The book on David Parkinson says he has average stuff. The numbers from his first full pro season say something else. The Ole Miss alumnus led all of minor league baseball in ERA with a sparkling 1.45 over two levels of A-ball in the Philadelphia system. The 22-year-old left-hander from Virginia went 11-1, struck out 141 batters and walked just 35 in 124 1/3 innings. That doesn’t sound average. Parkinson was a top-drawer starter for the Rebels in 2016 and ’17, winning 11 games total with a 2.78 ERA in 2016 and a 3.39 in ’17. The Phillies picked him in the 12th round of the 2017 draft. He pitched well in limited innings that summer, then blossomed this season as a starter at low-A Lakewood and high-A Clearwater. He went 3-0, 1.24 in August for the Threshers, helping them make the Florida State League playoffs. He could be on the bump tonight in a decisive game. Parkinson is rated the No. 19 prospect in the Philadelphia system by MLB Pipeline. P.S. In the big leagues: Richton High product JaCoby Jones hit his 10th homer for Detroit on Wednesday and became the sixth Mississippian to reach double digits in home runs this season. Brian Dozier has just one bomb since Aug. 9 but still leads the All-Mississippi Home Run Derby with 20, followed by Hunter Renfroe (19), Tim Anderson (18), Mitch Moreland (15) and Corey Dickerson (11). Adam Frazier has eight.