Kelvin Diaz   Outfield

       
 
Born: October 3, 2002
Birthplace: Neiba, DR
Height: 6-0
Weight: 145
Bats: Right
Throws: Right
   
Drafted: Not draft eligible
How Acquired: International free agent (July 2019)
   

Photo © Kelly O'Connor
 
Pronunciation: -
First Pro Contract: July 17, 2019 (BOS)
Signing Scouts: Domingo Brito, Todd Claus
& Chris Becerra
Signing Bonus: $300,000
   
Pro Debut: Yet to debut
MLB Debut: -
   
Twitter:
Instagram: @k_diaz_17

Released (August 2025)
 
 
 
 
 
     
  Scouting Report & Links      
         
  Physical Description: Athletic, projectable frame. One of the better athletes in the system. Needs to add strength, but is now on the older side for an IFA still trying to establish himself in Low-A.

Hit: Starts open and vertical with his hands high. Short leg lift timing device. Has above-average bat speed but is very raw at the plate. Lacks feel for spin and struggles to make consistent contact. When he does make contact, it is often of low quality. Needs to improve swing decisions and overall approach.

Power: When he elevates the ball, will show average raw power, but struggles to do so in games. Power is primarily to the pull side.

Run: Plus speed. Instincts are a work in progress.

Field: Has the athleticism to stick up the middle, but still learning the nuances of playing center field. Reads and first step are a work in progress, but has the speed and range to make up for mistakes.

  Arm: Above-average arm strength.

Career Notes: Was considered the best pure athlete in the Red Sox 2019-20 international class. Trained as a shortstop but moved to the outfield after signing.

Summation:
Potential low minors depth player. Ceiling of a high-minors bench type. Very raw, athletic player, but is now well behind the development curve having signed in 2019 and still having been unable to establish himself at a full-season affiliate. Needs to take a step forward with his approach and instincts in order to get out of the low minors. Has the athleticism such that something could click at any time, and will show flashes of an interesting player, but is really running out of time to turn potential into on-field performance.


Links

State of the System 2020: Noteworthy Extras (5.26.2020)
Scout Chatter (9.23.2021)
 
   
     
    Hitting Stats                                          
  year team lg level org age g ab r h 2b 3b hr rbi tb bb so sb cs avg obp slg ops
2020 Season Cancelled --- --- Bos 17 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
2021 DSL Red Sox DSL Rk Bos 18 46 141 23 33 5 2 2 16 48 13 39 13 6 0.234 0.325 0.340 0.666
2022 DSL Red Sox DSL Rk Bos 19 46 178 41 43 12 4 6 30 81 16 55 20 3 0.242 0.333 0.455 0.788
2023 FCL Red Sox FCL Rk Bos 17 47 137 30 29 4 2 2 16 43 34 49 21 4 0.212 0.384 0.314 0.698
2024 FCL Red Sox FCL Rk Bos 18 47 114 26 34 10 0 2 17 50 13 39 20 2 0.298 0.378 0.439 0.816
2024 Salem Red Sox Car A Bos 18 29 103 16 22 8 1 1 7 35 6 41 8 2 0.214 0.257 0.340 0.597
2025 Salem Red Sox Car A Bos 19 36 108 17 19 4 0 4 16 35 10 32 9 4 0.176 0.250 0.324 0.574
  2025 Greenville Drive SAL A+ Bos 19 12 32 1 2 1 0 0 2 3 4 15 1 0 0.063 0.167 0.094 0.261
   
     
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