Player Outlook
The 31-year-old was acquired by the Mariners at the 2022 trade deadline and inked a five-year extension two months later; during his first full season with the team in 2023 he posted a 3.34 ERA, 1.10 WHIP and 219:56 K:BB in 197 innings. The campaign ended on a sour note, however, with nine runs allowed in Luis Castillo's final two starts, including a 2.2-frame outing against Texas that eliminated Seattle from playoff contention. His strikeout and walk rates (27.3 percent and 7.0 percent, respectively) stayed stable, but his 1.3 HR/9 was the highest since his sophomore season in 2018. Castillo typically excelled at inducing groundballs while playing for the Reds with a career rate north of 50 percent, but he saw his flyball rate jump nearly nine points to 42.4 percent in 2023 while his groundball rate dipped below 40 percent. A barrel rate of 9.4 percent and hard-hit rate of 41.8 percent each represent career worsts, which also lines up with a 3.81 xFIP. Some regression may be in store for Castillo if he's unable to rein in those trends, but he's still likely a fairly safe bet for fantasy managers in 2024 given his track record.

Fantasy Stats

Year fpts
Fantasy Points
fpts/g
Fantasy Points per Game
ip
Innings Pitched
w
Wins
l
Losses
sv
Saves
so
Strikeouts
bb
Base on Balls (Walk)
era
Earned Run Average
whip
Walks and Hits Allowed Per Inning
2024 — — — — — — — — 0.00 0.00
2023 513.515.6 197.0 14 9 — 219 56 3.34 1.10
2022 390.515.6 150.3 8 6 — 167 45 2.99 1.08
3y Avg. 417.513.9 178.3 10 10 — 193 59 3.48 1.19
Projections Powered by
Fantasy Performance by Week
96%
Roster
94%
Start
#4
SP Rank

Fantasy News

  • Mariners' Luis Castillo: Called upon for Opening Day start

    Manager Scott Servais said Monday that Castillo will start the Mariners' March 28 season opener versus the Red Sox at T-Mobile Park, Ryan Divish of The Seattle Times reports. The Mariners have better choices than most teams to take the ball Opening Day, but Castillo always loomed as the obvious option. The 31-year-old right-hander posted a 3.34 ERA and 219:56 K:BB over 197 innings covering 33 starts for Seattle in 2023.
    ... See More ... See Less
  • Mariners' Luis Castillo: Encouraged by early velocity

    Castillo, who fired a couple of 96-mph fastballs during his Cactus League debut Monday against the Reds, is encouraged he has that level of velocity early in camp, Daniel Kramer of MLB.com reports. "It's telling me that I'm healthy," Castillo said. "We're going to continue to be in the same routine, and hopefully that velocity will keep going up." Castillo notably opened spring training a year ago throwing his four-seamer in the high 80s, so the increase is certainly noteworthy. The veteran right-hander, who fell just one win short of tying his career high of 15 victories last season, will once again helm the Mariners' rotation and limited Cincinnati to a walk over two hitless innings in his spring debut. Castillo plans to continue relying heavily on his fastball in 2024, considering hitters mustered just a .165 average and .384 slugging percentage against it while swinging and missing 33 percent of the time in 2023.
    ... See More ... See Less
  • Mariners' Luis Castillo: Season ends on sour note

    Castillo (14-9) took the loss Saturday, giving up four runs on five hits and five walks over 2.2 innings as the Mariners were downed 6-1 by the Rangers. He struck out four. The right-hander picked the worst possible time to have his shortest outing of the season, as the loss eliminated the M's from postseason contention. Castillo got the hook after 86 pitches (52 strikes), and his control deserted him in September -- he issued multiple free passes in five of six starts on the month, leading to a 4.96 ERA and 38:18 K:BB through 32.2 innings. He also came up just short of his first 200-inning campaign, finishing with a career-high 197 innings over 33 starts. Castillo still has four years left on the $108 million contract extension he signed last September, and the 30-year-old should anchor the Seattle rotation once again in 2024.
    ... See More ... See Less
  • Mariners' Luis Castillo: Cruises to win

    Castillo (14-7) allowed two runs on five hits and three walks while striking out eight over seven innings to earn the win Tuesday over the Athletics. Castillo earned his fifth quality start in his last six outings with a solid performance Tuesday. It took the Athletics until the seventh inning to get on the board, and the Mariners' lead was never in any real danger. Castillo now has a 3.06 ERA, 1.05 WHIP and 207:50 K:BB through 188.1 innings across 31 starts this season. He's lined up for a critical home start versus the Astros early next week as the Mariners continue to battle for the AL West lead.
    ... See More ... See Less
  • Mariners' Luis Castillo: Strikes out eight in win

