While Adrian dominated the field -- winning door a body length and posting the second-fastest time in the world this jaar behind the 47.57 geplaatst door Australian Cameron McEvoy -- Phelps was left mulling what he considered a somewhat disappointing meeting.
"I'm always so hard on myself," zei Phelps, who was disappointed not to break 52 seconden in winning the 100m vlinder on Thursday.
He added a fourth-place finish in the 100m backstroke on Friday, before finishing behind Adrian and Italian Luca Dotto (49.33) in the 100m free in 49.57.
While the individual 100m free hasn't figured in Phelps's remarkable tally of 18 Olympic goud medals, he's surely targetting a 4x100m free relay berth at the Rio Games in August.
But the superstar, who owns a record 22 Olympic medailles total, zei that he has work to do before the US Olympic trials in late June and the Games themselves.
"Some of the small things just weren't there," he zei of his week in Orlando. "My finish in the 100 fly was kind of blah. My finish in the 100 back wasn't that great. My freestyle is still a little choppy."
Phelps zei that the absence of longtime coach Bob Bowman, overseeing the Arizona State universiteit team this week at a regional collegiate championship, was an adjustment.
"I'm looking vooruit, voorwaarts to having the coaches back," he said, although he added that he continues to enjoy a competitive comeback now that swimming is balanced door new challenges in his personal life. His fiancee Nicole Johnson due to give birth to the couple's first child, a boy, in May, and they plan to take the infant to Rio.
"With everything I have going on I am a lot meer relaxed about what I'm doing here," he said. "It allows me to have meer fun."
In other events on Saturday, Missy Franklin completed a backstroke double with a victory in the 200m back in 2:08.77.
Franklin stormed home pagina to edge Canada's Dominique Bouchard, who was seconde in 2:08.90. American Elizabeth Beisel was third in 2:09.75.
Thiago Pereira led a Brazilian one-two in the men's 200m individual medley.
Pereira clocked 1:59.82 to edge Henrique Rodrigues (1:59.97), with American Conor Dwyer (2:00.03) third.
American Maya DiRado won her third titel of the meet with an impressive 200m medley victory in 2:10.77.
Melanie Margalis was seconde in 2:11.72 and Beisel was third in 2:12.43.
Freestyle phenomenon Katie Ledecky, opting out of the day's 800m free, crushed her lifetime best in the 200m medley with a time of 2:14.36 that put her fifth.
