Joyce prepped at Loyola Academy. At the 2010 regional semifinal for Loyola, he stuck out eight and allowed a mere three hits in an 18-4 victory. He was Loyola’s No. 1 starter his senior year and a four-year letter winner. Joyce participated in the 2009 Plainfield South Prospect Showcase.

Coach Hartleb quoted, "He’s got a good work ethic, he works hard down in the weight room, he’s a competitor, he works hard in conditioning and he likes to be out on the mound with the ball in his hands,” Westray said. “Then with his innate skills he has, as I mentioned earlier, he brings a good package. We’re lucky to have him and we’re glad he’s on our staff.” - The Daily Illini 3/16/2011