Luis F. Castillo - MLB News, Rumors, & Updates

Optioned to Triple-A The Mariners optioned Castillo to Triple-A Tacoma on Thursday.

Impact Castillo's time with the big-league club was less than spectacular, as he'll head back to the minors after giving up seven runs (six earned) over seven total innings alongside a 5:7 K:BB. With George Kirby (shoulder) not expected back until May, the Mariners are again left with an opening in their rotation, and it's currently unclear who will be promoted next to fill the gap.

4 DAYS AGO • ROTOWIRE

Control issues in no-decision Castillo didn't factor into the decision Wednesday against the Astros after giving up four runs (three earned) on six hits and five walks in four innings. He struck out three.

Impact Two walks followed by a trio of singles gave the Astros a three-run lead in the second inning. Castillo then allowed another run on an RBI walk by Brendan Rodgers in the third frame, which went unearned due to a throwing error by the right-hander on the previous sequence. Castillo had trouble putting hitters away Wednesday, needing 100 pitches to finish the outing, and he holds an uninspiring 7.71 ERA, 2.71 WHIP and 5:7 K:BB across seven innings (two starts) this season.

5 DAYS AGO • ROTOWIRE

Arozarena hits grand slam in 8th and draws winning walk in 9th as Mariners rally past Astros 7-6

Randy Arozarena hit a grand slam in the eighth and drew the game-winning walk in the ninth as the Seattle Mariners rallied for seven runs over the final two innings to beat the Hou...

5 DAYS AGO • ASSOCIATED PRESS

Drawing another start Castillo is scheduled to make his next start Wednesday versus the Astros in Seattle, Matt Kawahara of the Houston Chronicle reports.

Impact Castillo made his Seattle debut and his first MLB start in San Francisco on Friday, when he struck out two and allowed three runs on six hits and six hits over three innings in a no-decision. While not overly impressive, Castillo's performance was good enough to earn him another turn through the rotation, but he likely won't be in store for an extended stay with Seattle. As soon as George Kirby (shoulder) completes a rehab assignment and is deemed ready to make his MLB debut, Castillo will be the odd man out of the rotation, barring injuries to any of Seattle's other four starters.

APRIL 6 • ROTOWIRE

Drawing another start Castillo is scheduled to make his next start Wednesday versus the Astros in Seattle, Matt Kawahara of the Houston Chronicle reports.

APRIL 6 • ROTOWIRE

Inefficient in first start Castillo allowed three runs on six hits and two walks while striking out two over three innings, taking a no-decision in Friday's extra-innings loss to the Giants.

Impact Castillo's first major-league start was nothing to write home about. He allowed an RBI single to Matt Chapman in the first inning and a two-run double to LaMonte Wade in the second. Castillo finished with 39 strikes on 68 pitches and forced the Mariners to dip into their bullpen early, with all eight relievers getting action in this contest. Castillo's only other major-league experience came in 2022 with the Tigers, when he threw 3.2 innings scoreless innings of relief. The fifth spot in the Mariners' rotation remains unsettled until George Kirby (shoulder) is ready for his season debut, but if Castillo gets another turn, he's lined up to face the Astros next week.

APRIL 5 • ROTOWIRE

Contract selected for start The Mariners selected Castillo's contract from Triple-A Tacoma, and he's scheduled to start Friday against the Giants.

Impact The right-hander allowed one run over 5.2 innings during his lone start for Tacoma this year and will now get a look in the big-league rotation. Castillo's only major-league experience came with Detroit in 2022, when he delivered a 4:0 K:BB over 3.2 scoreless frames in three appearances. He spent the 2023 and 2024 campaigns pitching in Japan and had a 3.01 ERA across 143.1 innings before inking a minor-league deal with Seattle during the offseason.

APRIL 4 • ROTOWIRE

Expected to start Friday Castillo is expected to be promoted from Triple-A Tacoma to start against the Giants on Friday, Adam Jude of The Seattle Times reports.

Impact Not to be confused with the Luis Castillo already in Seattle's big-league rotation, the 30-year-old righty made his MLB debut with the Tigers last season and threw 3.2 shutout frames while striking out four batters across three appearances. He's now slated to make his first start in the majors, and a strong showing could buy him another turn through the rotation while the Mariners await George Kirby's (shoulder) return from the IL.

APRIL 3 • ROTOWIRE

Inaugural Marlins HOF induction an 'emotional' moment for 'Mr. Marlin' MIAMI -- “Where legends come to life.” Jeff Conine aka “Mr. Marlin” was immortalized as the inaugural member of the Marlins Legends Hall of...

MARCH 30 • MLB.COM

Sent out of big-league camp The Mariners reassigned Castillo to minor-league camp Monday.

