ever in a single olympic busy a female swimmer. mckeon won the women s 50-meter freestyle in record time, less than an hour later got her seventh medal when he took the butterfly leg and helped the aussies win the relay with an olympic record time. track and field events are off and running. one of the most exciting every olympics is the women s 100-meter dash. on saturday, defending champ elaine thompson hurrah winning with a record time 10.61 seconds, an amazing come back after dealing with achilles injury. she d finished third at jamaican trials in the 100 and 200. shelley ann fraser-pryce took silver. shericka jackson taking third, giving jamaica the clean sweep in the race. the second time in the last four olympics jamaica swept the women s 100. the 100-meter dash, will coolest events. you get crowned the fastest person in the world in the