The 30-year-old playmaker, who was named in the World Series 'Dream Team' for the third year running, was a key figure as Fiji won titles in Cape Town, Hamilton, Hong Kong, London and Paris to secure the 2018/19 World Series title, their first since 2016.
Tuwai was also nominated for the player of the year award in 2017 and 2018, losing on both occasions to USA flyer Perry Baker, but Samisoni Viriviri is the only Fijian player to win the award back in 2014.