Grant competed at the Seoul 1988 Paralympic Games, along with 16 other New Zealand Paralympians who collectively won 17 medals. Grant is tetraplegic and competed in Para athletics and won 2 bronze medals in discus and shot put.
Following the Paralympic Games, Grant competed at the ITF Wheelchair Tennis Tour and won the following titles: B doubles Australian Open, Quad singles and C doubles Japan Open, Quad singles NZ Open and C singles US Open.?
Grant lives in Christchurch and works at the University of Canterbury as a lecturer and teacher.