Isaiah Campbell Worcester Red Sox Pitcher

       
 
Age: 28
Born: August 15, 1997
Birthplace: Angra de Herismo, Portugal
Height: 6-4
Weight: 230
Bats: Right
Throws: Right
   
Drafted: 2nd Round, 2019 by SEA;
24th round, 2018 by LAA
How Acquired: Acquired from SEA for Luis Urias (Nov. 2023)
College: Arkansas
High School: South (KS)
   

Photo © Kelly O'Connor
Isaiah Campbell photos by Kelly O'Connor
Pronunciation: ---
First Pro Contract: June 17, 2019 (SEA)
Signing Scout: Ben Collman
Signing Bonus: $850,000
Rule 5 Draft Eligible: December 2025
MLFA Eligible: Novemeber 2025
   
Pro Debut: May 9, 2021 (Everett)
Added to 40-man: -
MLB Debut: July 7, 2023 (SEA)
Service Time (1/25): 1 year, 11 days
Options Remaining: 0 (2023, 2024, 2025)
Contract (2025): MiLB contract
   
Twitter: @isaiah_campbell
Instagram: @isaiah_campbell

 
 
 
 
 
     
  Scouting Report & Links      
         
  Scouting Report: Large, filled-out frame. Will need to watch his size. No remaining projection.

Mechanics: High three-quarters arm slot. Clean mechanics.

Fastball: 95-97 mph.Velocity returned in 2025 after dropping into the low-90s in 2024 prior to being shut down with elbow inflammation. Pitch lacks standout characteristics. Average control. Pitch plays below its velocity. Potential average offering.

Slider: 86-88 mph. Short, two-plane break. Average depth. Looks cutterish at times. Primary pitch. High spin rate. Above-average potential.

Curveball: 81-83 mph. High spin rate. 1-to-7 shape. Pitch has depth at its best, but struggles to consistently land in the zone. Fringe-average potential.

Sweeper: 81-83 mph. Long, horizontal break. More tilt and less depth than his curveball. Fringe-average potential.
  Career Notes: Missed most of his sophomore season at Arkansas with elbow issues. Acquired in a trade for Luis Urias in November 2023, he looked very good in spring training and in March/early April 2024, but after back-to-back blow-ups on April 10 and 11, went on the injured list with a right shoulder impingement, missing six weeks. Was optioned to Worcester after completing his rehab assignment, making only one more appearance in Boston before his season ended in mid-July due to right elbow inflammation. Was designated for assignment and non-tendered in November 2024, but re-signed with the Red Sox on a minor league contract.

Summation: Potential up-and-down emergency depth arm. Ceiling of a volatile low-leverage reliever. Lack of fastball quality limits upside and causes him to have to pitch off his breaking balls. All have a high spin rate, but if he is not landing them in the zone, he becomes very predictable. Type of arm that can work in shorter spurts, but if seen multiple times becomes hittable.

Links
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    Pitching Stats                                          
  year team lg level org age w l era g gs sv ip h r er hr hbp bb so whip k/9 bb/9
2016 Arkansas SEC NCAA Fr 18 3 1 3.69 13 6 0 31.2 31 19 13 4 3 11 23 1.33 6.54 3.13
  2017 Arkansas SEC NCAA So 19 0 0 40.50 1 0 0 0.2 3 3 3 0 0 1 1 6.00 13.50 13.50
  2018 Arkansas SEC NCAA Jr 20 5 7 4.26 18 17 0 69.2 67 41 33 4 4 29 75 1.38 9.69 3.75
  2019 Arkansas SEC NCAA Sr 21 12 1 2.13 18 18 0 118.1 87 36 28 5 3 22 125 0.92 9.51 1.67
  2021 Everett AquaSox Nwst A+ Sea 23 3 1 2.33 5 0 0 19.1 13 7 5 2 2 6 20 0.98 9.31 2.79
  2022 Everett AquaSox Nwst A+ Sea 24 1 0 0.82 19 4 10 33.0 18 4 3 2 0 10 35 0.85 9.55 2.73
  2022 Arkansas Travelers Tex AA Sea 24 0 4 3.46 14 0 1 13.0 13 6 5 2 0 2 24 1.15 16.62 1.38
  2023 Arkansas Travelers Tex AA Sea 25 6 0 2.62 23 0 5 24.0 18 9 7 2 0 7 27 1.04 10.12 2.62
  2023 Seattle Mariners AL MLB Sea 25 4 1 2.83 27 0 1 28.2 22 9 9 2 1 13 33 1.22 10.36 4.08
2024 Worcester Red Sox IL AAA Bos 27 0 1 2.20 14 0 0 16.1 14 5 4 3 1 5 19 1.16 10.47 2.76
2024 Boston Red Sox IL AAA Bos 27 0 1 16.20 8 0 0 6.2 14 13 12 3 0 2 6 2.40 8.10 2.70
2025 Worcester Red Sox IL AAA Bos 28 7 7 3.90 43 0 9 57.2 67 32 25 5 5 21 47 1.53 7.34 3.28
  2025 Boston Red Sox AL MLB Bos 28     stats                            
   
     
  Advanced Stats & Splits
   
     
  Awards   SoxProspects.com Awards  
  2022 Northwest League Season-End All-Star   -  
   

   
     
 
 
 
     
 
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