"He looked good," Cardinals manager Mike Matheny said. "With him, it's more of the recovery and how he feels following [throwing]."
The long-toss session, which also included some flat-ground throwing, comes two days ahead of when the team said the righty would resume work on his road to recovering from a shoulder injury that has sidelined him since Spring Training.
"I'm excited for him whenever something goes positive," Matheny said. "We also don't want to put the weight of the world on his shoulders, and all of a sudden, it turns into some sort of timetable. It's just a good day. We're happy about it."
Carpenter, who threw a batting-practice session last Friday in Kansas City, was expected to throw another session Monday afternoon in Miami. That plan was shelved when Carpenter woke up that morning and didn't feel like he had enough strength in his throwing shoulder, according to Matheny.
Matheny said Monday the plan was to give Carpenter a few days off until the team returns to St. Louis to see how his shoulder has responded and figure out the next step from there. Even after Wednesday's throwing session, the team will reconvene with Carpenter on Friday to determine what's next in the rehab process.
"We're going to go home, and then Friday, probably reevaluate what's going on and get back into what I was doing," Carpenter said. "I don't know if I'll throw a bullpen Friday or play some catch and then a bullpen on Saturday. We're just going to go ahead and reevaluate on Friday and see how I'm doing."