[4] He was picked up by Sacramento Express for the inaugural PRO Rugby league in the United States.
[6] He made his competitive debut for Glasgow on 28 October 2016 against Benetton Treviso at Scotstoun Stadium.
[7] On 25 January 2017 it was announced that Haupeakui was released from Glasgow Warriors to return home to the US for family reasons.
[8] He was called up to the United States national rugby union team in the summer of 2016.
[9] In 2019 he played rugby league for the San Francisco Savage vs Los Angeles Mongrel.