
Joelvis Del Rosario
Joelvis Del Rosario is a 20-year-old right-hander in the Pittsburgh Pirates system. Del Rosario previously pitched with the Pirates’ Dominican Summer League affiliates in 2018 and 2019 while putting up solid numbers. His 2021 season with the Pirates Gold has been the best.
Del Rosario has pitched 25.1 innings with a 3.55 ERA, but an outstanding 2.69 FIP, and 1.105 WHIP. Del Rosario has struck out 33.3% of all the batters he has faced so far, a 13.8% increase from 2019. His walk rate has also taken a decrease, going from 7.2% to 4.8%. Plus he’s given up just one home run.
Del Rosario could improve as well. His .355 batting average on balls in play is a tad high, especially considering his 49.2% ground ball rate and 16.4% line drive rate. He has a 34.4% fly ball rate, but his 42.9% infield fly ball rate is outstanding.
Del Rosario looks like a solid arm in the minor league system. He’s still very young and a raw talent. Though he’s put up the numbers and looks like he has the stuff to rise through the Pirates’ prospect system over the course of the next 2-3 years.