Markov said it was an "unreal" experience - and only his second ever time playing a marlin.
His first strike - the fish got off just as they got it to the boat - was just three weeks ago on board the 16.8m (55 foot) Ocean Monarch, skippered by his girlfriend's dad, Stewart.
They headed out again this weekend for the club's All About Construction Game On Tournament.
Stewart said they left at 5am on Friday and motored east out to the back of White Island to start trawling. It was Markov's turn in the seat when the line went off about 1.20pm.
"I just buckled in and held on for the ride."
He played the fish for an hour, getting it to within 150m of the boat when the line dropped.
Markov was worried he had lost it but Stewart, who said he had seen more than 100 marlin catches in 22 years of recreational game fishing, recognised the signs that the fish had died.
For the next couple of hours they painstakingly manoeuvred the boat back and forth so Markov could take in the line and draw the marlin in.
Markov said they did not know how big the fish was until they got it to the boat and pulled in the "massive" head.
"It just kept coming and coming."
It took all four of them to haul it aboard before they could begin the long motor back to Tauranga.
Stewart said the marlin was now "in the smoker" to be divided among friends and family.
It was Ocean Monarch's second marlin of the summer and the biggest he had seen caught.
"It's a once in a lifetime fish."