Ryan Zeferjahn Portland Sea Dogs Pitcher

       
 
Age: 26
Born: February 28, 1998
Birthplace: Topeka, KS
Height: 6-5
Weight: 230
Bats: Right
Throws: Right
   
Drafted: 3rd  round, 2019 by BOS;
37th round, 2016 by TB
How Acquired: Draft
College: Kansas
High School: Seaman (KS)
   

Photo © Kelly O'Connor
Ryan Zeferjahn Photos by Kelly O'Connor
Pronunciation: ZEFF-er-john
First Pro Contract: June 12, 2019 (BOS)
Signing Scout: Lane Decker
Signing Bonus: $500,000
Rule 5 Draft Eligible: December 2024
MLFA Eligible: November 2025
   
Pro Debut: June 30, 2019 (Lowell)
Added to 40-man: ---
MLB Debut: ---
Service Time (1/24): ---
Options Remaining: 3 (0 used)
Contract (2024): MiLB contract
   
Twitter: @ryanzeferjahn13
Instagram: @ryanzeferjahn13

 
 
 
 
 
     
  Scouting Report & Links      
         
  Physical Description: Large pitcher's frame. Looks the part. Tall and filled out with a sturdy lower half.

Mechanics: Throws from a high-three-quarters arm slot. Stiff delivery with considerable effort. Starts in the middle of the rubber and does not use a wind-up. Has a high leg kick and rocks back before coming forward. Rough arm action with a stab behind and is quick coming forward. Arm that can get out of sync with his delivery. Inconsistent release point. Sometimes telegraphs breaking ball by shortening his arm swing. Gets some deception from his front side.

Fastball: 95-97 mph. Tops out at 98 mph. Above-average life up in the zone. Will show bat-missing ability up, but is straight and hittable when down. Plus-plus velocity. Command lags behind at present and projects as below-average. With improved command, could develop into a potential plus offering.

Slider: 85-87 mph. 10-to-4 shape. Pitch will show depth and bite at its best when he really gets over it. Will bury it down and out of the zone when ahead in the count. Above-average potential.

Changeup: 81-83 mph. Throws with deceptive arm speed and has good separation from his fastball. Has splitter-like, late drop. Shows confidence in pitch. Uses primarily against left-handed hitters. Potential average offering.
  Curveball: 76-78 mph. 12-to-6 shape. Average depth. Lacks bite. Viable pitch when sequenced correctly to steal a strike early in the count. Rarely thrown later in the count. Does not consistently get over it. Fringe-average potential.

Career Notes:
Added size and velocity in college. Developed a blister on his nail after signing, limiting his ability to throw his breaking balls during his debut in Lowell. Participated in 2020 Fall Instructional League. Began 2021 season in Low-A Salem but was sent down to the Ft. Myers complex in mid-July after significant struggles, working on the side on mechanics before re-entering games on August 31. Participated in the Fall Performance Program in 2021. Transitioned to the bullpen in 2022 and was generally more successful, particularly in the second half. Pitched in the Arizona Fall League in 2022.

Summation:
Potential up-and-down emergency reliever. Has the raw stuff to profile in a major league role, but command needs refinement and needs to find more consistency with his stuff from outing to outing. Delivery brings injury risk, but if he can stay healthy, he is another intriguing power arm with a legit fastball/breaking ball combination.

Links
State of the System: Low Minors Pitchers (4.2.20)
Scouting Report Update (8.12.2020)

 
   
     
    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
2017 Kansas NCAA Coll --- 19 4 4 0.500 6.19 18 13 0 52.0 58 37 36 4 35 53 1.78 1.51 9.11
  2018 Kansas NCAA Coll --- 20 8 5 0.615 4.48 14 14 0 80.0 66 43 40 11 39 100 1.31 2.56 11.20
  2019 Kansas NCAA Coll --- 21 5 2 0.714 3.97 15 15 0 88.1 60 43 39 7 44 107 1.18 2.43 10.90
  2019 Lowell NYPL A- Bos 21 0 2 0.000 4.50 12 12 0 22.0 24 12 11 2 12 31 1.64 2.58 12.68
  2020 Season Cancelled --- --- Bos 22 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
  2021 FCL Red Sox FCL Rk Bos 23 0 0 --- 3.21 4 4 0 14.0 12 6 5 2 3 18 1.07 6.00 11.60
  2021 Salem Red Sox LAE A Bos 23 1 4 0.200 6.91 12 12 0 41.2 53 41 32 2 15 41 1.63 2.73 8.90
2022 Greenville Drive SAL A+ Bos 24 2 4 0.333 5.79 28 5 1 60.2 58 41 39 6 29 73 1.43 2.52 10.83
  2022 Portland Sea Dogs East AA Bos 24 3 0 1.000 0.84 6 0 0 10.2 3 1 1 1 4 7 0.66 1.75 5.91
  2022 Scottsdale Scorpions AFL Fall Bos 24 0 1 0.000 4.80 9 1 0 15.0 11 10 8 2 8 18 1.27 2.25 10.80
  2023 Salem Red Sox Car A Bos 25 1 0 1.000 0.00 2 1 0 3.0 3 0 0 0 0 2 1.00 --- 6.0
  2023 Portland Sea Dogs East AA Bos 25 0 4 0.000 5.02 34 0 2 43.0 33 27 24 7 40 68 1.70 1.70 14.23
  2024 Portland Sea Dogs East AA Bos 26     stats                            
   
     
  Advanced Stats & Splits
   
     
  Awards   SoxProspects.com Awards  
  2017 Perfect Game Pre-Season All-American
2018 All-Big 12 Second Team
2019 Baseball America Preseason All-American
Red Sox Minor League Relief Pitcher of the Month (May 2022)
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