Ronaldo José Hernández is a Colombian professional baseball catcher in the Boston Red Sox organization. Listed at 6 feet 1 inch (1.85 m) and 230 pounds (100 kg), he throws and bats right-handed.

Born on November 11, 1997, Ronaldo is said to have in August 2014 played for the Tampa Bay Rays as an International free agent.

He played 2016 with the Dominican Summer League Rays, slashing .340/.406/.485 with 6 home runs and 35 RBIs in 54 games and 2017 with the Princeton Rays, hitting .332 with 5 home runs and 40 RBIs in 54 games.

The 2019 season saw Ronaldo being added to the Rays 40–man roster but unfortunately was unable to play in 2020 due to the cancellation of the minor league.

On February 17, 2021, the Rays traded Hernández and Nick Sogard to the Boston Red Sox in exchange for Chris Mazza and Jeffrey Springs.

He is said to have played 99 games for the Boston Red sox and has had batted a combined .284 with 16 home runs and 58 RBIs.

Ronaldo Hernandez Prospect Ranking

Ronaldo Hernandez is ranked as the 23rd best player of the Boston Red Sox.

Scouting grades: Hit: 40 | Power: 50 | Run: 30 | Arm: 70 | Field: 45 | Overall: 40

Minors

SEASON TEAM G AB OBP SLG R H 2B 3B HR RBI BB K SB AVG
2015
DSL RAY (ROK)
 13 44 .320 .273 3 10 0 1 0 4 3 6 0 .227
2016
DSL RAY1 (ROK)
 54 206 .406 .485 34 70 12 0 6 35 20 12 3 .340
2017
PRN (ROK)
 54 223 .382 .507 42 74 22 1 5 40 16 39 2 .332
2018
BG (A)
 109 405 .339 .494 68 115 20 1 21 79 31 69 10 .284
2019
CHA (A+)
 103 393 .299 .397 43 104 19 3 9 60 17 65 7 .265
2021 2 Teams 99 363 .326 .501 45 103 29 1 16 58 12 77 0 .284
Career 7 Teams 432 1634 .340 .467 235 476 102 7