Adams, who was eligible to come off the DL on Tuesday, threw for about 10 minutes and said he was encouraged by how the injury responded.
"I had no restrictions and I felt totally confident," Adams said. "[The injury] wasn't in the back of my head. I was able to let go of the ball and able to locate a lot better today than I have been the past two [sessions]."
Padres manager Bud Black said Adams likely will throw a simulated game later this week instead of heading to the Minors, as Class A Lake Elsinore begins a series at Visalia on Friday.