |
Promotion ~ NPL Western Australia (Play Offs: )
Relegation
2020 Winners Play Offs
Semi-finals
| 1 | Cockburn City | Floreat Athena | |
| 2 | Perth RedStar | Gwelup Croatia SC |
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