He followed his Olympic performance with a bronze medal for his third-place finish in the 50-metre freestyle (23.44), and a fourth in the 100-metre freestyle (51.64) at the 1985 Pan Pacific Championships in Tokyo. By the time the 1986 Commonwealth Games were held in Edinburgh, Stockwell had fallen back from his Olympic times in Los Angeles. He claimed a gold medal with his Australian teammates Fasala, Matthew Renshaw, and Neil Brooks in the 4×100-metre relay (3:21.58), and finished seventh in the 100-metre freestyle (51.61). He retired from competitive swimming in 1986. In December 1989, "The Age" newspaper recognized Stockwell as one of the three best Australian swimmers of the 1980s.