In February, a jury found him guilty of two of five indecent assault charges.
Today, before Judge Robert Ronayne in the Auckland District Court, Parkin was imprisoned for one year and eight months.
Parkin shook his head during his sentencing and looked back at the public gallery sheepishly as he was led away to the cells.
"I note for the record that you shake your head, you continue to deny what you did," Judge Ronayne's voice boomed towards the now 66-year-old.
The former Black Stick star was accused of indecently assaulting young girls in Whangārei, Auckland and Coromandel between 1975 and 1983.
Eleven of the 12 jurors found him guilty on two charges, of which there was independent evidence, relating to the second of the three women. All the complainants' identities are permanently suppressed.
The second complainant said she was indecently assaulted by Parkin, then in his late 20s, at an Auckland home. On another occasion, when she was only 11, Parkin forced her to touch his erection.
She testified during Parkin's trial that she was sitting in a sleeping bag on a couch when the Olympian reached inside, under her clothes, and abused her.
The jury unanimously ruled that Parkin was not guilty on the charges relating to the two other women.
"Imprisonment is very much on the cards," Judge Ronayne told Parkin after the verdicts were read out.
An emotional victim impact statement from the second woman was read to the court today.
"When I was 11 years old, on the cusp of turning 12, you Arthur abused your role … and sexually abused me," she began.
"My parents entrusted me into your care, and I trusted you as one of the two adults in the house with me."
"You made me not only touch you but stroke you," she addressed Parkin. "I was 11, I was a child, and you were the adult."
She said Parkin had made the decision to abuse her and then "just brushed [it] off".
"Those decisions have influenced my life ever since," she said.
"Those decisions you made will continue to influence my life until the day I die."
The woman explained during her evidence that she initially declined laying charges against Parkin because it would likely break-up the Olympian's marriage.
"In the back of my head I thought 'what happened to me wasn't as bad as what happened to other people ... Just deal with it'. I thought I should just suck it up."
However, when she did come forward with her story she said she did so to protect other children, including her daughter.
"I had a civic duty to close the loop and to speak up," she said.
"I also looked at my daughter and thought 'that was me and I can't let that happen to anyone else.'"
Today, she said, she forgave Parkin.
"If I don't, all my years of fighting ... will go to waste".
"Her recollection is inaccurate from what actually happened," Parkin told the report's writer.
Judge Ronayne said Parkin's excuse was "ludicrous and untrue" and he has "no true remorse".
"I accept her evidence as to what happened as entirely truthful," the judge said.
Judge Ronayne appeared visibly disgusted by a letter of support for Parkin by Masterton District Council chief executive Pim Borren.
The letter was written under the council's letterhead.
In it, Borren said Parkin had "made a mistake many years ago and paid dearly for it".
Judge Ronayne disregarded Borren's words and was seemingly disturbed he used his public office to send it.
The first complainant alleged Parkin pushed his hand under her togs while at a Northland beach during the summer of 1975-76.
"He was my hero. Arthur Parkin - the great gold medallist. All the kids wanted to play hockey like him, I wanted to play hockey like him," she said during her testimony.
She told the court her alleged abuse was "a hidden, dirty little secret for most of my life".
"He knows the truth and I know the truth," she said.
On another occasion she alleged Parkin forced her to touch his groin.
She along with the second complainant were encouraged to lay a complaint with police by a person close to Parkin. An investigation began in 2016.
A third complainant came forward after seeing media reports about the allegations.
The third woman alleged Parkin indecently assaulted her on a tramping trip while they were sharing a bunk bed.
Parkin's defence counsel Arthur Fairley disputed all of the charges but accepted Parkin's partial admission to the fourth charge, in which Parkin had admitted he had asked the second complainant if she wanted to touch his exposed erection.
But Parkin claimed nothing further happened.
With his sporting achievements now tarnished, Parkin was removed as a Northland Legend of Sport after he was found guilty.
He had been one of New Zealand's most celebrated hockey players and a multiple Olympian, winning a gold medal with the men's hockey team in Montreal in 1976.
In 1990 he was also admitted to the New Zealand Sports Hall of Fame.
