Australia defeated the Philippines 77-43 in the semifinals of the 2018 FIBA Under-18 Asian Championship at Stadium 29 in Bangkok on Friday.
The Australians will face New Zealand in the gold-medal game, while Batang Gilas will play China in a battle for bronze on Saturday.
It was the Philippines' first loss after 4 wins in a row.
AJ Edu led Batang Gilas with 9 points and 10 rebounds, while Kai Sotto tallied just 2 points to go with 8 rebounds.
After trailing just 14-12 in the first quarter, the Filipinos unraveled in the second.
Australia pressed the Batang Gilas ball-handlers and used its length to neutralize big men Sotto and Edu, and outscore the Philippines 30-8 in the second quarter.
At halftime, the lead ballooned to 44-20 as coach Darren Perry's squad cruised to victory, its fifth straight.
Australia routed the Philippines 46-16 in the second and third quarters combined.
The last time the 2 countries met, Australia won by default 79-48 after both sides engaged in a free-for-all in a 2019 FIBA World Cup qualifying game at Philippine Arena on July 2.
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