In the match held at the Azodi Stadium in Rasht, a city in north of Iran, Jerkovic scored Esteghlal’s only goal after 37 minutes.
“I am not satisfied with the way we played in the second half. Esteghlal took advantage of its only chance and won the match,” newly appointed Damash coach Mehdi Tartar said.
Elsewhere, Naft beat Mes of Kerman 1-0 and slipped four points behind IPL leader Esteghlal.
Sepasi defeated Sanat Naft 2-0, Rah Ahan lost to Malavan 1-0 and Traktorsazi saw off Zob Ahan 2-1.