Rhys is an EVO Hockey sponsored player. He currently plays for Great Britain U23s and has variously represented England and Great Britain at U16, U18 and U21 levels. He is one of the most promising up and coming players in the country. In October 2015 he had international success with Great Britain U21s, winning the Sultan of Johor Cup in Malaysia. In 2017 he won the Player of the Tournament award, representing England at the U21 European Championships.
As a junior, he won 7 national championship titles with Whitgift School and was 1st XI captain.
Rhys has played in the National League Premier Division and European Hockey League (EHL) with East Grinstead HC. In the 2015/16 season he played his hockey with Durham University and was named in the National Hockey League North Conference Team of the Year.