As a 15 year old, Beckett represented Australia at the 1956 Summer Olympics in the Women's 100 meters backstroke where she was placed second in the second heat clocking at time of 1:14.8. She was placed eighth in the finals clocking a time of 1:14.7. Beckett also participated in the 1960 Summer Olympics at Rome in the Women's 100 meters backstroke and Women's 4x100 meters medley relay. The Australian relay team came second in the race.[1][2]