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Rockies Sign Diego Castillo To Minors Deal

By Mark Polishuk | December 26, 2024 at 2:52pm CDT

The Rockies have signed right-hander Diego Castillo to a minor league contract, according to Aram Leighton of Just Baseball Media.  The pact includes an invitation for Castillo (who turns 31 next month) to attend Colorado’s big league spring camp.

Castillo is best known for his five-year run as a workhorse in the Rays’ and Mariners’ bullpens from 2018-22, as the righty posted a 3.12 ERA, 28.1% strikeout rate, 50.7% grounder rate, and 8.9% walk rate over 259 2/3 innings and 250 appearances in that span.  Unfortunately, he got off to a very rough start in his first eight games (and 8 2/3 innings) in 2023, leading the Mariners to outright him off their 40-man roster at the start of May.  Castillo spent the remainder of the season at Triple-A, then elected free agency at season’s end.

The Rangers signed Castillo to a minor league deal last winter and released him near the end of Spring Training, with the Twins then quickly adding him on another minors contract.  Castillo’s season in Minnesota saw him twice designated for assignment and outrighted off the 40-man roster, and he re-signed another minor league deal with the Twins after opting for free agency after that initial outright at midseason.  All of this movement resulted in another season of pretty minimal MLB playing time, as Castillo appeared in 10 games with the Twins and posted a 2.70 ERA in 10 innings.

Control is the biggest issue behind Castillo’s decline, as his walk rate has shot up to 14.92% over 84 1/3 innings of Triple-A ball over the last two seasons, and 17.9% in his brief MLB sample size of 18 2/3 innings.  A velocity drop may have also been partially responsible for Castillo’s struggles in 2023 specifically, though his fastball ticked upwards from 93.8mph in 2023 to 95.9 mph in 2024.

Castillo’s prime years are recent enough that it makes sense that teams would still want to take a flier on the veteran righty.  For the Rockies in particular, his ability to keep the ball on the ground could be useful in the thin air of Coors Field, if Castillo can earn himself a shot on Colorado’s active roster.

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Colorado Rockies Transactions Diego Castillo

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18 Comments

  1. AllAboutBaseball

    10 months ago

    Yess!!!

    Reply
  2. MLB Top 100 Commenter

    10 months ago

    Increased bases on balls and decreased velocity does not portend well for Coors Field.

    “But it’s a minor league contract.”

    1
    Reply
    • M’s is for maybe

      10 months ago

      He actually increased his velocity last year.

      1
      Reply
  3. BravesNoccahoma

    10 months ago

    Frequent Flier Miles……

    Reply
  4. twozero6ix

    10 months ago

    Sweatiest soldier

    1
    Reply
    • SODOMOJO

      10 months ago

      DA BIG BOSS

      1
      Reply
  5. jbryant0693

    10 months ago

    MLB’s worst FO did something.

    Reply
  6. Tom the ray fan

    10 months ago

    Diego Castillo, not to be confused with Diego Castillo

    2
    Reply
  7. dougjay

    10 months ago

    This guy was AWESOME, pure fire in Tampa Bay but Willy Adames was the straw that stirred his drink. Willy controlled him emotionally (coz he was known do get mad or lose focus) and would calm him and also would tell him how to attack the batter. If you could get THAT version of Diego back he’d easily be top 10 reliever in MLB but the high altitude of Denver is gonna make this a bad signing.

    Reply
    • pohle

      10 months ago

      i thought he was one of the guys who really struggled with the pitch clock. seems like he still hasnt figured out how to work with pace and still get outs, but maybe he can figure it out. god knows the rockies perpetually need bullpen arms

      1
      Reply
  8. dougjay

    10 months ago

    I truly wish Astros would sign him, him and Framber have a lot of similarities.

    Reply
  9. KnicksFanCavsFan

    10 months ago

    It’s amazing how some teams have done almost nothing this winter.

    1
    Reply
  10. BlueSkies_LA

    10 months ago

    Where are the Nice Pickup bots today?

    3
    Reply
  11. nice pickup

    10 months ago

    Nice Pickup!

    2
    Reply
  12. RaysFan1998

    10 months ago

    Yes, he throws hard, but it doesn’t always go where he’s trying to throw it.

    1
    Reply
    • LaBellaVita

      10 months ago

      Indeed. Apparently opposing teams started to realize that most of his pitches were not going to be strikes. RFO knew, but the MFO did not.

      Reply
  13. numberoneslayerfan

    10 months ago

    i prefer diego castillo to diego castillo

    Reply
    • RaysFan1998

      9 months ago

      ☺

      Reply

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