Mohammad Reza Soleymani scored for the host in the 65th minute and Jaloliddin Masharipov leveled the score for Esteghlal.
In Abadan, Foolad defeated Sanat Naft 2-0, and Havadar beat Shams Azar 2-1 in Tehran.
Esteghlal remains top with 36 points, three points above Persepolis. Sepahan is third with 31 points with two games in hand.