What is the largest margin loss in basketball?

The largest lead margin in Basketball is the one done by the Philippine team

The Philippine team registered what could be the world's biggest lead in an international basketball game when it massacred Brunei Darussalam, 160-19, at the Ninoy Aquino Stadium on July 2, 2000. The 141-point lead could be the biggest for any Pinoy team since the Americans introduced basketball in the Philippines. During the game, the RP team limited the Brunei squad to only 19 points.