Impact After spending the past two seasons in Japan's Nippon Professional Baseball, Castillo returned stateside over the winter, joining the Mariners on a minor-league deal that included an invitation to spring training. The 30-year-old didn't mount much of a case for a spot in Seattle's Opening Day bullpen, giving up three earned runs on nine hits and two walks while striking out five over five innings across his three Cactus League appearances. Castillo is expected to report to Triple-A Tacoma to begin the 2025 season.

MARCH 10 • ROTOWIRE

Nets NRI deal from Seattle The Mariners signed Castillo to a minor-league contract Tuesday that includes an invitation to spring training, Jon Heyman of the New York Post reports.

Impact Not to be confused with the other Castillo of the same name, this Castillo spent the previous two seasons in Japan pitching for the Chiba Lotte Marines and then Orix Buffaloes. The reliever made three appearances with the Tigers in 2022, tossing 3.2 scoreless innings.

JANUARY 28 • ROTOWIRE

Luis Castillo, M's edge Rays 1-0 in pitchers' duel Luis Castillo struck out eight in six innings and Mike Ford delivered an RBI single in the Seattle Mariners’ 1-0 win over the Tampa Bay Rays...

SEPTEMBER 8, 2023 • KANSASCITY.COM

Mariners can't capitalize as Castillo keeps Rangers at bay ARLINGTON -- Luis Castillo was dominant once again with seven innings of one-run ball and six strikeouts, but the Mariners were unable to ca...

JUNE 3, 2023 • MLB.COM

'Back on a roll': Castillo quiets Bucs with 10-K scoreless gem SEATTLE -- Luis Castillo seemed to take Friday night’s home-run barrage personally. One day after Pittsburgh scorched Seattle pitchers for 1...

MAY 28, 2023 • MLB.COM

Breaking down Castillo's early May slump BOSTON -- The curious case of Luis Castillo continued on Tuesday in perhaps his most puzzling start yet since joining the Mariners ahead of...

MAY 17, 2023 • MLB.COM

Mariners' Luis Castillo 'electric' in flirting with perfecto in win over Rockies Castillo, who carried a perfect game into the seventh inning, was that good Sunday.

APRIL 17, 2023 • THEATHLETIC.COM

Mariners' Teoscar Hernández goes deep twice, upstages teammate Luis Castillo Seven different Mariners had hits in the 11-2 win against the Angels. "We needed a night like tonight," Seattle manager Scott Servais said.

APRIL 5, 2023 • THEATHLETIC.COM

Shades of October? Mariners lean on Luis Castillo, Ty France and boisterous crowd It's a new year. They have new goals. But at the end of the day, the M's won the way they always seem to. "It feels like we never left."

MARCH 31, 2023 • THEATHLETIC.COM

Will Brennan's hair-raising liner off Luis Castillo is Guardians' first hit of 2023 Luis Castillo stayed in the game and struck out the next three batters for the Mariners.

MARCH 31, 2023 • CLEVELAND.COM

Partner Content | MLB Opening Day prop bets: Fade Luis Castillo's strikeout prop One of the most glorious days on the sports calendar is here at last. It’s Opening Day.

MARCH 30, 2023 • THESTAR.COM

Guardians-Mariners Opening Day starting pitchers: Bieber vs. Castillo Two postseason teams from last season will ride their aces when Shane Bieber leads the Guardians into Seattle on March 30 to face Luis Casti...

MARCH 24, 2023 • MLB.COM

All the big prizes on the table for Castillo PEORIA, Ariz. -- Luis Castillo isn’t headed to the World Baseball Classic, but he could be headed to a monster season. And he makes it no se...

FEBRUARY 28, 2023 • MLB.COM

Loses spot on 40-man roster Castillo cleared waivers and was outrighted to Triple-A Toledo on Thursday.

Impact Castillo appeared in three games for the Tigers in 2022, so it's not a major surprise he won't remain on the 40-man roster through the offseason. He spent most of the year at Toledo, where he had a 1.74 ERA, 1.22 WHIP and 39:11 K:BB over 41.1 innings.

NOVEMBER 11, 2022 • ROTOWIRE

Returning to minors Castillo was optioned to Triple-A Toledo after Thursday's extra-inning loss to the Guardians, Evan Woodbery of MLive.com reports.

Impact The 27-year-old was called up from Triple-A over the weekend and delivered two scoreless frames in two appearances during his first taste of the big leagues. Castillo will return to Toledo, where he has a 1.56 ERA, 1.20 WHIP and 32:10 K:BB across 34.2 innings.

AUGUST 11, 2022 • ROTOWIRE

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Arozarena hits grand slam in 8th and draws winning walk in 9th as Mariners rally past Astros 7-6