 At the World Championships in Tokyo Japan, Stewart recorded his personal best 9.96 s in the 100 m final, leading the race at the 50 m mark, and was equal first at 60 m. However his effort was only good enough for sixth place.He again recorded a sixth-place finish, in the final of the 4 × 100 m relay.Stewart ran the second leg and the team recorded a time of 38.67 s.

At the end of the season Stewart was the seventh ranked male 100 m athlete.