Katie Ledecky continued her build up to the Tokyo Olympics with a 400m freestyle victory at the Mission Viejo Pro Swim Series in 3min 59.25sec. The US freestyle great, who won the 200m free on Friday in a world-leading 1:54.40, notched the 20th career performance under the four-minute mark. "It's always good to get under four," Ledecky said. "that one probably didn't feel as good as some of my other swims this week so far, but I'm more than happy with the time." 

Ledecky finished comfortably in front of Olympic bronze medallist Leah Smith (4:06.37) with Halie Flickinger (4:08.05) third. World record-holder and 2016 Olympic gold medallist Ryan Murphy won the men's 100m backstroke in 53.11sec, ahead of Spain's Hugo Gonzalez and American Daniel Carr. Gonzalez powered home with a strong second 50m, but settled for second in 53.76 ahead of his University of California teammate Carr (53.83). Unlike some of the elite swimmers finding the morning finals -- instituted for this meeting to mimic the Tokyo Olympic schedule -- strange, Murphy said he enjoyed it.