The Dolphins were no match for the Ravens, who took early control, scored touchdowns on their first four drives and cruised to victory at Hard Rock Stadium on Sunday.
Dolphins quarterback Fitzpatrick was asked about the team's performance during his post-game news conference.
"It's never good to be embarrassed like that, especially at this level," Fitzpatrick told reporters. "What we had talked about: nobody is going to feel sorry for you and your situation. That's what happens.
"You go out there and if you don't execute, you're going to get beat bad like that. Obviously we need to play better, which is an understatement."
Fitzpatrick, 36, completed 14 of his 29 passes for 185 yards with a touchdown and an interception in the loss. He was replaced by Josh Rosen late in the game with the outcome already decided.
"Obviously we all had a much different outcome dreamt about in our head of how it was going to go today," Fitzpatrick said. "I think the only thing we can do moving forward is continue to try to string good practices together and continue to keep a positive attitude, and in doing that, hope that the results follow."
Miami head coach Brian Flores said the ugly loss "starts with" him.
"We talked about playing penalty free," Flores said. "We talked about having a clean operation, alignments, assignments, trying to play turnover free, and we didn't accomplish any of that. We talked about starting fast. We didn't accomplish that.
"But the good thing is, like I just said, we'll come back tomorrow. We'll make the corrections. We'll try to get this team better on a daily basis, and that's all we can do."
The Dolphins will host Super Bowl champions the New England Patriots in week two.