The sevens competition at the Games started yesterday. New Zealand made a perfect start to their campaign with a 52-0 win against Zambia in the opening match.
The team was to play Kenya and Canada in the remaining pool matches last night.
Stanaway was included in the travelling reserves after Joe Webber, who was a member of the 2014 Commonwealth Games silver-medal winning team at Glasgow, withdrew from the squad with an undisclosed injury.
According to Stuff.co.nz, Webber was replaced by Akuila Rokolisoa, who made an impressive debut for the All Blacks Sevens in Hong Kong last weekend.
Rokolisoa’s promotion to the squad from travelling reserve means Stanaway will take over the travelling reserve role.
The 28-year-old Stanaway broke into top rugby competition after making his debut for the senior Auckland rugby team in 2009 against Counties Manukau in a pre-season game.
He went on to represent the Bay of Plenty rugby union in the provincial competition in 2014.
Stanaway is currently part of the All Blacks Sevens squad playing in the HSBC Sevens World Series.
He also captained the Cook Islands at the 2008 IRB Junior World Championship.
The following year, he was selected for the New Zealand national under-20 rugby union team which won the 2009 IRB Junior World Championship held in Tokyo, Japan.