MANILA--Remedy Rule finished second in her qualifying round heat of the Tokyo Olympics women's 100-meter butterfly event on Saturday night.
Playing in Lane 3 of Heat 2, Rule clocked in at 59.68 seconds, some 0.3 second behind heat winner Ellen Walshe of Ireland.
Despite the strong performances, both Walshe and Rule missed out on the semifinal cut as the 16 fastest swimmers after Round 1 regardless of whatever heat they played in would qualify.
Walshe and Rule ranked 24th and 25th respectively out of 33 swimmers as they missed the Top 16 by a full second.
Zhang Yufei of China and Emma McKeon of Australia ruled the preliminary phase after finishing tied for first place in Heat 5 at 55.82 seconds.
Defending champion and world record holder Sarah Sjoestroem of Sweden came in third overall after topping Heat 4 at the time of 56.18 seconds.
McKeon's teammate Brianna Throssell earned the last semifinal spot after clocking in at 58.08 seconds.
Rule's stint in the Tokyo Olympics is not yet over as she will compete in the 200-meter fly next week.
Follow him on Twitter: @IvanSaldajeno