Reece Walsh strengthened his claim to Australia's fullback spot for next week's World Cup semi-final.
Australia defeated the Cook Islands in its final match before the World Cup finals.
Walsh was Australia's most dangerous player, with four try assists, two line breaks and two line-break assists.
Teddy had played well against Fiji the previous week, but Walsh's display makes him unlikely to lose the No. 1 jersey.
Walsh had also been decisive in Australia's opening game against the Kiwis.
Several big-name players performed strongly, while a young player was again the standout.