Halladay, who is expected to be sidelined for six to eight weeks, made 30 throws from 60 feet and will toss again on Sunday.
"He felt very good, probably better than he expected," said pitching coach Rich Dubee. "He feels much better. There has been a lot of work put in."
Dubee said that Halladay has been handling the rehab process well, but admits that his pitcher is such a competitor that he was impatient since the first day he was unable to throw.
Manager Charlie Manuel said that Halladay has remained quiet on the bench, frustrated that he's unable to help the team. Although Halladay isn't scheduled to return earlier than expected, Manuel believes the fact that he has thrown already is encouraging.
"That's definitely a good sign," Manuel said. "It's good to get him out there. Doc is definitely ready to start throwing the ball and using his arm."
But Manuel also cautioned that the Phillies will be very careful about "turning him loose."
Halladay, a two-time Cy Young Award winner, hasn't pitched since May 27, and he only threw two innings before being removed with soreness in his shoulder.
The 35-year-old has thrown 72 1/3 innings this season and has a 4-5 record and 3.98 ERA. Halladay hasn't had an ERA that high in a single season since posting 4.20 in 2004, as a member of the Blue Jays.
Halladay traveled with the team to Toronto -- where he began his Major League career. The right- hander spent parts of 12 seasons with the Blue Jays and won his first Cy Young with them in 2003.