Harrison has allowed just one earned run over 11 innings spanning his last two starts for Double-A Richmond, posting a 17:7 K:BB in the process. All told, he has a 4.44 ERA, 1.41 WHIP and 39:15 K:BB in five starts and 24.1 innings since being promoted.
Walks have obviously been an issue for the 20-year-old hurler since his promotion. He was sharper with his control in High-A, posting a 59:10 K:BB through 29 innings, but the higher level of competition in Double-A hasn't been chasing his pitches as much. Nonetheless, Harrison certainly brought his bat-missing ability with him to Richmond. He'll need to improve his strike-throwing to continue progressing toward the majors, but the southpaw has a starter's profile and the benefit of pitching for an organization with an excellent track record of developing arms.