Allan Castro

Organization Prospect Rankings

• 
  Ranked Boston Red Sox #13 prospect in 2025
  BA Grade/Risk: 45/Medium.
  
  Track Record: Castro signed out of the Dominican Republic as a middle infielder with bat life and solid contact skills from both sides of the plate. He looked more natural defensively after shifting to the outfield at the start of his pro career. He took a meaningful step toward a balanced skill set in 2023, when he hit .261/.368/.405 across both Class A levels. Some viewed him as a potential breakout player in 2024. Castro instead had an up-and-down season as his strikeout rate jumped from 18% to 23% and he struggled to stay above water in a season-ending promotion to Double-A.
  
  Scouting Report: At his best, Castro features a quiet approach from both sides of the plate with the ability to drive the ball while batting lefty and a flatter path resulting in liners as a righty. His swing decisions were inconsistent in 2024, and he chased too much at Double-A. As a result, his strikeout rate spiked to 26% and he caught fewer barrels and walked less often. Castro shows the ability to be at least average in both outfield corners, with the ability to fill in as a center fielder. He’s a slightly above-average runner.
  
  The Future: Castro will open 2025 at Double-A and could get to Triple-A by the end of the year. He has a balanced profile that suggests promise as a fourth outfielder who plays chiefly against righties—and the potential for more with physical gains.
  
  Scouting Grades: Hit: 45 | Power: 45 | Run: 55 | Field: 50 | Arm: 50.
• 
  Ranked Boston Red Sox #17 prospect in 2024
  BA Grade: 45/High
  
  Track Record: The Red Sox signed Castro as a middle infielder in 2018, impressed with his athleticism and offensive potential in tryouts, with quick bat speed and the ability to manipulate the barrel from both sides of the plate. He proved a bit stiff to stay on the dirt in pro ball but quickly took to the outfield, where he could move more freely. After a solid 2022 season, Castro turned heads in spring training in 2023 with strength gains and increasingly loud contact. The strong first impression carried through a season when he hit .261/.368/.405 with a 14% walk rate and 18% strikeout rate at Low-A Salem and High-A Greenville.
  
  Scouting Report: Though a natural righthanded hitter, Castro has made enough strides as a lefthanded hitter--with simple, clean stances--to project as a solid line-drive hitter against righthanders in the big leagues. He’s currently more of a gap-to-gap hitter with solid plate discipline than a power hitter, though he does hit the ball hard enough to create more potential impact. That’s a step that is necessary for him to emerge as an everyday player. Castro moves well enough in the outfield to handle both corners while also offering an option in center, and he possesses the arm to handle any outfield spot.
  
  The Future: Castro likely will open 2024 in High-A, with a strong likelihood of moving to Double-A during the season. His solid, well-rounded skill set gives him a chance to be at least a fourth outfielder with a chance to improve that projection if he develops more power.
  
  Scouting Grades Hit: 50 | Power: 40 | Run: 50 | Field: 50 | Arm: 55