Siso moved into the second round of the unisex 10-under division with Juan Gabriel Pena, a 6-0, 6-1 winner over Marvin Tipace; Leander Lazaro who whipped Jan Garcia, 6-1, 6-2; Dennis Alano. who routed Roman Floreza, 6-1, 6-2; Noel Agra, who demolished Kevin Mamawal, 6-0, 6-1; Juan Pocholo Macalino, who downed Calvin Canlas, 6-1, 6-1.
Sarah Lim blanked Ana Patrimonio, 6-0, 6-0; Zhane Quitara ousted Chynna Mamawal, 6-2, 6-0; and Remar Hernandez tripped Martin Libao, 6-2, 6-2.
Atienza advanced in the boys 12-under class along with Rodell Navarro, who blasted Jacob Lagman, 6-1, 6-2; Jose Opulencia, who won over Carlos Espidido, 6-2, 6-0; Homer Perez, who blanked Joseph Baldonado, 6-0, 6-0; Carl Pabalan, who whitewashed Cyril Camporedondo, 6-0, 6-1; and James Canete, who nipped Mark Balce, 6-1, 6-4.