    Castillo (13-7) earned the win Wednesday, allowing two runs on three hits and three walks over six innings in a 3-2 victory over the Angels. He struck out eight. Castillo's now picked up wins in seven of his last nine starts, with his most recent loss coming on July 14. He's up to 199 strikeouts on the campaign, leaving him poised to top the 200 mark for the second time in his seven-year career. Castillo sports a 3.08 ERA with a 1.04 WHIP through 30 starts (181.1 innings) this season. He'll look to keep rolling in his next outing, currently scheduled for early next week in Oakland.
    ... See More ... See Less
  • Mariners' Luis Castillo: Six scoreless in win

    Castillo (12-7) earned the win Thursday, allowing four hits and four walks over six scoreless innings against the Rays. He struck out eight. Castillo wasn't particularly efficient Thursday, issuing four walks and allowing at least one baserunner in all but one of his six innings. However, the 30-year-old ace worked around the traffic and held Tampa Bay scoreless to win his sixth consecutive decision. During that eight-start span, Castillo has posted a 3.24 ERA, 1.06 WHIP and 49:12 K:BB across 50 innings. His next start is expected to be at home versus the Angels early next week.
    ... See More ... See Less
  • Mariners' Luis Castillo: Five earned runs in no-decision

    Castillo did not factor into the decision Saturday, allowing five runs on eight hits and two walks over five innings in an 8-7 win over the Mets. He struck out two. The 30-year-old ace held the Mets scoreless until a single and a hit-by-pitch preceded DJ Stewart's three-run homer in the fourth inning. Despite Castillo's substandard performance, the right-hander was in line for the victory before New York tied the game in the eighth. The no-decision snapped a string of four consecutive starts in which Castillo earned a win, posting a 2.00 ERA, 0.78 WHIP and an impressive 26:4 K:BB across 27 innings during that streak. He'll look to get back on track in his next outing, which is tentatively scheduled to take place in Tampa Bay next week.
    ... See More ... See Less
  • Mariners' Luis Castillo: Cruises to victory

    Castillo (10-7) yielded one run on five hits over seven innings Monday, striking out nine and earning a win over the White Sox. After giving up a run in the first frame, Castillo fired six shutout innings in the dominant win. It was his first outing without issuing a walk since July 14. The veteran righty owns a terrific 58:9 K:BB in 50 innings since the All-Star break but also has a 3.78 ERA during that stretch. Castillo's season ERA dropped to 3.15 after Monday's win. His next outing is lined up to be at home against the Royals.
    ... See More ... See Less
  • Mariners' Luis Castillo: Bounces back versus Baltimore

    Castillo (8-7) allowed one run on two hits and two walks while striking out eight over six innings to earn the win Friday over the Orioles. Castillo was tagged for seven runs over six innings versus the Angels a week ago, but he bounced back against the American League's top team. He's racked up four quality starts over six outings since the All-Star break, though he has just two wins to show for it in that span. The ace right-hander has a 3.14 ERA, 1.03 WHIP and 163:36 K:BB through 143.1 innings over 24 starts this season. Castillo is projected for a favorable road start in Kansas City next week.
    ... See More ... See Less
  • Mariners' Luis Castillo: Roughed up in no-decision

    Castillo allowed seven runs on 10 hits and a walk while striking out six over six innings in a no-decision versus the Angels on Friday. Castillo matched his season high in runs allowed, but he was still able to hang on for six innings. Six of the runs on his line came from three home runs. The poor outing pushed Castillo's ERA up to 3.21 with a 1.05 WHIP and 155:34 K:BB through 137.1 innings over 23 starts this season. He's generally been a reliable ace for the Mariners, making this look like a bump in the road rather than the start of a downward trend. Castillo is projected for a tough home start versus the Orioles next week.
    ... See More ... See Less
  • Mariners' Luis Castillo: Tosses six shutout frames

    Castillo (7-7) yielded two hits and a walk over six scoreless innings Sunday, striking out seven and earning a win over Arizona. Castillo retired the last eight batters he faced and allowed just one Diamondback to reach scoring position in his dominant outing. He's issued two or fewer walks in seven straight outings, posting a 48:6 K:BB during that stretch. His season ERA is down to an impressive 2.88 with a 149:33 K:BB through 131.1 innings. Castillo's next start is projected to be on the road against the Angels.
    ... See More ... See Less
  • Mariners' Luis Castillo: Notches nine strikeouts Monday

