Padideh defeated Zob Ahan 2-1 in Isfahan’s Fooladshahr Stadium.
Hadi Mohammadi scored for the host in the 81st minute while Saeid Sadeghi (55th) and Yunes Shakeri (83rd) were on target for Padideh.
It was Padideh’s fifth win after suffering a 1-0 defeat to Persepolis in week 1.
In Tabriz, Tractor Sazi defeated Machine Sazi 2-1, Pars Jonoubi shared the spoils with Sepahan 2-2, Foolad lost to Saipa 2-1 and Paykan edged past Esteghlal Khuzestan 1-0.
Padideh remained top of the IPL table with 15 points, followed by Sepahan and Saipa with 10 points.