Top seed Jay Lin Gibson of Canada defeated qualifier Puchit Sukjai of Thailand, 6-2, 6-2, to reach the boys’ singles quarterfinals of the Coca-Cola Philta International Juniors on Wednesday at the Rizal Memorial Tennis Center.

Gibson will next meet sixth seed Koki Nara of Japan, who rallied past Filipino John Kendrick Bona, 4-6, 6-2, 6-2.

Second seed Hao-Yu Lin and fourth seed Xiao Feng Zhou of Chinese Taipei also made it to the next round along with fifth seed Filipino Miguel Iglupas.

Hao-Yu outplayed Ethan Matthew Koh of Singapore, 6-4, 6-2, to advance against No. 8 Takahiro Kawaguchi of Japan, who survived Ryu Kotikula of Thailand, 7-5, 7-6 (3).

Zhou clobbered Shun Wakino of Japan, 6-1, 6-0, to forge a second-round showdown with No. 7 Connor McEvoy of Australia, who demolished Filipino Alfonso Javier Infante, 6-1, 6-0.

Iglupas, on the other hand, conquered Korean Min Seungjun, 6-1, 6-0, to advance against No. 3 Ren Matsumura, who blanked Perawat Sukjai of Thailand, 6-0, 6-0.

In the girls’ singles, Korean Park Seojin ousted fifth seed Naomi Hagi of Hong Kong, 7-5, 6-0, to reach the quarterfinals.

Also advancing were No. 1 Oh Jiyun and unseeded Choi Soo Young of Korea and No. 4 Yu Tsen Ko of Chinese Taipei.

Oh beat Shinar Zahra Shukayna Heriyadi Sunggoro of Indonesia, 6-1, 6-2; Choi defeated Pimlaphat Lim of Thailand, 6-2, 6-1; and Yu downed Du Ruihan of China, 6-1, 3-6, 7-5.

Meanwhile, top seeds Zhou and Hao-Yu, second seeds Matsumura and Yoshito Oda, third seeds Nara and Kawaguchi, and Fu Wang Choi of Hong Kong and Luke Jie Xi Ho of Singapore earned second-round berths in the ITF World Tennis Tour Juniors event.