Luis Castillo

Fantasy News

• Mariners' Luis Castillo: Opening season as fifth starter

  Rotowire Mar 26, 2026

  Castillo is slated to make his first start during the Mariners' fifth game of the season Monday versus the Yankees at T-Mobile Park, Adam Jude of The Seattle Times reports. Emerson Hancock is the Mariners' de facto fifth starter while stepping into the rotation in place of the injured Bryce Miller (oblique), but he'll end up taking the hill for Seattle's fourth game Sunday versus Cleveland while Castillo moves to the back of the schedule. The rotation setup is likely just a means to get Castillo some extra rest after he started the Mariners' spring training finale Monday in San Diego. Castillo covered five innings and tossed 76 pitches in that outing, so he should be ready to handle a relatively normal workload in his 2026 debut.

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• Mariners' Luis Castillo: Strong finish to spring slate

  Rotowire Mar 25, 2026

  Castillo allowed one run on four hits and a walk while striking out five across five innings in Monday's matchup with the Padres. Castillo finished Cactus League play on a high note, allowing three runs over nine innings in his final two outings. It's certainly an encouraging development after the right-hander struggled to a 27.00 ERA in his first three appearances (six innings). Castillo, who's posted a sub-4.00 ERA in each of his last seven seasons, made a team-high 32 regular-season starts in 2025, finishing with a 3.54 ERA, 1.18 WHIP and 162:46 K:BB across 180.2 innings.

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• Mariners' Luis Castillo: Short outing in ALCS

  Rotowire Oct 17, 2025

  Castillo (1-1) allowed three earned runs on five hits and one walk while striking out one across 2.1 innings to take the loss in Game 4 of the ALCS on Thursday. Castillo got through two innings unscathed, but he allowed five of the first six hitters he faced in the third frame to reach base before being pulled. This was Castillo's first stumble of the postseason, as he had previously thrown six scoreless innings across two appearances in the ALDS. He has a less impressive 5:5 K:BB, but he has largely been a reliable arm for Seattle.

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• Mariners' Luis Castillo: Walks four in no-decision

  Rotowire Oct 6, 2025

  Castillo did not factor into the decision in Sunday's win over the Tigers in Game 2 of the American League Division Series. He allowed one hit and four walks while striking out three over 4.2 scoreless innings. The veteran right-hander matched his single-game high this season with the four free passes -- a number he reached only once during the regular season -- but he was effective nonetheless. Castillo recorded 13 swings-and-misses on 85 pitches and hung zeros, affording his team enough time to eventually win the game and even the series at one game apiece. His dominance has waned a bit in recent years, but Castillo is still an incredibly valuable piece of the Seattle rotation.

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• Mariners' Luis Castillo: Dominates Rockies in 11th win

  Rotowire Sep 25, 2025

  Castillo (11-8) earned the win Wednesday against the Rockies, allowing one run on one hit and one walk in 7.1 innings. He struck out 10. Castillo helped propel the Mariners to an American League West title, authoring one of his finest performances of the year. It was the first time this season that the right-hander piled up double-digit punchouts, and it was also his longest outing of the campaign. Castillo will be hoping to see most of his playoff action come at T-Mobile Park -- he'll close the regular season with a 2.60 ERA and 0.97 WHIP over 17 home starts versus a 4.71 ERA and 1.46WHIP across 15 road outings.

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• Mariners' Luis Castillo: Blanks Royals in 10th win

  Rotowire Sep 19, 2025

  Castillo (10-8) earned the win Thursday against the Royals, allowing three hits and striking out three across six scoreless innings. Castillo allowed only three baserunners through his six innings of work, leaning heavily on his breaking pitches -- mixing in 20 sliders and 16 changeups -- to induce weak contact. The right-hander was at 40 pitches through two innings but settled in nicely, needing just 84 pitches overall to log his third straight quality start. Castillo has been overall sharp in September with a 2.86 ERA across four outings and will look to keep it going in his final start of the regular season next week against the Rockies. While Colorado has reached base at the lowest rate in MLB this month, the hitter-friendly environment at Coors Field is always a factor.

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• Mariners' Luis Castillo: Another quality start Friday

  Rotowire Sep 13, 2025

  Castillo allowed one run on three hits and two walks while striking out five over six-plus innings in a no-decision Friday versus the Angels. Castillo has logged consecutive quality starts after a brutal stretch from Aug. 2 to Sept. 1 during which he went winless over six starts with a 7.31 ERA across 28.1 innings. The rebound has helped the Mariners get back on track as they continue to battle for the AL West lead. Castillo is now at a 3.76 ERA, 1.25 WHIP and 149:46 K:BB through 167.1 innings over 30 starts this season. The veteran right-hander is projected to make his next start at Kansas City.

