Jhonathan Diaz   Pitcher

       
 
Age: 24
Born: September 13, 1996
Birthplace: Valencia, Venezuela
Height: 6-0
Weight: 170
Bats: Left
Throws: Left
   
Drafted: Not draft eligible
How Acquired: International free agent
(July 2013)

Photo © Kelly O'Connor
Jhonatahn Diaz Photos by Kelly O'Connor

Signed with the LA Angels (Nov. 2020)
Pronunciation: ---
First Pro Contract: July 2, 2013 (BOS)
Signing Scout: Angel Escobar
Signing Bonus: $600,000
   
Pro Debut: June 2, 2014 (DSL)
MLB Debut: September 17, 2021 (LAA)
   
Twitter: -
Instagram: @jhonatthandiaz

 
 
 
 
 
     
  Scouting Report & Links      
         
  Physical Description: Slightly under-sized, athletic left-hander. Seemingly filled-out throughout.

Mechanics: Throws from a three-quarters arm slot from the third base side of the rubber. Athletic, compact, methodical delivery. Stays closed off in his delivery, showing his back to the hitter, and repeats well.

Fastball: 89-91 mph. Shows arm-side run and sink. Generates lots of ground balls. Velocity drops as he works deeper into games. Lacks plane due to height.

Curveball: 73-76 mph. Will show tight 1-to-7 rotation when he finishes his delivery and snaps it off. Can throw for strikes in early in counts. Potential average pitch.

Changeup: 79-82 mph. Decent feel and deceptive arm speed. Ability to throw for strikes in any count. Average fade and movement.
  Slider: 79-80 mph. Average tilt and will throw in any count.

Career Notes: Missed 2015 with a knee injury. Reportedly threw just as hard with either arm when he signed.

Summation: Potential Quad-A type starter. Ceiling of an up-and-down emergency starter. Lacks projection physically. Average stuff across the board with the ability to command and control all pitches and throw for strikes in any count. Advanced pitchability and sequencing. Lacks a put-away pitch to profile out of the pen.

Links
Scouting Scratch: Fall Instructs Part Three (10.10.14)
Notes from the Field (4.25.18)
 
   
     
    Pitching Stats                                          
  year team lg level org age w l % era g gs sv ip h r er hr bb so whip k/bb k/9
2014 DSL Red Sox DSL Rk Bos 17 6 2 0.750 1.63 14 14 0 66.1 46 15 12 1 16 54 0.93 3.38 7.33
  2015 DNP-Injured --- --- Bos 18 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
  2016 GCL Red Sox GCL Rk Bos 19 4 4 0.500 2.85 13 12 0 60.0 52 28 19 2 18 57 1.17 3.17 8.55
  2016 Lowell NYPL A- Bos 19 Playoffs Only
  2017 Greenville SAL A Bos 20 6 6 0.500 4.57 18 18 0 88.2 101 57 45 4 28 80 1.45 2.86 8.12
  2018 Greenville SAL A Bos 21 11 8 5.79 3.00 26 26 0 153.0 123 60 51 6 39 147 1.06 3.77 8.65
  2018 Salem Car A+ Bos 21 0 1 0.00 6.23 1 1 0 4.1 7 3 3 1 2 4 2.08 2.00 8.31
  2019 Salem Car A+ Bos 22 9 8 0.529 3.86 27 27 0 128.1 121 63 55 6 54 118 1.36 2.19 8.28
  2019 Peoria AFL Fall Bos 22 0 0 --- 4.35 8 0 0 10.1 11 5 5 0 6 16 1.65 2.67 13.94
  2020 MiLB Season Cancelled --- --- Bos 23 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
  2021 Rocket City DAS AA LAA 24 5 3 0.625 3.98 13 9 0 61.0 50 27 27 5 12 78 1.02 6.50 11.50
  2021 Salt Lake TAW AAA LAA 24 0 3 0.000 4.11 3 3 0 15.1 15 7 7 0 8 14 1.50 1.75 8.20
  2021  Los Angeles AL MLB LAA 24 1 0 1.000 4.15 3 2 0 13.0 11 6 6 1 7 9 1.39 1.29 6.20
  2022 Salt Lake TAW AAA LAA 25 3 1 0.750 4.98 10 10 0 47.0 44 28 26 4 20 46 1.36 2.30 8.81
  2022  Los Angeles AL MLB LAA 25 1 1 0.500 2.93 4 3 0 15.1 13 5 5 1 10 11 1.50 1.10 6.46
  2023 Salt Lake TAW AAA LAA 26 9 2 0.818 4.55 38 8 1 87.0 82 50 44 10 43 79 1.44 1.84 8.17
  2023  Los Angeles AL MLB LAA 26 0 0 --- 10.29 4 1 0 7.0 13 11 8 0 7 4 2.86 0.57 5.14
   
     
  Advanced Stats & Splits
   
     
  Awards   SoxProspects.com Awards  
  Red Sox Minor League Starting Pitcher of the Month (August 2018)   2014 SoxProspects.com DSL Player of the Year
SoxProspects.com Pitcher of the Week (August 8-14, 2016)
2016 SoxProspects.com All-Star
2016 SoxProspects.com Comeback Player of the Year
SoxProspects.com Pitcher of the Week (June 4-10, 2018)
SoxProspects.com Pitcher of the Month (Agusut 2018)
SoxProspects.com Pitcher of the Week (Aug. 27 - Sep. 2, 2018)
2018 SoxProspects.com All-Star
SoxProspects.com Pitcher of the Week (July 1-7, 2019)
SoxProspects.com Pitcher of the Week (Aug. 25 - Sep. 2, 2019)
 
   

   
     
 
 
 
     
 
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