| 1. Round | 26/08/2012 | Veria FC | - | Olympiakos Piraeus | 1:2 | ||||
| 2. Round | 02/09/2012 | Olympiakos Piraeus | - | Levadiakos | 4:0 |  |
 |
||
| 3. Round | 15/09/2012 | PAS Giannina | - | Olympiakos Piraeus | 1:2 | ||||
| 5. Round | 29/09/2012 | Atromitos | - | Olympiakos Piraeus | 0:1 | ||||
| 6. Round | 07/10/2012 | Olympiakos Piraeus | - | Asteras Tripolis | 1:0 | ||||
| 9. Round | 03/11/2012 | Olympiakos Piraeus | - | OFI Heraklion | 2:0 | ||||
| 10. Round | 11/11/2012 | AEK Athen | - | Olympiakos Piraeus | 0:4 | ||||
| 11. Round | 17/11/2012 | Olympiakos Piraeus | - | AO Kerkyra | 2:0 | |
|||
| 12. Round | 25/11/2012 | PAOK Saloniki | - | Olympiakos Piraeus | 1:1 | ||||
| 13. Round | 01/12/2012 | Olympiakos Piraeus | - | Platanias Chanion | 2:1 | ||||
| 14. Round | 09/12/2012 | Panathinaikos | - | Olympiakos Piraeus | 2:2 | ||||
| 22. Round | 17/02/2013 | Skoda Xanthi | - | Olympiakos Piraeus | 0:2 | ||||
| 23. Round | 24/02/2013 | Olympiakos Piraeus | - | Aris Saloniki | 2:1 | ||||
| 24. Round | 02/03/2013 | OFI Heraklion | - | Olympiakos Piraeus | 0:4 | ||||
| 30. Round | 21/04/2013 | Olympiakos Piraeus | - | Panionios GSS | 2:1 |
Greece