ESPN - Sanat Nafat assumed leadership of the Iran Pro League with the only remaining perfect record following a 2-0 win at Rah Ahan.
Goals in each half from Roohollah Arab and Omid Sharifinasab sealed Rah Ahan's third consecutive victory but Rasoul Mirtoroghi was dismissed for the visitors on the stroke of full time.
Defending champions Sepahan, meanwhile, are still searching for their first win of the season after they were held to a third straight draw at Foolad.
Hadi Aghily gave the visitors a 32nd-minute lead but were pegged back by Bakhtiar Rahman's 76th-minute effort Sepahan also had Ehsan Hajsafi sent off.
Peykan and Mes remain locked at the bottom of the table with both sides yet to get off the mark.
Hamid Kazemi's 10th-minute goal condemned Peykan to a 1-0 defeat at Pas Hamedan while Mes were undone by Pejman Noori's strike two minutes from time in a 2-1 loss at Malavan. Eder had earlier cancelled out Farzad Hosseinkhani's first-half own goal.
Elsewhere, Perspolis beat Saipa 2-1, Steel Azin and Naft Tehran drew 1-1 and Shahin FC and Saba Battery ended goalless.