"His previous best of 1.95m had been set at Wanganui Secondary Schools [competition].
"In Rarotonga, he jumped 1.99m - only one centimetre shy of Scott Newman's Collegiate record of 2m, set back in 1987."
On day one of the events, Attwell ran the 100m in 11.37s and threw the shotput 9.94m, both personal bests.
He also reached the 6.04m mark in long jump and completed the 400m in 50.86s.
Entering day two, Attwell finished the 110m hurdles in 17.47s, and then would make PBs in the remaining three events.
As well as the high jump, he threw 38.81m in the javelin, and finally completed the 1000m run in 2m 41.70s.
Watching was New Zealand team manager Jessica Sloan, a former athlete and Wanganui High School alumna.
"Great competition for Matt, ticked all right boxes, with doing everything right," she said in an email to McNab.