The announcement means the 2023 Pacific Games will have a new winner in the men's 100m and 200m.
In an exclusive interview with Fiji One on Monday, Tabakaucoro said the "decision was definitely a hard one" but one that he had been contemplating for over a year since competing at the Pacific Mini Games in the Northern Marianas last June, where he won gold in the 100m.
The 30-year-old, who holds the Pacific record in the 100 and 200 metres events, represented Fiji at the Tokyo Olympics in 2021.