 In March 2018, Purser and his 3x3 team consisting of fellow SBL players competed in the 3x3 WA Big Hustle event and won $2,500 and a spot in the Pro Hustle.The following month, he made his professional 3x3 debut and helped the team reach the final of the Pro Hustle in Melbourne, where they lost 21–15 to a team consisting of NBL veterans Peter Crawford, Jeremy Kendle and Anthony Petrie.