StadiumKaraiskakis
| Current capacity of the stadium |
| Standing | 51 900 |
| Seats | 35 400 |
| Tribune | 24 400 |
| Seats for sponsors | 8 500 |
| Fans attended |
| 5. 6. 2026 | Olympiakos FC-FC Baník Hlinsko | 6 086 |
| 5. 6. 2026 | Olympiakos FC-Broumy | 6 001 |
| 5. 6. 2026 | Olympiakos FC-AS Cedex 013 Tučapy | 5 918 |
| 5. 6. 2026 | Olympiakos FC-FC Orange Borač | 5 587 |
| 4. 6. 2026 | Olympiakos FC-AEK Athens | 24 777 |
| 3. 6. 2026 | Olympiakos FC-FK BeDo Čadca | 5 977 |
| 3. 6. 2026 | Olympiakos FC-Filadelfia | 5 438 |
| 3. 6. 2026 | Olympiakos FC-Viggiano | 5 855 |
| 3. 6. 2026 | Olympiakos FC-FC Kočovce A | 5 664 |