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• Mariners' Luis Castillo: Bounces back in ninth win

  Rotowire Sep 7, 2025

  Castillo (9-8) earned the win over Atlanta on Sunday, allowing one run on four hits and no walks across six innings. He struck out six. It was a much-needed outing for Castillo, who earned his first win since July 28 -- he'd struggled to a 10.06 ERA in his previous four starts (17 innings). Overall, Castillo's ERA sits at 3.85 on the year with a 1.27 WHIP and 144:44 K:BB through 29 starts (161.1 innings). Castillo will look to build on Saturday's effort his next time out, currently lined up for next week against the Angels.

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• Mariners' Luis Castillo: Skid continues Monday

  Rotowire Sep 1, 2025

  Castillo (8-8) allowed five runs on six hits and a walk while striking out five over four innings to take the loss versus the Rays on Monday. Castillo was held under the five-inning mark for the third time in his last four starts. In that span, he's surrendered 19 runs over 17 innings, including six home runs, one of which came off the bat of Nick Fortes in the second inning of Monday's contest. Castillo is also winless in his last six outings, though he's taken just two losses in that span. For the season, he's now at a 3.94 ERA, 1.29 WHIP and 138:44 K:BB through 155.1 innings over 28 starts. He'll look to get back on track over the weekend in a road start at Atlanta.

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• Mariners' Luis Castillo: Ambushed early in no-decision

  Rotowire Aug 27, 2025

  Castillo did not factor into the decision Tuesday, allowing five runs on five hits and three walks over five innings in a 7-6 loss against San Diego. He struck out six. Castillo ran into immediate trouble Tuesday, surrendering all five of his earned runs in the first inning, punctuated by a Ramon Laureano grand slam. The 32-year-old hurler has hit a rough patch, pitching to a 5.45 ERA and 1.51 WHIP over 36.1 innings in his past seven starts. He's lined up to next take the mound Monday at Tampa Bay.

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• Mariners' Luis Castillo: Hit hard in no-decision

  Rotowire Aug 16, 2025

  Castillo came away with a no-decision in Friday's 11-9 win over the Mets, surrendering six runs on nine hits -- including three home runs -- and a walk over four innings. He struck out five. The ball was flying at Citi Field, as the Mariners set a club record with nine doubles, while the two teams combined for five total homers. Castillo did his part to add to the fireworks, serving up two longs balls to Francisco Lindor and another to Juan Soto. It's the second time this season he's been taken deep three times in the same game, but his 10.4 percent HR/FB rate on the season is actually his lowest mark since 2022. Castillo could have trouble keeping the ball in the park in his next start as well, which lines up to come on the road next week in Philadelphia.

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• Mariners' Luis Castillo: Settles for no-decision Friday

  Rotowire Aug 9, 2025

  Castillo didn't factor into the decision in Friday's 3-2 win over the Rays, giving up two runs on five hits over seven innings. He struck out five without walking a batter. All the damage off the veteran righty came on solo shots by Brandon Lowe in the first inning and Junior Caminero in the sixth, but all of Seattle's offense came on a three-run blast by Cal Raleigh in the eighth. Castillo delivered his 14th quality start of the year on 99 pitches (72 strikes), and he's allowed three earned runs or fewer in eight straight trips to the mound, posting a 2.25 ERA, 1.02 WHIP and 45:7 K:BB through 48 innings over that span. He'll look to get back in the win column in his next outing, which is scheduled to come on the road next weekend against the Mets.

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• Mariners' Luis Castillo: Labors in no-decision

  Rotowire Aug 2, 2025

  Castillo did not factor into the decision in Saturday's 6-4 extra-innings loss to the Rangers, allowing two runs on four hits and one walk with four strikeouts over 4.1 innings. Castillo allowed both of his runs in the third inning and failed to complete five frames for just the second time in 23 starts, throwing only 51 of 87 pitches for strikes. Still, the veteran has now surrendered three earned runs or fewer in seven straight outings, a stretch that includes four wins and four quality starts. He'll take a 3.22 ERA, 1.21 WHIP and 115:37 K:BB across 131.1 innings into a home matchup with the Rays next weekend.

