"He said he felt great and averaged about 91-92 mph," manager Don Wakamatsu said. "He's going to throw Thursday in Everett [Wash.] and we'll try to extend him a little bit with two innings and then reevaluate at that point."
Kelley, a key piece of the bullpen, has been on the 15-day disabled list with right elbow inflammation since June 25, retroactive to June 16.
"It went good, real good," Kelley said. "It was nice. It was exciting. I just tried to get my work in and throw my pitches. It went as good as I could expect."
Kelley said it's just a matter of building his arm strength back to where could throw on back-to-back days.
"Being in a situation where it actually mattered, rather than bullpens or guys stepping in, was good," Kelley said.
Kelley had a 3-1 record and 3.96 ERA in 22 relief appearances.