How did Red Sox relief prospect Alex Hoppe fare in 2023?

Red Sox relief prospect Alex Hoppe certainly made his impact felt on the mound during his first full professional season in 2023.

Hoppe, who was taken in the sixth round of the 2022 amateur draft out of UNC Greensboro, signed with Boston for just $32,250 last July after earning Southern Conference Pitcher of the Year honors as a fifth-year senior.

Having logged 66 2/3 innings in his final season with the Spartans, Hoppe did not pitch for a minor-league affiliate in the closing weeks of the 2022 campaign. The 24-year-old Iowan instead made the jump to High-A Greenville right out of spring training in early April and made his pro debut shortly thereafter.

Hoppe got off to a rough start with the Drive but began to turn things around for the better as the calendar flipped to May. By the end of July, the right-hander owned a 3.93 ERA and 3.38 FIP with 48 strikeouts to 14 walks in 31 relief appearances (34 1/3 innings) for Greenville.

Wanting to see more, the Red Sox promoted Hoppe to Double-A Portland on August 1. With the Sea Dogs, Hoppe pitched to a 4.50 ERA and 4.42 FIP with 16 strikeouts to just three walks over 12 outings (14 innings) in which he converted two saves in three opportunities. He closed out his season by tossing a scoreless ninth inning in a 6-3 win over the Hartford Yard Goats on Sept. 12 at Hadlock Field.

All told, Hoppe posted a 4.10 ERA (3.68 FIP) to go along with 64 strikeouts to 17 walks across 43 appearances spanning 48 1/3 innings of work between Greenville and Portland. Among the 59 minor-league pitchers in the Red Sox system who threw 40 or more innings this season, Hoppe ranked ninth in strikeouts per nine innings (11.92) and strikeout rate (30.3 percent), 15th in walks per nine innings (3.17), 14th in walk rate (8.1 percent), 10th in groundball rate (48.4 percent), 16th in swinging-strike rate (15.3 percent), 25th in ERA, 11th in FIP, and fourth in xFIP (3.13), per FanGraphs.

On the flip side of that, though, is the fact that Hoppe gave up 52 hits in 48 1/3 innings, leading to a WHIP of 1.43 and opponents’ batting average of .271. While neither of those figures are eye-popping, it should be noted that Hoppe also yielded a .374 batting average on balls put in play this year, which suggests that luck was not exactly on his side.

Listed at 6-foot-1 and 200 pounds, Hoppe throws from a three-quarters arm slot and operates with a pitch arsenal that is headlined by a 96-99 mph fastball that can reach triple digits. The hard-throwing righty also mixes in an 84-87 mph slider and a rarely-used 85-87 mph changeup, according to his SoxProspects.com scouting report.

Hoppe, who turns 25 next month, is currently regarded by SoxProspects.com as the No. 32 prospect in Boston’s farm system, which ranks 12th among pitchers in the organization. Ian Cundall, the site’s director of scouting, wrote in September that Hoppe is “one of the top true relief prospects in the system for me.”

Assuming he remains in the organization through the winter, Hoppe is projected to return to Portland’s bullpen for the start of the 2024 season. His development moving forward will likely hinge on his ability to refine the command and control of his secondary offerings. If he can do that, he could be a fast riser next year.