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Mariners, Luis F. Castillo Agree To Minor League Deal

By Steve Adams | January 28, 2025 at 10:03pm CDT

The Mariners have signed right-hander Luis F. Castillo to a minor league contract and invited him to big league camp this spring, Jon Heyman of the New York Post reports. The 29-year-old Castillo — obviously not to be confused with the eight-year MLB veteran of the same first and last name currently in Seattle’s rotation — pitched briefly with the Tigers in 2022 and has spent the past two seasons in Japan.

The younger Castillo has pitched 3 2/3 shutout frames in the majors, yielding only two hits and no walks with four strikeouts for Detroit in that ’22 cup of coffee. He carries a career 1.93 ERA in 18 2/3 Double-A frames and a 3.28 ERA in 60 1/3 Triple-A innings spread across two seasons. The Tigers outrighted him off their 40-man roster following the 2022 season, and he elected free agency before going on to sign with Nippon Professional Baseball’s Chiba Lotte Marines in Japan.

Castillo pitched well with the Marines, logging 49 innings with their big league squad and recording a 3.12 ERA with a sub-par 17% strikeout rate but a microscopic 1.5% walk rate. He faced 200 batters that season with the Marines and issued only three walks (plus another two hit batsmen).

Castillo parlayed that impressive showing into a bigger look with NPB’s Orix Buffaloes. As with the Marines, he pitched quite well. Castillo pitched 94 1/3 innings out of the Buffaloes’ rotation (15 starts) and notched a 2.96 ERA with an improved 19.6% strikeout rate. The absurd walk rate he demonstrated a year prior unsurprisingly proved impossible to sustain, but his 4.8% walk rate was excellent nevertheless.

Whether the newly signed Castillo will serve as rotation depth or compete for a spot in the bullpen isn’t clear. The Seattle rotation is stacked with the presence of the other Luis Castillo, George Kirby, Logan Gilbert, Bryce Miller and Bryan Woo. Depth options like Emerson Hancock, Jhonathan Diaz and Blas Castano are all on the 40-man roster, while well-regarded prospect Logan Evans pitched quite well in Double-A last season and could be ready for a big league look this summer.

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Seattle Mariners Transactions Luis Castillo (b. 1995)

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View Comments (48)
Post a Comment

48 Comments

  1. Braves Butt-Head

    6 months ago

    What does the F stand for lol

    5
    Reply
    • DarkSide830

      6 months ago

      Fantastic

      3
      Reply
    • PiazzaParty

      6 months ago

      Finding out what “J” stands for…”the secret to my middle name is behind that shrub! From this day fourth I will be known as Homer … *moves shrub* … JAY Simpson!”

      Reply
      • deweybelongsinthehall

        6 months ago

        Do the Mariners have names on the uniform? It would be funny if they traded the existing Castillo, gave the new one the same number, updated the yearbook with new stats and photos.

        Reply
    • NickTheDev

      6 months ago

      His middle name is Felipe.

      Reply
      • Flanster

        6 months ago

        Thanks. I was wondering what the “F” was his middle name

        1
        Reply
    • muskie73

      6 months ago

      Felipe

      baseball-reference.com/register/player.fcgi?id=cas…

      Reply
    • Logjammer D"Baggagecling

      6 months ago

      If you’ve seen Ted 2 you can only guess what the F stands for. And if you haven’t and you like stoner comedy buddy films. I highly (pun intended) recommend watching it. Watch the first one then Ted 2. And if you have Peacock watch the prequel.

      Reply
      • Bucket Number Six

        6 months ago

        Logjammer D’Highbrow.

        Reply
        • Bucket Number Six

          6 months ago

          If you’re into stoner comedy, I would suggest the originals, Cheech and Chong. Have a film fest with their movies on VHS or listen to their records from the 70s.

          Reply
        • Bucket Number Six

          6 months ago

          Except you must challenge yourself — no dope so you can analyze the art properly.

          2
          Reply
        • Logjammer D"Baggagecling

          6 months ago

          Yes but I haven’t smoked weed for 7 days. Outta weed and I’m broke. Building my tolerance back up.

          1
          Reply
        • Unclemike1526

          6 months ago

          This is a deliberate attempt to confuse Jed Hoyer and try to trade him the wrong Luis Castillo for something on the Cubs. The sad part is it will probably work.

          1
          Reply
    • MartialArtisan

      6 months ago

      “FREE” that’s why they signed him!

      3
      Reply
    • rottenboyfriend

      6 months ago

      Quit kidding yourself Mariner fans! This team has a zero chance of making the playoffs and winning the World Series! The Mariners have become the Miami Marlins of the West and ownership isn’t even trying to hide it! Their goal is making as much money as possible not fielding a competitive team! Until the fans take action and quit watching and attending the games nothing will change! Lowering attendance and the ratings on TV are the only ways we can impact ownership’s pocket book which is all he cares about!

