"I'm so glad to hear it can go ahead after moving into the traffic light system. I'm excited to go down there and see how it all goes," Cox said.
Sport Whanganui chief executive Danny Jonas said they were fortunate to have Cox in the fold.
"She has proven experience and a terrific track record. She understands what events like the Masters Games mean for our economy and sports clubs," Jonas said.
Former games manager Rachel Thompson has been appointed to the games trust so they can retain her event knowledge.
Whanganui District Council customer experience group manager Marianne Cavanagh has been appointed chairwoman of the trust, replacing Leighton Toy.
"The trust has done a fantastic job strengthening the financial position of the games. I look forward to working with my fellow trustees and continuing the positive growth," Cavanagh said.
The 2021 games in Whanganui offered 54 sports with 4850 participants, a 14 per cent increase on the 2019 event.
The economic benefit this year was $3 million, with $148,215 paid out to local sports clubs.