In 2016, he represented New Zealand together along with Warren Parry in the PDC World Cup of Darts. They played Scotland (consisting of Gary Anderson and Robert Thornton), and after breaking the throw with a 125 checkout, he and Parry led 3–1, before Scotland won four legs in a row to win 5–3. At the 2017 event, Harris and Rob Szabo were eliminated 5–2 by Belgium in the opening round.