PERPETUAL held off Diliman College-Gerry's Grill on Tuesday, 71-65, for their breakthrough win in the 2019 PBA D-League at Paco Arena in Manila.
But DilimanCollege-Gerry's Grill battled back and tied the score at 50 at the end of the third.
Jefner Egan scored 25 points to lead Altas, who snapped a two-game slump.
Tonton Peralta added 13 and four boards off the bench and Jielo Razon contributed 12 points, six rebounds, and four assists.
"I thought we did very well in the first half because of our defense and I think that propelled us in our offense. But in the third quarter, it was a simple collapse on our part," admitted coach Frankie Lim.
The Altas took an early 17-4 lead that ballooned to 38-24 at the half.
Determined to get into the win column, Perpetual held on in the fourth with Razon putting the Altas ahead, 62-61 on a 3-pointer with 4:09 remaining before Peralta and Egan put on the finishing touches.
"Bago lang itong ginagawa namin eh. It's about them believing in what we're doing. I think I sold it to them very well naman," said Lim.
Beninese bruiser Kevin Gandjeto fired 20 points and 10 rebounds for the Blue Dragons, who fell to 1-2 in the Foundation Group.
PERPETUAL 71 -- Egan 25, Peralta 13, Razon 12, Charcos 8, Adamos 6, Solis 4, Lanoy 2, Pasia 1, Sese 0, Tamayo 0, Pido 0, Martel 0, Guissani 0.
DILIMAN-GERRY'S 65 -- Gandjeto 20, Cabanag 17, Bauzon 8, Brutas 7, Torrado 4, Mahari 4, Darang 3, Balagtas 2, Salazar 0, Bonsubre 0, Melendez 0, Coquia 0.
Quarters: 19-10, 38-24, 50-50, 71-65.