"It felt really good," Holland said. "I was able to make all of my pitches. I didn't execute everything, but I never do."
Holland also reported all the discomfort from the injury had vanished.
Royals manager Ned Yost is hoping Holland will be ready by Tuesday, when he is eligible to come off the disabled list.
"We'll have to wait and see if any issues come up tomorrow after this," Holland said. "But I'm pretty confident I'll be ready."
Jeffrey Flanagan is a reporter for MLB.com. Follow him on Twitter at @FlannyMLB. This story was not subject to the approval of Major League Baseball or its clubs.