The course of the first half ended in a goalless draw, before the Syrian international Mardik Mardikian opened the scoring for Al Hamriyah 9 minutes after the start of the second round.
The same player returned within the 76th minute to add the second goal, while substitute Mohammed Ibrahim finished the hat-trick (90 + 3), before Abdul Rahman Mubarak scored the goal of saving face for Gulf (90 + 8).
Next week, Al Hamriyah will meet its host Al Dhafra for the second round.