Esteghlal edged past Mes 1-0 in Rafsanjan. Meysam Teymouri scored an own goal in the 52nd minute.
Sepahan also defeated Sanat Naft 4-1 in Isfahan’s Naghsh-e Jahan Stadium.
Reza Asadi was on target in the 13th minute and Arya Yousefi scored the second goal in the 30th minute.
Isa Alekasir scored twice in the 33rd and 50th minutes.
Sanat Naft forward Taleb Reykani pulled a goal back in the 79th minute.
On Sunday, Malavan will host Nassaji, while Persepolis face Gol Gohar in Tehran.
Tractor leads the table with 12 points out of six matches.