- Number: 254
- Position: Midfield Back, Wing
- Born: 18/03/97
- Height: 1.88m
- Weight: 103kg
- Province: Auckland
- Provincial Debut: 2015 v Taranaki
- Blues Debut: 2016 v Reds
- Blues Caps: 35 (SR 34)
- Test Caps: 13
- Test Points: 55
- Test Debut: 2016 v Italy
The fast and strapping midfield back or wing signed for the Blues for 2016 while still at school, joining his older brother at the Blues. Rieko was on the Blues radar for some years, both at Auckland Grammar School and part of the Blues Under-17 and Under-18 Development Squads. He earned national recognition and captained the New Zealand Secondary Schools team to victory over Fiji and Australia in 2014.
In January 2015, Rieko was selected to join his brother in the NZ Sevens, contributing two tries in the win over England in the final of the Wellington tournament.
Rieko play five times for the Blues in his debut season before joining the All Black Sevens to represent New Zealand at the Rio Olympics.
He has been outstanding for Auckland in the Mitre-10 Cup, with two hat-tricks of tries, and was selected for the All Blacks end of year tour.