San Miguel endured tense moments in the final minute but hung on to down Blackwater in overtime, 90-88, in the PBA's first-ever morning game in league history Tuesday at the Angeles University Foundation Sports Arena and Cultural Center.
Ahead by just one in the final 16 seconds, the Beermen prevented three game-winning tries from Mike Tolomia, Ron Dennison and Don Trollano to cling to their fourth straight win in the Philippine Cup.
Von Pessumal later split his free throws in the final four seconds, then Mike Tolomia missed a halfcourt heave to seal the win for San Miguel, now 5-2 in the standings.
Blackwater fell to 2-4 in the conference.