Mqabba registered a narrow win over Zejtun Corinthians in one of the three matches from the BOV First Division at the Centenary Stadium on Sunday.
Lamin Suma scored the only goal just before the end of the first half to give Mqabba precious points in the battle against relegation.
Zebbug Rangers claimed another three important points as they defeated Swieqi United 3-0 courtesy of Ryan Micallef on the 20th, a Hubert Vella penalty on the 47th and a goal by Clive Brincat on the 64th.
In another match, a Jean Pierre Mifsud Triganza penalty handed Pembroke Athleta a narrow win over Qrendi.
Sirens lead the way on 46 points, followed by Gudja on 39, Santa Lucia 35, Pembroke 29, Naxxar 27, Swieqi 26, Lija 26, Vittoriosa and Mqabba 25, Zebbug 24, Zejtun 23, San Gwann 19, Qrendi 17 and Marsa 5.