"I felt good," he said. "It's a [simulated] game. There's just not a lot of adrenaline and stuff that goes into that. But I like it when the guys go up there and swing. [It] gives you a little bit of feedback one way or the other. It's hard to get a lot of feedback if the guys don't swing, just not a lot of things that correlate to a game unless you have a little bit of something going on."
Beckett said although he has not lifted weights since the incident, he feels that his overall condition and arm strength are where they need to be. The work he's been able to get in has allowed him to continue his regular progression.
"Yeah, I think I'm right there," he said. "I wouldn't have thrown that many pitches. I probably would have thrown less than that, in fact, unless I would have ran into a long inning and even then, they wouldn't have let me go over so many pitches in one inning.
"As far as workload, yes. As far as the other things that go into actually pitching in a spring training game, [those] are a little bit different, whether it be routine or stuff like that."
Beckett missed his scheduled start on Thursday. He experienced mild concussion symptoms after being hit in the left temple on Monday by an errant ball while shagging flies in the outfield during batting practice.
"I'm actually good," he said. "[But] I'm really sore on the left side of my head. My jaw and stuff like that are pretty sore. But I think I'm pretty much back to normal."
Beckett said Friday that earlier this week the concussion symptoms he was experiencing affected him while he was doing even the most mundane of tasks.
"I went to lunch a day and a half later and I couldn't do it," Beckett said. "I couldn't be away from my house without lying down and that's when I finally said, 'Hey, something is wrong here.'
"I was kind of resistant to even thinking I had a concussion. I tried to come in the next day and I was like, 'I'm ready to go back to work, let's get this over with' and everything like that. That day, when I went to lunch, I kind of had a little bit of a setback."
Beckett is expected to make his next start on Tuesday. The Red Sox have split-squad games that day against the Astros at home and in Jupiter, Fla., against the Cardinals.
Beckett is coming off a disappointing 6-6 season in which he had a 5.78 ERA with 45 walks.
Information from The Associated Press was used in this report.