Red Sox pitching prospect Isaac Coffey has been named Double-A Portland’s Pitcher of the Year, the Sea Dogs announced prior to their season finale against the Binghamton Rumble Ponies at Hadlock Field on Sunday.
Coffey, 24, appeared in 24 games (made 21 starts) for the Sea Dogs this season. The sidearming right-hander posted a 3.17 ERA and 3.81 FIP with 148 strikeouts to 51 walks over a team-leading 113 2/3 innings of work. That includes a 1.42 ERA (2.59 FIP) with 56 strikeouts to eight walks in six outings (31 2/3 innings) after the calendar flipped from July to August.
Among 35 qualified pitchers at the Double-A level in 2024, Coffey ranked second in strikeouts per nine innings (11.72) and strikeout rate (30 percent), fifth in batting average against (.215), seventh in ERA, 11th in WHIP (1.23), 12th in FIP, and 14th in xFIP (3.90), per FanGraphs. While the strikeout numbers are impressive, Coffey also ranked 28th in walk rate (10.3 percent) and 29th in walks per nine innings (4.04) while hitting more batters (25) than anyone else at his level.
Coffey just put the finishing touches on his second full professional season after originally being selected by the Red Sox in the 10th round of the 2022 amateur draft out of Oral Roberts. The California native received a modest $7,500 signing bonus at that time and is now regarded by SoxProspects.com as the No. 58 prospect in Boston’s farm system, which ranks 30th among pitchers in the organization.
Listed at 6-foot-1 and 205 pounds, Coffey threw from a three-quarters arm slot as a two-way player in college but has since settled in as a sidearmer. As noted in his SoxProspects.com scouting report, the athletic righty operates with a four-pitch mix that consists of an 88-90 mph fastball that tops out at 92 mph, a 76-78 mph changeup that is considered his best secondary offering, an 82-84 mph sweeping slider, and a newly-implemented cutter.
Should he remain with the Red Sox through the winter, Coffey — who does not turn 25 until next June — is projected by SoxProspects.com to make the jump to Triple-A Worcester in 2025. A lack of velocity limits his upside, but he still has intriguing potential moving forward.
(Picture of Isaac Coffey: Kelly O’Connor/sittingstill.smugmug.com)
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