IPL leader Sepahan beat Saipa 2-1 in its home game. Karim Ansarifard put the visiting team into the lead in the 57th minute but Jalal Hosseini equalized the match 12 minutes later.
With ten minutes remaining, Saipa player Majid Ayyubi scored an own goal.
Reza Nasehi from Sepahan was sent of in the 90th minute.
Relegation-threatened Mes grabbed a 1-1 draw at Tabriz against Shahrdari while Sanat Naft defeated Rah Ahan 2-1 in Abadan.