"We made it as a team, we made it as a country. This is for us.
"I did this for New Zealand and Samoa - all I can say is thank you."
Joseph Parker talks to Newstalk ZB's Tony Veitch
Parker admitted that the fight was closer than he would have liked, with the excitement and pressure surrounding the event playing on his mind.
"I started really slow," Parker said. "I let him set the pace in the beginning.
"Usually I'm the dominant one, but that's why this was a title fight. We are both good fighters and he used experience to dominant at the start.
"I've learned that I can dig deep and I can come back when I'm down on the board."
The youngster now looks forward to a much needed break before he'll look ahead to unifying the heavyweight division.