Drafted in the 18th round (558th overall) by the Boston Red Sox in 2009 (signed for $150,000).
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The top prospect in a thin Pennsylvania crop, Parthemore's biggest asset is his projectability. His 6-foot-5, 185-pound frame and his quick arm hint at his considerable upside, and he has reached 93-94 mph in the past, though he worked mostly in the 88-91 range this spring. Parthemore's 12-to-6 curveball currently rates as an average pitch and projects to be plus. He also shows good feel for a changeup, giving him a chance for three average or better pitches down the road. Characteristic of a cold-weather high school pitcher, Parthemore's command comes and goes, and he tends to have trouble getting over his front side in his delivery, but there are no major red flags in his delivery. Some scouts question his competitive fire, but he has top-three-rounds potential. At this stage, however, it seems more likely Parthemore will honor his commitment to Penn State, where he could develop into a first-round pick in three years.
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