Malaysia Tigers and Malaysia Leopards are currently second, but all four teams are assured of reaching the semi-finals with one more round of group matches to play.
In Kuala Lumpur, Malaysia Tigers defeated Thailand 3-0, but not before a scare for former world No. 1s Koo Kien Keat-Tan Boon Heong, who were taken the distance by scratch Thai pair Maneepong Jongjit-Patiphat Chalardchalaem.
Many had expected them to have an easy time, but the young Thais showed no fear against their more experienced opponents and took the first game 27-25.
That was the signal for the Malaysians to up their game and they took the next two games 21-9, 21-16 to give Malaysia an unassailable 2-0 lead.
“This was our first game of the tournament and I took some time to warm-up,” said Kien Keat. “We got better as the match progressed and managed to pull out a win.”
Earlier, Hafiz Hashim, like Kien Keat-Boon Heong, a former All England champion, was stretched by Boonsak Ponsana before claiming a 21-19, 21-16 victory in the opening tie.
Liew Daren, who is the new Malaysian No. 2, then thrashed Suppanyu Avihingsanon 21-14; 21-18 to give the hosts a 3-0 victory.
Indonesia Rajawali defeated Philippines 3-0 with Tommy Sugiarto outplaying Paul Jefferson Vivas 21-13, 21-8, Angga Pratama-Ryan Agung Saputra hammering Mathias Boe-Ronel Estanislao (above), 21-16, 21-7 and Hayom Rumbaka beating Antonio Benjamin Gadi (right), 21-9, 21-18.
Indonesia Rajawali and Malaysia Tigers have four points each with the former taking top spot as they have a 12-0 games record as opposed to a 12-1 record for Malaysia.
Over in Jakarta, Zulfadli Zulkifli was the hero for the Malaysia Leopards as he tamed Nguyen Hoang Nam in three games to help them to a 2-1 victory over Vietnam in a Group J match.
The world and Asian junior champion, who lost concentration in the second game after disputing some line calls, eventually carved out a 21-19, 16-21, 21-14 victory to hand the Malaysian team a place in the semi-finals.
Earlier, Misbun Ramdan Misbun suffered a 10-21, 15-21 defeat to Nguyen Tien Minh before Ow Yao Ha-Chooi Kah Ming levelled the match by beating Bui Bang Duc-Dao Manh Thang 21-8, 21-8.
Joining the Leopards in the final four are hosts Indonesia Garuda, who trounced Singapore 3-0, meaning their match with Malaysia tomorrow will decide the group champions.
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Indonesia Garuda 3 Singapore 0 (Taufik Hidayat bt Robin Gonansa 24-22, 21-13; Hendra Setiawan-Markis Kido bt Terry Yeo-Yi Liu 21-12, 21-16; Sony Dwi Kuncoro bt Huang Chao 21-19, 21-6)
Malaysia Leopards 2 Vietnam 1 (Misbun Ramdan Misbun lost Nguyen Tien Minh 10-21, 15-21; Ow Yao Ha-Chooi Kah Ming bt Bui Bang Duc-Dao Manh Thang 21-8, 21-8; Zulfadli Zulkifl bt Nguyen Hoang Nam 21-19, 16-21, 21-14)
Malaysia Tigers 3 Thailand 0 (Hafiz Hashim bt Boonsak Ponsana 21-19, 21-16; Koo Kien Keat-Tan Boon Heong bt Maneepong Jongjit-Patiphat Chalardchalaem 25-27, 21-9, 21-16; Liew Daren bt Suppanyu Avihingsanon 21-14; 21-18)
Indonesia Rajawali 3 Philippines 0 (Tommy Sugiarto bt Paul Jefferson Vivas 21-13, 21-8, Angga Pratama-Ryan Agung Saputra bt Mathias Boe-Ronel Estanislao 21-16, 21-7; Hayom Rumbaka bt Antonio Benjamin Gadi 21-9, 21-18)