Top seed Abhinav Manota won both of his men's singles matches as the Oceania Badminton Championships opened in Ballarat in Australia.
The New Zealand player, the 2018 champion, won his second round clash 21-10, 21-18 against Australia's Otto Zhao Xing De.
He then won his third round encounter too, beating another Australian in Tan Keng Hooi 21-4, 21-8.
Australia's second seed Anthony Joe also enjoyed two victories at Ken Kay Badminton Stadium, with his first success a 21-7, 21-8 win over Damus Matakino of the Cook Islands.
In round three he knocked out French Polynesia's Keivens Scilloux 21-9, 21-15.
The highest seed to exit was fourth-ranked Australian Keith Mark Edison, who was knocked out 21-12, 21-19 in round two by New Zealand's Edward Lau.
Last year's men's winner Oscar Guo of New Zealand is not defending his title this time around.
In the women's singles, Australia's top seed Chen Hsuan-yu began her quest for a sixth Oceania title in a row with victory.
She eased past Julie Wongsodjirono of New Calendonia 21-8, 21-3 in the second round, the only game she was required to play.
Second-seeded Australian Louisa Ma also won as she beat Tinabora Tekeiaki of Kiribati 21-9, 21-12.
New Zealand's Sally Fu, the third seed, had a tougher test before winning against Australia's Sydney Go, 21-17, 25-23.
Competition continues tomorrow.