Engelsman represented her parental nation Australia, as a first-time Olympian, at the 2004 Summer Olympics in Athens, where she competed in the women's 50-metre freestyle, along with Lenton. In the final round of the competition, Engelsman barely out touched U.S. swimmer, four-time Olympian, and twelve-time medalist Jenny Thompson for a sixth-place finish by five hundredths of a second (0.05), with a time of 25.06 seconds.