They broke long-standing 39th annual New Zealand secondary schools championships at the Newton Park track.
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.
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.
Greene (17), named the athlete of the meeting, secured the tough senior girls middle-distance double when she won the 1500m in 4min 21.39sec and the 3000m in 9min 23.40sec.
Greene lowered the records former New Zealand representative Sonia Barry set in the 1980s. Barry's 1500m time, set in 1985, was lowered by 4sec and the 3000m time, run in 1986, by 10sec. Greene met the A qualifying standard for the world junior championships in both the 1500m and 3000m.
Both Otago athletes are coached by Jim Baird.
