Unlike many high school pitching prospects, Armstrong is less of a power pitcher and instead is seen as a "refined" pitcher with good command.
Armstrong in on twitter. Follow him @markarmstrong12
Mark Armstrong, P, HS, 30/55: good athlete. Fresh arm. Could jump up
Armstrong is a strong, athletic right-hander from just outside Buffalo. While his present stuff is good, it isn't as enticing as his upside of having three at least Major League-average offerings. Armstrong's fastball sits around 90 mph and he mixes in a hard, downer curveball and changeup. Scouts think he has the potential to improve thanks to clean mechanics and his 6-fooot-3, 200-pound frame. Despite playing football and hockey in addition to baseball and not having as much game experience as his Southern counterparts, Armstrong already earns high marks for his pitchability. He is committed to Pittsburgh.