The Red Sox have promoted corner infield prospect Jack Winnay from High-A Greenville to Double-A Portland, as was first reported by Andrew Parker of SoxProspects.com.
Winnay, who turned 23 earlier this month, is in his first full professional season. The Newton, Mass. native (and Belmont Hill alumnus) was selected by the Red Sox in the 13th round (388th overall) of the 2025 draft out of Wake Forest. He received an at-slot $150,000 signing bonus and debuted at Low-A Salem last August, batting .321/.393/.434 with one home run and 11 RBIs in a limited 15-game sample.
After integrating himself with the Red Sox player development program over the winter, Winnay entered his first spring training with little fanfare and broke camp with Greenville as an unranked prospect. The right-handed hitter struggled out of the gate, slashing just .184/.382/.250 with one home run and nine RBIs in his first 23 games (102 plate appearances) for the Drive. He began to turn a corner offensively in early May, particularly in the power department, and has only seen his stock rise since then.
Overall, Winnay batted .255/.434/.457 with five doubles, 11 home runs, 31 RBIs, 43 runs scored, 53 walks, and 51 strikeouts in 56 games (251 plate appearances) for Greenville to begin the 2026 season. He posted a .364/.475/.788 clip against lefties and a .232/.427/.387 clip against righties.
Among 81 qualified hitters in the hitter-friendly South Atlantic League, Winnay ranks second in walk rate (21.1%), fourth in on-base percentage, 14th in OPS (.891), 21st in strikeout rate (20.3%), 27th in isolated power (.202), 28th in slugging percentage, and 35th in batting average, according to MiLB.com’s statistical leaderboards.
Defensively, Winnay primarily split his playing time with Greenville between the two corner infield positions. The 6-foot-3, 220-pounder made a team-leading 40 starts at third base, committing 12 errors in 94 chances, and 14 error-free starts at first base. He also made one start at DH and has prior experience in the outfield.
Thanks to his recent hot stretch at the plate, Winnay is now regarded as Boston’s No. 40 prospect by SoxProspects.com. He is not yet ranked by Baseball America or MLB Pipeline, but that may not be too far behind, given the amount of attention he has received as of late.
Winnay joins third-round right-hander Anthony Eyanson as the second member of the Red Sox’ 2025 draft class to reach the upper minors this season. As was the case for Eyanson — who has forged a 1.46 ERA through his first six Double-A starts (24 2/3 innings) — the jump to Portland represents a new challenge for Winnay in the form of more advanced competition.
The Sea Dogs hit the road and open a six-game series against the Hartford Yard Goats on Tuesday night.
(Picture of Jack Winnay: Gwinn Davis/Greenville Drive)
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