How did Red Sox infield prospect Starlyn Nunez fare in 2025?

Red Sox prospect Starlyn Nunez led the organization in triples this season. This article will examine how the recently-turned 20-year-old infielder fared in 2025 overall.

Nunez spent all of 2025 at Low-A Salem and got his first taste of full-season ball in doing so. The young switch-hitter initially got off to a slow start in the pitcher-friendly Carolina League and struggled to produce consistent results through much of the first half. Heading into the MLB All-Star break in mid-July, he had batted just .238/.298/.363 with 11 doubles, three triples, five home runs, 35 RBIs, 32 runs scored, 13 stolen bases, 17 walks, and 48 strikeouts in his first 70 games (282 plate appearances) of the year.

After starting to show some signs of life before the break, Nunez picked up where he left off once the second half began on July 18. For the better part of the next month, Nunez proved to be a stabilzing force in Salem’s lineup, slashing .326/.371/.584 with eight doubles, three triples, three home runs, 11 RBIs, 15 runs scored, three stolen bases, seven walks, and 23 strikeouts in 24 games (97 plate appearances) through August 17.

As late August turned into September, though, Nunez seemingly ran out of gas and ended the year in a 11-for-65 (.183) rut. He did, however, fittingly triple and drive in one run as part of a 2-for-4 day in Salem’s regular-season finale against Fayetteville on September 7.

Altogether, Nunez slashed .249/.306/.407 (100 wRC+) with 24 doubles, an organizational-leading eight triples, eight home runs, 52 RBIs, 54 runs scored, a team-leading 21 stolen bases, 27 walks, and 91 strikeouts in 110 games (444 plate appearances) as a 19-year-old for Salem this season. That includes a .221/.303/.407 line from the right side of the plate and a .257/.307/.408 line from the left side.

Among 47 qualified hitters in the Carolina League this year, Nunez notably ranked fourth in isolated power (.158), fifth in slugging percentage, seventh in speed score (7.9), 14th in line-drive rate (24.6 percent), 18th in batting average, OPS (.713), and strikeout rate (20.5 percent), 22nd in wOBA (.343), per FanGraphs.

Defensively, Nunez saw playing time at every infield position besides first base for Salem this season. The 6-foot, 155-pounder logged a team-leading 583 1/3 innings at shortstop, 168 1/3 innings at third base, and 130 1/3 innings at second base, committing 31 errors in 394 total chances. He also made two starts at DH.

Nunez, who celebrated his 20th birthday earlier this month, originally signed with the Red Sox for $52,500 as an international free agent out of the Dominican Republic in January 2023. The San Pedro de Macoris native earned Dominican Summer League All-Star honors in his professional debut before a non-injury issue limited him to 35 games in the Florida Complex League last season.

As things stand, Nunez is unranked by Baseball America and MLB Pipeline but is considered the No. 37 and No. 39 prospect in Boston’s farm system by SoxProspects.com and FanGraphs, respectively. If he remains in the organization through the winter and into the spring, Nunez is projected by SoxProspects.com to make the jump to High-A Greenville in 2026.