She did, finishing the race in 2:19 in the warm Queensland conditions on Thursday. She was 30m ahead of the next athlete.
Wilson said from Australia yesterday she was exhausted afterwards but “super happy”.
She said she felt really good on Day 1 of the two-day event, achieving four personal bests.
She came second in the sprint hurdles and cleared 1.74m in high jump.
She threw the shot put almost 3m further than she had before and ran the 200m in 25.55s.
Day 2 wasn’t quite as smooth — her long jump of 5.27m and javelin distance of 27.7m meant she had plenty to do in the 800m to break the record.
“I knew I had to push it,” Wilson said.
Her father, Graham Wilson, said the New Zealand team lined the home straight and cheered her on to the record.
It has been a good week for her athletics combined events coach, Terry Lomax, who also watched Christchurch high-jumper Hamish Kerr clear 2.3m, equalling the national record.
Graham Wilson said recent strength training had paid off for his daughter and sprint training under Arna Majstrovic and surf lifesaving with Cory Hutchings had set her up well.
Graham Wilson said the Oceania champs had historically been a low-key affair but the International Association of Athletics Federations awarded extra points this year.
Among the other athletes were Eddie Osei-Nketia and Zoe Hobbs, who won the men’s and women’s 100m for New Zealand.
Hammer thrower Julia Ratcliffe threw a New Zealand and Oceania championships record of 71.39m and Jacko Gill improved on his own championship record in taking the shot put gold medal with a distance of 20.75m.