From NZ Secondary School Champs
Whyte (18) took 0.95sec off the senior boys 400m record that Sam Higgie (Palmerston North Boys' High School) ran in 1999.
His time of 46.91sec was a personal-best by 1.19sec and puts him second on the New Zealand senior men's ranking list this season. It was an A qualifying standard for the world junior track and field championships in Barcelona in August next year.
It is an Otago men's aged 18 and 19 record and just 0.34sec off the Otago senior men's record set by Cory Innes nearly six years ago.
Whyte, named as a senior male athlete of the meeting, also ran a personal-best 100m when second to Kodi Harman (Mount Maunganui College) in 10.89sec.