MANILA-- Filipino tennis player John Bryan Otico and Japanese Seita Watanabe pulled off a 7-6(1), 6-1 upset win over seventh seeds Siddhant Bantha of India and Yeongseok Jeong of South Korea on Wednesday to reach the boys' doubles quarterfinals in the PTT-ITF Junior Tennis Championship at the National Tennis Development Center outdoor hard court in Nonthanburi, Thailand.
Otico and Watanabe will next meet third seeds Constantin Bittoun Kouzmine of France and Uisung Park of South Korea, who scored a 6-1, 6-0 victory over Japanese pair Kai Kawano and Ryoma Matsushita.
Otico only reached the second round of the singles competition. He beat wild card Kasidit Samrej of Thailand, 6-4, 6-0 in the first round but bowed to Russian Timofey Skatov, 6-4, 2-6, 3-6 in the next round.
Filipino Arthur Craig Pantino, who entered the main draw as a qualifier, also made it to the second round where he conquered Australian qualifier Stefan Storch, 6-7(4), 6-3, 6-1. He however lost to fifth seed Japanese Shini Hazawa, 4-6, 6-4, 4-6.
Meanwhile, Taiwanese Chun Hsin Tseng and Chinese Bu Yunchaokete eliminated top seeds Shinji Hazawa and Naoki Tajima of Japan, 7-6(5), 6-7(3), [10-7] in their second round match.
Tseng and Yunchaokete will be up against Australians Chase Ferguson and Benard Bruno Nkomba, who stunned eighth seeds Keenan Mayo and Timothy Sah of the United States, 6-4, 6-2.
Also advancing were Palaphoom Kovapitukted of Thailand and Jakub Paul, who scored a 6-3, 6-2 win over fourth seeds bang Shuo Yin of Taiwan and Lingxi Zhao of China.
Kovapitukted and Paul will face sixth seeds Blake Ellis of Australia and Finn Reynolds, who defeated Thailand's Akanil Pumjit and Vorachon Rakpuangchon, 6-1, 6-1.
Second seeds Ondrei Styler and Michael Vrbensky of Czech Republic prevailed over Japanese Taisei Ichikawa and James Kent Trotter, 6-4, 6-1, to arrange a quarterfinal showdown with fifth seeds Tomas Machac of Czech Republic and Timofey Skatov of Russia, who won over Fabian Marozshan of Hungary and Len Schouten of The Netherlands, 2-6, 6-3 [10-5].
Source: Philippines News Agency