Of the 13 pitchers the Red Sox drafted in 2022, no one pitched more innings in their first full professional season than 10th-round selection Isaac Coffey.

Coffey, the 309th overall pick in the 2022 amateur draft out of Oral Roberts, received a modest signing bonus of $7,500 and made just two relief appearances in the rookie-level Florida Complex League as part of his pro debut. The right-hander then broke camp with High-A Greenville last spring to kick off his 2023 campaign.

In 11 starts for the Drive, Coffey posted a 2.83 ERA and 3.90 FIP with 83 strikeouts to just 11 walks over 60 1/3 innings of work in which he held opposing hitters to a .223 batting average against. He recorded three double-digit strikeout games in that stretch before earning a promotion to Double-A Portland in late June.

Coffey debuted for the Sea Dogs at Hadlock Field on his 23rd birthday (June 21) and put together one of his shortest outings of the year, allowing four runs over the first two-plus innings of a 5-4 loss to the Reading Fightin Phils. He rebounded to the tune of six scoreless, three-hit frames in a winning effort against the New Hampshire Fisher Cats eight days later and wound up producing a 3.92 ERA (4.93 FIP) with 72 strikeouts to 23 walks in 12 total appearances (11 starts) spanning 57 1/3 innings with Portland.

Among the 106 hurlers who accrued 50 or more innings in the Eastern League last season, Coffey ranked 13th in strikeouts per nine innings (11.3), 44th in walks per nine innings (3.61), 20th in strikeout rate (28.7 percent), 42nd in walk rate (9.2 percent), 20th in batting average against (.215), 21st in WHIP (1.20), 47th in swinging-strike rate (13.1 percent), 45th in ERA, and 48th in xFIP (4.15), per FanGraphs.

Altogether, Coffey went 11-6 with a 3.37 ERA (4.40 FIP) and 155 strikeouts to 33 walks in 23 outings (22 starts, 117 2/3 innings pitched) between Greenville and Portland. For his work with the Drive specifically, he was named a 2023 South Atlantic League All-Star alongside teammates Blaze Jordan and Roman Anthony.

A former two-way player in college, Coffey stands at 6-foot-1 and 205 pounds. The California native throws from a deceptive sidearm slot and — as noted in his SoxProspects.com scouting report — operates with a three-pitch mix that consists of an 88-90 mph fastball that tops out at 91 mph, a 77-79 mph slider that features 10-to-4 break, and an 83-84 mph changeup.

As for how his unique delivery came into existence, Coffey explained to FanGraphs’ David Laurila last June that it dates back to his early days at Oral Roberts, where — in addition to pitching — he saw limited playing time at both middle infield positions.

“I was always a three-quarters guy, never straight over the top, and in my freshman year I had 14 starts while also playing some third base,” Coffey said. “Then, in my junior year [Coffey’s sophomore year coincided with the pandemic], I was fielding ground balls at third base and kind of throwing it over to first sidearm. Doing that felt natural. Our pitching coach saw that and was like, ‘Hey, let’s get you on the mound and play with some different arm slots.’ We did that, dropping way down to going higher up, and settled on the where I’m at right now. It felt comfortable, and my velo and movement both ticked up from where they had been.”

Coming into his age-24 season, Coffey is currently regarded by SoxProspects.com as the No. 44 prospect in Boston’s farm system, which ranks 18th among pitchers in the organization. Barring a trade, he is projected to return to Portland’s starting rotation this spring.

Because he does not light up the radar gun, Coffey will need to show signs of improvement when it comes to handling more mature hitters in the upper-minors. He was solid with the Sea Dogs during the latter half of the 2023 season, but the Red Sox may be looking for more when it comes to evaluating Coffey’s development and future as a starter or reliever.

To that end, Coffey also told Laurila over the summer that he would be willing to do “whatever they want me to do” as it pertains to his future role and potential path to the big-leagues.

“I’ll dive into that role as best as I can,” said Coffey. “Right now it’s being a starter. It’s what I’ve always done. I came out of the ‘pen once in high school and not at all in college. I threw two innings in the [Florida Complex League] after I got drafted, but that’s it as far as relieving. But again, whatever they want in the future, I’ll dive right into it.”

(Picture of Isaac Coffey: Kelly O’Connor/sittingstill.smugmug.com)