      1
      Reply
  2. TheMichigan

    6 months ago

    Might be the first time we get a chance at 2 players with the same name on a roster, think last closest we got were the respective Austin Adams, one was pitching, and one was on waivers making them pitching together a theoretical possibility.

    1
    Reply
    • D2323

      6 months ago

      Mets had two pitchers named Bobby Jones like 25 years ago.

      1
      Reply
    • SteveC

      6 months ago

      Didn’t the Mariners have two guys with the same name in 1990-91?

      Reply
      • Hawktattoo

        6 months ago

        They did Martinez. Edgar and Tino

        2
        Reply
        • papad57

          6 months ago

          Clearly not the same name.

          Reply
        • Hawktattoo

          6 months ago

          Same last name..and yes different first names

          Reply
    • Dag Gummit

      5 months ago

      Every one in this thread so far were clearly not around for the era of Brian Hunters.

      Or simply not paying attention to the two middling journeymen. I’ll guess it was the latter.

      Don’t remember exactly. Some year from 1996-9

      Reply
  3. Dbird777

    6 months ago

    Clearly a dirty trick to confuse M’s fans into forgetting their lineup issues

    6
    Reply
    • C Us Sink

      6 months ago

      Nope, haven’t forgotten the lineup issues.

      2
      Reply
    • sad tormented neglected mariners fan

      6 months ago

      We are going to secretly trade Luis Castillo for all salary relief and no players and then put Luis F(antastic) Castillo in the rotation

      What’s the difference???

      3
      Reply
  4. BabyBoyBlueDiamond

    6 months ago

    We all know this wouldn’t be news if they already didn’t have a Luis Castillo on their team. This isn’t even worth a half a paragraph worth of information. Mariners fans are truly sick and tired of the way this organization handles its business.

    2
    Reply
  5. HalosHeavenJJ

    6 months ago

    So now they have Castilli?

    7
    Reply
  6. GB2

    6 months ago

    Need moar Luis Castillos

    2
    Reply
    • chrisjaybecker

      6 months ago

      Moar?

      Reply
  7. Ben K

    6 months ago

    The F stands for you want a bat? fuh·ged·da·boud·it.

    Reply
  8. Tom Emansk1

    6 months ago

    Luis Castillo of the Marines, not be confused with Luis Castillo of the Mariners.

    5
    Reply
    • chaneyb

      6 months ago

      He played for Orix last year, but I’ll allow it

      Reply
    • sad tormented neglected mariners fan

      6 months ago

      Luis Castillo of the mariner*

      Reply
  9. C Us Sink

    6 months ago

    Leave it to the Ms. Can he play infield and hit?

    2
    Reply
  10. deepseamonster32

    6 months ago

    Best pick up of the off-season, after the M’s trick the Red Sox into trading Tristan Casas for this guy.

    2
    Reply
  11. C Us Sink

    6 months ago

    The F stands for Frustrated Fans.

    4
    Reply
  12. Pronklington

    6 months ago

    How did this guy not get a shot before going overseas? Good hr rates and k/w rates.

    1
    Reply
  13. C Us Sink

    6 months ago

    What the F is this team doing?

    4
    Reply
  14. dsals214

    6 months ago

    Jerry, tomorrow, to every team in the league: Luis Castillo is on the block

    Reply
  15. Rosstradamus

    6 months ago

    Catalina F. Winemixer!

    1
    Reply
  16. Marinersdontsuck?

    6 months ago

    If Ms hit 54% this year, would that be considered like winning the world series?

    2
    Reply
    • sad tormented neglected mariners fan

      6 months ago

      If we get 88 wins it’s a successful season even if we miss the playoffs or flame out in the wild card

      1
      Reply
  17. M’s is for maybe

    6 months ago

    Certainly not overpowering stuff, but Woodward can do wonders. Having a guy capable of going multiple innings with a low walk rate is good enough for middle relief and could help manage the rotation’s bridge to build up innings early in the season. Good pick up. Low risk.

    1
    Reply
  18. Acura Dude

    6 months ago

    It’s too bad we can’t get the Luis Castillo who played 2B out of retirement to face both of these Luis Castillos!!

    Reply
    • MartialArtisan

      6 months ago

      “Great Scott! If Luis Castillo starts and then there’s a pitching change and Luis Castillo comes in from the bullpen it could destroy the very fabric of the space-time continuum!”

      1
      Reply
  19. bseblfevr

    6 months ago

    This years roster has too many no names !!

    1
    Reply
  20. kaoz

    6 months ago

    The Seattle Mariners aren’t going anywhere with mediocre batters. They need to something about that.

    1
    Reply
  21. Eric Baechler

    6 months ago

    I guess what’s most frustrating is that everyone across MLB and M’s fans know that the offense really struggled last season and to this point we have actually gotten worse than Better!!

    Still holding out hope Go M’s

    Reply

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