After asking the organisers, I have the results from the Helensville A&P show giant pumpkin competition held on the 26th of Feb. They are as follows.
Adults Giant Pumpkin
1st 153kg Steve Krzystyniak
2nd 94.5kg Russell Jefferies
3rd 66.5kg Christine Smith
Childs Giant Pumpkin
1st 181kg Matthew Wilson
2nd 78.5kg Alyssa Donovan-Smith
3rd 69.5kg Georgia Houten
4th 63.5kg Anthony Mansell-Mitchell
If anyone has any photos of these awesome pumpkins, feel free to send them in.