The Hawke's Bay Secondary Schools 2016 Male Athletics Athlete of the Year, Palmer was a convincing winner of his 5kg shot put division at the weekend's Potts Classic Meeting.
He finished with 18.20m. His nearest rival threw 12.39m.
"I had a fair idea I could win the division but I really wasn't looking at the winning margin. I prepare to focus on the distances I hope to achieve. I have a personal best of 19.42m in training, I just have to get it out there in competition," Palmer explained.
Since he was 14 Palmer has competed in the under-18 shot put and hammer events at the New Zealand championships. In 2015 he was fourth in both events and last year he won bronze in the shot put and was fourth in both the under-18 hammer and under-20 shot put events.
Until March last year Palmer was coached by his father Bob, who did field events during his days at Karamu High.
"We sort of stumbled our way through things," Palmer recalled.
For the past 11 months Palmer has been coached by Christchurch-based former Australian athlete Dale Stevenson.
Palmer gets regular tips from Stevenson, who also has Olympian Tom Walsh in his stable, and travels south for sessions with him every three months.
Next month Palmer will tackle the Big Shot event in Christchurch where he will compete in the under-20 division, which will feature some top Aussie competitors.
Last year Palmer broke the Hawke's Bay-Gisborne under-17 hammer record of 53.42m which had stood since 1981 with a 59.42m throw.
"I would have done the hammer at the Potts Classic but they didn't have it there. When I go overseas I'm just going to focus on the shot put because that's what I'm likely to do when I get older so I might as well get used to it now," Palmer added.