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• Mariners' Luis Castillo: Falls to Milwaukee

  Rotowire Jul 23, 2025

  Castillo (7-6) took the loss Wednesday against the Brewers, allowing six runs (three earned) on 10 hits over five innings. He struck out seven. The 10 hits allowed matched a season high for Castillo, who would take his first loss since June 18 -- the right-hander had pitched to a stellar 1.46 ERA in four starts (24.2 innings) prior to Wednesday. Overall, Castillo sports a 3.30 ERA with a 1.24 WHIP and 107:36 K:BB over 21 starts (120 innings) this season. He'll look to get back on track in his next outing, currently scheduled for next week against the A's.

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• Mariners' Luis Castillo: Picks up win in one-sided victory

  Rotowire Jul 12, 2025

  Castillo (6-5) earned the win Friday, allowing three runs on six hits and two walks over five innings while striking out six in the 12-3 victory over the Tigers. Castillo shined early, yielding just one earned run through the first five innings before running into trouble opening the sixth, allowing back-to-back hits and another run before being removed with a runner on third. The 32-year-old entered the matchup coming off his best start of the season and has now posted a 3.60 ERA with 33 strikeouts and 11 walks over his last six outings.

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• Mariners' Luis Castillo: Solid in no-decision

  Rotowire Jun 29, 2025

  Castillo didn't factor into the decision Sunday against Texas, allowing one run on seven hits and two walks with four strikeouts over six innings. Castillo pulled himself out of a rough patch Sunday, snaring a quality start and not allowing a home run. The 32-year-old had allowed 16 runs (14 earned) in 22 innings over his previous four starts. He gave up eight home runs during that stretch after having yielded merely four round trippers in his first 12 starts. On the year, Castillo owns a 3.55 ERA, and he's scheduled to face the Pirates next time out.

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• Mariners' Luis Castillo: Turns in quality start

  Rotowire Jun 14, 2025

  Castillo allowed two runs on three hits and three walks while striking out seven over six innings in a no-decision Friday versus the Guardians. Castillo was able to limit the damage to back-to-back solo home runs by Nolan Jones and Steven Kwan in the third inning. After allowing just four homers in his first 12 starts of the year, Castillo has given up five long balls over his last two outings. On the positive side, Friday's effort was his eighth quality start, five of which have come over his last six games. Castillo has a 3.29 ERA, 1.27 WHIP and 67:26 K:BB through 79.1 innings this season. The veteran right-hander is projected to make his next start at home versus the Red Sox.

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• Mariners' Luis Castillo: Tagged for three homers

  Rotowire Jun 8, 2025

  Castillo (4-4) allowed six runs (four earned) on eight hits and struck out five without walking a batter over five innings, taking the loss Saturday versus the Angels. Castillo was able to limit the damage, as all three home runs he allowed were solo shots. However, the Angels' tying rally in the third inning yielded two unearned runs, and the Mariners failed to bounce back effectively after that. Prior to Saturday, Castillo had seemingly rounded into form with four straight quality starts, allowing just four runs over 25 innings in that stretch. He's now at a 3.31 ERA, 1.30 WHIP and 60:23 K:BB over 73.1 innings through 13 starts, and he's given up seven homers this year. The 32-year-old is projected to make his next start at home versus the Guardians.

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• Mariners' Luis Castillo: Blanks Twins in no-decision

  Rotowire Jun 1, 2025

  Castillo didn't factor into the decision Sunday against Minnesota, allowing four hits and two walks with five strikeouts over six scoreless innings. No runs were scored until the seventh inning of Sunday's contest, leaving Castillo without the victory despite the excellent outing. The 32-year-old has now logged four consecutive quality starts, and he owns a 1.44 ERA and a 22:5 K:BB during that stretch. While his strikeout rate is down from 9.0 K/9 in 2024 to 7.2 K/9 in 2025, Castillo holds a 3.03 ERA, which would be his best since 2022. He's expected to pitch next weekend against the Angels.

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• Mariners' Luis Castillo: Delivers quality start

  Rotowire May 25, 2025

  Castillo did not factor in the decision during Sunday's loss to Houston. He allowed three runs on nine hits and a walk over six innings while striking out six. Castillo coughed up a pair of runs in the third inning and one more in the sixth. He recorded his sixth quality start of the year and third in a row, but it wasn't a very efficient one. He threw a season-high 114 pitches (72 strikes) and worked around multiple threats. Castillo generated 14 whiffs, including eight with his fastball that averaged 96.4 mph. He's sporting a 3.32 ERA with a 50:21 K:BB through 62.1 frames. Castillo is lined up to face the Twins at home next weekend.

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