"As far as I know ... there's been a 380kg blue caught in 2009 ... but I think it was on 60kg tackle."
Phillips said the man who snagged the fish, Wade Wilson, was a first-time angler.
It was caught on a 37kg line, onboard Hot Lips skippered by John Giford.
Photos of the marlin onboard the boat show the huge scale of the catch, which took two hours to haul in.
Phillips said the club was looking through the history books to see how the monster catch stacks up, but he believed it was the second-biggest blue marlin ever caught in New Zealand.
The three men aboard the boat were stoked with their haul when they got back to shore, according to Phillips.
"John rang me on the way in ... they were just over the moon, they couldn't believe it. You can just tell how stoked the boys were.
"John had been fishing hard with no luck ... to hook a fish of this size, especially for a first-time angler ... and to land it in a little tinny like that. It's amazing really."
In January, a huge marlin weighing nearly 350kg and taking about three hours to catch was hauled in off the coast in Northland.