 After gradually improving his three-point shooting throughout his career, Collison led the league with a career-best 47% 3-point percentage in 2017–18.On December 10, 2018, in a 109–101 win over the Washington Wizards, Collison had 17 assists, his highest single-game total with Indiana.He ended the 2018–19 season with averages of 11 points and six assists.