The Mariners first came away with a 23-25, 24-26, 25-20, 25-20, 15-9 victory over the host team before thwarting SJC, 25-17, 25-19, 19-25, 25-18.
Games resume on Jan. 8 with the Mariners looking for a sixth triumph when they play University of Assumption-Pampanga.
St. Jude College, which earlier whipped Gregorio Araneta University Foundation, 25-23, 25-11, 25-18, is now behind PMI with a 4-2 win-loss record. Manuel L. Quezon University bounced back from a loss to PMI with victories over Technological Institute of the Philippines, 25-14, 6-25, 25-22, 12-25, 15-2, and GAUF, 25-16, 25-17, 26-24.
The Stallions are now at third place with a 3-3 slate.
Central Colleges of the Philippines dropped TIP to fourth (3-2) with a 25-19, 25-15, 23-25, 25-18 verdict in this tournament backed by Deowhite, Gandour Philippines, Clover Chips, Oxygen, Negros Navigation, San Miguel Beer, Cali, No Drowse Decolgen, Pepsi, 97.9 Home Radio, Meg and Forward, Padi’s Point-Araneta and CAP Philippines.
GAUF’s twin losses had them slipping to fifth (2-3) with MMC, which got away with a 26-24, 25-18, 25-2 subduing of Trinity College.