Scouting grades: Fastball: 55 | Slider: 55 | Changeup: 50 | Control: 45 | Overall: 40
Hatch missed 2015 with a sprained elbow ligament that didn't require surgery, then returned to lead Oklahoma State to the 2016 College World Series by working 23 straight shutout innings during the NCAA tournament. Chicago's top pick (third round) that June, he made his pro debut in high Class A the next year. He has been durable in two pro seasons but has had some unexpected issues with his control and pitch sequencing.
In college, Hatch's two main pitches were a low-90s two-seam fastball and a low-80s slider. The Cubs wanted him to focus on using a four-seamer and changeup to combat left-handers, but he took that too far in 2018 and got hit when he relied too much on the straighter of his two fastballs. On the positive side, his changeup was his best offering at times last year, and he showed the ability to sit at 93-94 mph and touch 96 with his four-seamer.
Hatch also has had difficulty avoiding barrels because his control has been spotty. He pounded the strike zone when he was the Big 12 Conference pitcher of the year in 2016 but finished second in the Double-A Southern League with 61 walks a year ago. He has better stuff than most of the system's starting pitcher prospects, but he could wind up as a middle reliever if he can't improve at locating and mixing his offerings.
That's from MLB.com