[3] Despite making his professional debut with the Scarlets in 2014, he departed the club in 2016 in order to gain experience and game time, as it was limited with competition in the scrum half jersey.
[2] Hardy subsequently joined RFU Championship club Jersey Reds, along with Scarlet teammate Regan King.
[15] Hardy was selected to start the following match against England, and scored a try as Wales won 40–24, securing the Triple Crown.
[16] After suffering a hamstring injury during the match, Hardy was subsequently ruled out of the remainder of the tournament, as Wales won the championship title.
[23] Hardy retained his place in the squad for the 2023 Six Nations, having been selected by returning head coach Warren Gatland.