| Date | R | Local v Visitante | - | |
|---|---|---|---|---|
| 08/26 04:58 | - | Balcatta sub-20 v Mandurah City sub-20 | D | 0-0 |
| 08/20 05:05 | - | Bayswater City sub-20 v Mandurah City sub-20 | L | 5-1 |
| 08/05 05:05 | - | Floreat Athena sub-20 v Mandurah City sub-20 | L | 5-1 |
| 07/08 04:55 | - | Armadale sub-20 v Mandurah City sub-20 | L | 4-0 |
| 07/01 05:03 | - | Cockburn City sub-20 v Mandurah City sub-20 | L | 1-0 |
| 06/24 05:00 | - | Mandurah City sub-20 v Inglewood Utd sub-20 | L | 0-1 |
| 06/17 05:00 | - | Mandurah City sub-20 v Stirling Lions sub-20 | L | 0-1 |
| 06/10 05:03 | - | Mandurah City sub-20 v Sorrento sub-20 | L | 1-5 |
| 05/13 05:02 | - | Mandurah City sub-20 v Balcatta sub-20 | L | 0-2 |
| 04/29 05:02 | - | ECU Joondalup sub-20 v Mandurah City sub-20 | L | 2-0 |
| 04/22 05:03 | - | Mandurah City sub-20 v Floreat Athena sub-20 | L | 0-6 |
| 04/15 05:02 | - | Subiaco AFC sub-20 v Mandurah City sub-20 | L | 1-0 |
| 04/02 04:45 | - | Mandurah City sub-20 v Armadale sub-20 | W | 3-1 |
| 03/25 07:00 | - | Mandurah City sub-20 v Perth Glory sub-20 | L | 0-4 |
| 03/18 04:49 | - | Inglewood Utd sub-20 v Mandurah City sub-20 | L | 4-2 |
| 03/11 05:00 | - | Stirling Lions sub-20 v Mandurah City sub-20 | D | 1-1 |
| 03/04 07:39 | - | Sorrento sub-20 v Mandurah City sub-20 | D | 0-0 |
| 02/26 08:55 | - | Joondalup United sub-20 v Mandurah City sub-20 | L | 2-1 |
| 02/18 09:59 | - | Perth SC sub-20 v Mandurah City sub-20 | L | 6-0 |