In the preliminary rounds of the women’s 100m backstroke at the Paris Olympic Games, Ganga Senaviratne made a notable impression by winning her first heat. She completed the race with a time of 1:04.26. Despite her strong performance, Senaviratne did not advance to the semi-finals, finishing in 31st place out of 36 competitors. A total of 16 athletes qualified for the semi-finals in this event.