From Baseball America:
A 6-foot-4, 190-pound righthander, Renz will appeal to many analytically inclined teams thanks to the combination of his size, age and spin characteristics. His performance was up-and-down throughout the summer and fall, but he did strike out five batters and walk none in a solid Area Code Games outing, while pitching in the low 90s and flashing a decent breaking ball. Overall Renz needs to add more power to his pitch mix. He typically sits in the upper 80s and has been up to 92, but his fastball plays up and gets more whiffs than expected and he’s thrown both a slider and curveball that have potential but blend together. He’s occasionally mixed in a low-80s changeup but the pitch needs plenty of work. Renz is committed to St. John’s.