 Strong's first major championship was the 1978 Commonwealth Games, in Edmonton, Canada where she got the silver medal.She went on to improve on that in the 1982 Commonwealth Games in Brisbane Australia, by getting the gold medal.Strong achieved a creditable fifth place at the 1983 World Championships with a wind-assisted time of 12.78 seconds, Great Britain's highest placing in the event until Tiffany Porter finished in fourth place in 2011.