Olympiakos achieved a joint club record 16 wins in a row at the start of the Greek Super League season after beating Panionios.
The Athens side can break their record streak if they beat Levadiakos next weekend.
Marco Silva's team are 18 points clear of AEK Athens thanks to goals from Alejandro Dominquez, Felipe Pardo and Ideye Brown.
Spiros Risvanis had levelled the scores for Panionios.
Olympiakos have won the last five Greek titles, and 17 of the last 19 - with Panathinaikos the only other side to have won the league since 1994-95.
- 6OikonomouBooked at 9mins
- 19MasourasSubstituted forHalkiadakisat 68'minutes
- 7KorbosSubstituted forMitropoulosat 80'minutesBooked at 90mins
- 21SiopisBooked at 86mins
- 26VillalbaBooked at 59mins
- 11AnsarifardSubstituted forDurmishajat 80'minutes
- 16Jimenez Gago
- 30SalinoBooked at 36mins
- 6da Costa
- 11KasamiSubstituted forPardoat 67'minutes
- 10DominguezSubstituted forCambiassoat 77'minutes
- 21DurmazSubstituted forde Freita Couto Júniorat 87'minutes
- 92de Freita Couto Júnior
- Alexandros Dimitropoulos
- Shots on Target