Eduardo Rivera Greenville Drives Pitcher

       
 
Age: 21
Born: June 13, 2003
Birthplace: San Juan, PR
Height: 6-7
Weight: 235
Bats: Left
Throws: Left
   
Drafted: 11th round, 2021 by OAK
How Acquired: Minor league free agent (June 2024)
High School: Colegeio Cadest (PR)

Photo © Kelly O'Connor
Eduardo Rivera photos by Kelly O'Connor
Pronunciation: -
First Pro Contract: July 21, 2021 (OAK)
Signing Scout: Ruben Escalera
Signing Bonus: $125,000
Rule 5 Draft Eligible: December 2025
MLFA Eligible: November 2027
   
Pro Debut: September 21, 2021 (ACL A's)
Added to 40-man: -
MLB Debut: -
Service Time (1/25): 0 days
Options Remaining: 3 (0 used)
Contract (2025): MiLB contract
   

 
 
 
 
 
     
  Scouting Report & Links      
         
  Physical Description: Tall, extra large frame at 6-foot-7, 275 pounds. Massive pitcher's frame. Intimidating presence. No remaining projection.

Mechanics: Throws from a low three-quarters arm slot, starting on the first base side of the rubber. Some effort in delivery. High leg kick. Short arm action behind and hides the ball there. Quick forward. Solid extension.

Fastball: 94-96 mph. Has reportedly topped out at 99 mph. Command and control need work. Pitch jumps on hitters. Velocity has ticked up since signing with Boston.

Slider: 83-87 mph. Primary secondary pitch. Solid tilt. Flashes bat-missing ability when he throws it competitively.

Changeup: 87-88 mph. Show-me pitch that he uses infrequently. Well-below average at present.



  Career Notes: Drafted by Oakland in the tenth round in 2021. Pitched in one game in the Arizona Complex League that season, then missed most of 2022 with an injury. Struggled through control issues in Low-A in 2023. Released by Oakland in May 2024 after 4 games in High-A. Signed with Boston in June 2024 and had a solid showing in the FCL and with Salem. Pitched for Cangrejeros de Santurce in the Puerto Rican Winter League during the 2024-25 off-season and excelled as one of the best pitchers in the league.

Summation: Has an intriguing combination of size and velocity. If he can find consistency with his arsenal and improved command and control, could become a really intriguing prospect, as stuff has never been an issue and even seems to have taken a step forward in Spring Training 2025. Slider flashes bat-missing ability and gives him a solid two-pitch combination. Changeup is a work in progress. Needs to find a third pitch to have a chance to stick as a starter. Has stuff that could really play up in a bullpen role.

Note: This page will be updated with a complete scouting report after the scouting team has seen the player in regular season game action.

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
2021 ACL Athletics ACL Rk Oak 18 0 0 0.00 1 1 0 1.0 0 0 0 0 0 0 1 0.00 9.00 0.00
2022 ACL Athletics ACL Rk Oak 19 0 0 3.29 8 3 0 13.2 15 7 5 0 0 11 22 1.90 14.49 7.24
2023 Stockton Ports Cal A Oak 20 2 7 5.35 16 12 0 69.0 67 48 41 3 6 44 75 1.61 9.78 5.74
2024 Stockton Ports Cal A Oak 21 0 0 0.00 4 0 2 2.2 1 0 0 0 0 0 3 0.37 10.12 0.00
2024 Lansing Lugnuts Midw A+ Oak 21 0 1 11.88 4 2 0 8.1 11 13 11 0 0 10 8 2.52 8.64 10.80
2024 FCL Red Sox FCL Rk Bos 21 1 1 4.70 4 1 1 7.2 10 6 4 0 0 2 8 1.57 9.39 2.35
2024 Salem Red Sox Car A Bos 21 0 1 1.99 6 4 0 22.2 14 10 5 1 1 7 30 0.93 11.91 2.78
  2024 Cangregeros de Santurce PRWL Wint Bos 21 2 1 1.15 11 7 0 39.0 25 9 5 0 0 12 56 0.95 12.92 2.77
2025 Greenville Drive SAL A+ Bos 22     stats                            
   
     
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