Bahrain emerged victorious thanks to Romaihi's 69th minute goal as Helio Sousa's side avenged their 2-0 defeat in the group stage to Saudi Arabia, who were denied a fourth Gulf Cup title.
Saudi Arabia were the better side in the first half and should have opened the scoring after 11 minutes when they were awarded a spot-kick when Salem Al Dawsari was fouled inside the area by Jasim Al Shaikh, but Salman Al Faraj blasted the penalty over the crossbar.
Bahrain tried to hit back through counter attacks and Mahdi Al Humaidan had a chance on the right side but his shot went directly to Saudi goalkeeper Fawaz Al Qarni on 14 minutes.
The Saudi dominance continued but it was Bahrain who nearly finished the first half ahead as Mahdi Al Humaidan headed a corner towards goal but custodian Qarni made a fingertip save four minutes before the break.
Saudi Arabia continued to pressure in the second period and could have opened the scoring seven minutes after the hour mark but Yasser Al Shahrani's shot from outside the area just sailed past the left upright.
Bahrain took the lead against the run of play when a counter attack on the left saw Humaidan send a low cross which Romaihi (pictured above, left) finished with a volley from close range in the 69th minute.
Saudi Arabia pushed forward but failed to create any real chances as Bahrain added the Gulf Cup to the WAFF Championship they lifted in August.
Photos: AFP
