Aljun Melecio waxed hot from the 3-point area, going 5-of-7, to finish with 18 points, while Justine Baltazar recorded a double-double with 16 points and 14 rebounds that went with three blocks for the Green Archers, who upped their mark to 2-1.
The Archers put the game away in the third quarter where they widened the gap to 20, 57-37, after a basket by Santi Santillan with 1:49 remaining.
The Red Warriors relied heavily on Alvin Pasaol anew. The explosive forward had 20 points on 8-of-20 from the field, four days after dropping 36 points in a 90-76 loss to league-leading Adamson on Wednesday.
UE, which struggled with a 31-percent shooting, remained the only winless team at 0-3.
Encho Serrano and Jollo Go added 11 and 10 points, respectively for DLSU.
Earlier, Far Eastern University banked on a strong start to dump University of the Philippines, 89-73.
Five Tamaraws scored in double figures, led by a perfect offensive game from Prince Orizu, who had 15 points on 7-of-7 shooting from the field.
Arvin Tolentino scored 13 off the bench while Wendell Comboy added 12 points and five rebounds for the Tams.
FEU, which posted its second win in three outings, scored eight unanswered points to start the game and never trailed.
The scores:
First Game
FEU 89—Orizu 15, Tolentino 13, Comboy 12, Parker 11, Iñigo 11, Cani 8, Ebona 8, Tuffin 5, Stockton 3, Gonzales 2, Escoto 1, Bayquin 0.
UP 73—Gomez de Liaño Ja 15, Gomez de Liaño Ju 13, Manzo 11, Desiderio 10, Akhuetie 9, Prado 8, Vito 3, Murrell 2, Lim 2, Jaboneta 0, Tungcab 0, Gozum 0, Dario 0, Spencer 0.
Quarters: 25-13, 49-35, 69-46, 89-73
Second Game
LA SALLE 82—Baltazar 16, Melecio 16, Serrano 11, Go 10, Caracut 9, Santillan 6, Dyke 5, Bates 3, Manuel 2, Montalbo 2, Corteza 2, Capacio 0.
UE 72—Pasaol 22, Varilla 14, Manalang 11, Bartolome 6, Maloles 5, Cullar 4, Gallardo 4, Acuno 2, Strait 2, Lacap 2, Antiporda 0, Beltran 0, Guion 0.
Quarters: 21-14, 39-27, 59-45, 82-72