Both countries claimed five gold medals at Signal Hill.

New Zealand's Anton Cooper continued his dominant ways in the elite men's cross-country event, proving why he is one of the best in the world by claiming a fifth consecutive Oceania title.

Leading from the start, Cooper never looked back as he raced to victory in 1 min 23.5sec.

Australia's Cameron Ivory finished second in 1:23.47, while compatriot Daniel McConnell, a former winner, came third in 1:24.45.

"That is five Oceania titles in a row so that is a huge achievement and means a lot," Cooper said.

"It is not something I ever considered I could achieve.

"It was a demanding course.

"I was really surprised to get the lead on the first lap because it's my first race in four months and difficult to gauge where I would be."

Australia's Rebecca McConnell, last year's world bronze medallist, was too strong in the elite women's cross-country event, despite a mechanical on the opening lap.

She successfully defended her crown in 1:26.33, securing the title for the fourth time in her career.

The silver medal went to New Zealand's Josie Wilcox in 1:27.35, while Australia's Holly Harris rounded off the podium in 1:37.30.

New Zealand's Sam Blenkinsop was in fine form in the elite men's downhill event, claiming his third Oceania crown and his second on the Signal Hill course, after winning two years ago. 

Stopping the clock in a time of 2:36.41, Blenkinsop was 3.147 seconds clear of his closest rival and fellow countryman Sam Gale.

Australia's Dean Lucas was a further 1.263 seconds behind in third place.

In the elite women's downhill event, not even a crash in the seeding run could stop Australia's Sian A'Hern from triumphing as she mastered the course in 3:22.830, 2.873 seconds clear of silver medallist Shania Rawson of New Zealand.

New Zealand's Ashley Bond ranked third in 4:00.570. 

In the women's under-23 cross-country event, Australia's Zoe Cuthbert, who claimed the under-19 title last year, made a strong step up from the junior ranks to add the Oceania title to her name in 1:11.26.

The silver medal went to New Zealand's Sammie Maxwell in 1:12.28, while compatriot Jessica Manchester came third in 1:17.44.

Cameron Jones led a one-two finish for New Zealand in the men's under-23 cross-country event in 1:28.07.

Josh Burnett was the runner-up in 1:28.20, with Australia's defending champion Matthew Dinham settling for the bronze medal in 1:30.56.

Australia and New Zealand shared the under-19 cross-country titles, with New Zealand's Ethan Rose emerging on top in the men's event in 1:14.24.

Australia's Domenic Paolilli finished second in 1:16.31 and New Zealand's Jacob Turner came third in 1:19.14. 

Australia's Isabella Flint was too strong in the women's event, winning it in 1:17.09. 

She beat fellow countrywoman Phoebe Thompson, the runner-up in 1:19.44, with New Zealand's Zoe Nathan completing the podium in 1:26.46.

Australia's Luke Meier-Smith took the men's under-19 downhill title with the sixth fastest run of the day across all categories, posting a time of 2:43.730.

New Zealand's Blake Ross and compatriot Oliver Elkington were the other medallists in 2:48.913 and 2:50.677, respectively. 

The under-19 women's downhill gold medal went to Jessica Blewitt in an all-New Zealand podium.

She clocked a time of 3:23.033 to finish ahead of Caitlin Titheridge, second in 3:48.523, and Kalani Muirhead, third in 3:52.487.

The action in Dunedin was spread across two days.