Goodwin beat Australian-based New Zealand Commonwealth Games representative Richard Girvan 25-16 in the final on the North East Valley green.
Goodwin (34), who works for Lion Nathan in Auckland, has been playing bowls for 20 years and the $6400 he won was the biggest pay cheque he has received.
He lost the chance of a higher payout a few years ago when he lost the final to former World Bowls champion Rowan Brassey (North Shore) when he was playing for a car.
The prize pool for the event was raised from $15,000 to $20,000 this year to celebrate the 20th year of the event.
Each year, Canadian bowler John Parson draws a caricature of the winner to place on the clubroom wall at the North East Valley club.
Goodwin will be the 14th bowler to have an honoured place on the wall.
The list includes 10 bowlers who have won medals at major international events, such as the Commonwealth Games or World Bowls.
Five have won a world title or a Commonwealth Games gold medal.
"It's pretty cool to be added to that list," Goodwin said.
"There are some pretty good guys up there and everyone looks at it when they come to the club."
Goodwin represented New Zealand at the Melbourne Commonwealth Games in 2006 and has won two national titles.
He is noted for his accurate draw bowls and he did not disappoint in the final.
He ground Girvan down with his accuracy and consistency.
"I knew I had to get them close and keep out the bad bowls," Goodwin said.
"I'm not a big driver or runner."
"He drew well and I struggled a bit," Girvan admitted.
The statistics of the game illustrate the accuracy of Goodwin's draw bowls.
He scored nine singles and gained seven touchers.
Girvan had four touchers.
Goodwin's most telling blow came on the 20th end when he gained touchers with his third and fourth bowls and moved the jack sideways with his last bowl to take three shots and a decisive 21-14 lead.
"I was still not confident I had the game won," Goodwin said.
"In other games I had big leads but the other guy kept coming back."
The accuracy of Goodwin's draw bowls forced Girvan to drive more than he wanted.
He hit six of his nine drives but the effort led to him losing his draw weight and accuracy.
A missed drive on the sixth end proved costly for Girvan when he took out his own bowls and gifted four shots to Goodwin, who led 9-4.
Girvan did have his rewards with his driving.
He gained a fluke three shots on the 14th end, when he got a lucky wick off a side bowl that moved the jack sideways.
Goodwin drove sparingly and was on target with three of his four power shots.
He took the lead on the fifth end and never surrendered it.
He led 13-7 after 10 ends, 15-9 after 13 and 18-13 after 18 ends.
In the semifinals, Goodwin beat Dan Delany (Auckland) 25-16 and Girvan beat Jamie Hill (Auckland) 25-16.
In the all-Canterbury plate final, Andrew Kelly beat Andrew Curtain 21-13.