Since the last installment in this series, there have been several notable promotions throughout the minor leagues.

To begin with, the Rockies promoted right-hander Jonathan Gray, the No. 3 selection in the 2013 draft, from the Rookie-level Pioneer League to High-A Modesto, where he dominated in his first start.

A trio of pitchers, right-handers Eddie Butler and Luke Jackson and left-hander Andrew Heaney, were moved up to Double-A for the conclusion of the 2013 season, and each impressed in their debut at the level.

Meanwhile, the Pirates and Red Sox have promoted right-handers Jameson Taillon and Anthony Ranaudo, respectively, to Triple-A. And like all of the aforementioned hurlers, each hurler was sharp in his debut.

Here’s a look at the rest of the hottest and coldest pitchers at every minor league level.

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