    Castillo allowed two runs on four hits and two walks while striking out nine batters over seven innings in a no-decision against Minnesota on Monday. Both of the runs and three of the four hits Castillo gave up came in the fifth inning. The veteran hurler was otherwise dominant, racking up 18 swinging strikes and nine punchouts. Castillo finished with his third quality start over his past four outings, though he's managed only one win over that stretch. He's been a consistent and reliable starter in his first full season with Seattle, completing at least five frames in all 21 of his starts and compiling a 3.02 ERA, 1.04 WHIP and 142:32 K:BB over 125.1 innings.
    ... See More ... See Less
  • Mariners' Luis Castillo: Strikes out 11 in no-decision

    Castillo allowed three runs on six hits and two walks while striking out 11 over six innings in a no-decision during Wednesday's 6-3 loss to the Twins. Castillo's 11 strikeouts were a season high, and he earned his third quality start in his last five outings. He also gave up multiple home runs for the sixth time in eight starts, as Edouard Julien and Max Kepler tagged Castillo for solo shots in the fifth inning. The veteran right-hander is at a 3.04 ERA, 1.05 WHIP and 133:30 K:BB through 118.1 innings over 20 starts. He's projected for a rematch with the Twins in Minnesota next week.
    ... See More ... See Less
  • Mariners' Luis Castillo: Takes seventh loss

    Castillo (6-7) took the loss Friday, allowing three runs on four hits over five innings against the Tigers. He struck out five. Castillo is unlucky to have a losing record this year, as he's posted some of the best pitching stats in the league so far this year. The right-hander's 1.03 WHIP ranks sixth in MLB and would be a career-best mark if the season ended today. The veteran's next start is tentatively slated to be against the Twins on Wednesday.
    ... See More ... See Less
  • Mariners' Luis Castillo: Stumbles against Rays

    Castillo allowed six runs (five earned) on eight hits over six innings in Sunday's win over Tampa Bay. He struck out six and did not factor in the decision. Castillo eventually settled in to toss three scoreless frames after yielding six runs in the first three innings Sunday. He fired 70 of 95 pitches for strikes, including 19 whiffs, his highest total since June 9. The five earned runs charged to him tied his season high; he posted a 2.32 ERA in seven starts between Sunday's start and May 16 when he was tagged with five earned runs against Boston. For the season, Castillo is sporting a 3.14 ERA and an impressive 114:28 K:BB through 17 starts. His next start is projected to be in Houston.
    ... See More ... See Less
  • Mariners' Luis Castillo: Picks up win Monday

    Castillo (5-6) earned the win over Washington on Monday, allowing three runs (two earned) on seven hits and one walk while striking out seven batters over seven innings. Castillo allowed a solo homer in each of the first and second frames but settled down thereafter and finished his outing by retiring the final seven batters he faced. The right-hander racked up an impressive 17 swinging strikes and tied his season high by completing seven frames. The victory snapped a personal four-game losing streak for Castillo, though he had maintained a decent 3.42 ERA and 1.23 WHIP during that stretch. Though the veteran's record is just 5-6 on the season, he's been very effective with a 2.86 ERA, 1.06 WHIP and 108:28 K:BB over 94.1 innings.
    ... See More ... See Less
  • Mariners' Luis Castillo: Drops to 4-6

    Castillo (4-6) took the loss against the Yankees on Wednesday, allowing three runs on four hits and four walks while striking out three batters over five innings. Though Castillo yielded just four hits, two of those left the yard, and he also issued four walks. The last number is particularly concerning because it comes on the heels of the season-high six walks he issued against Miami in his previous outing. Prior to the pair of wild performances, Castillo hadn't handed out more than two free passes in any of his first 13 appearances of the season. The right-hander has now lost each of his past four starts, though that's partly due to poor run support, as he's posted a respectable 3.42 ERA over that span. Castillo will look to get back in the win column -- and to exhibit better control -- in his next outing, which is tentatively lined up to come at home against Washington.
    ... See More ... See Less
  • Mariners' Luis Castillo: Walks six in loss

    Castillo dropped to 4-5 after allowing two runs on two hits and six walks while striking out six over 5.2 innings in Wednesday's 4-1 loss to the Marlins. Castillo hadn't walked more than two batters in any of his starts this season, so it's safe to call this one an anomaly. Despite the lackluster control, he still turned in a decent effort, though it was also his third straight loss. All five of his losses have come in his last seven outings. Castillo still has an excellent 2.73 ERA with a 1.02 WHIP and 98:23 K:BB over 82.1 innings across 14 starts this season. He'll look to regain his command in his next start, tentatively scheduled to be on the road versus the Yankees next week.
    ... See More ... See Less
  • Mariners' Luis Castillo: Mixed results in loss

    Castillo (4-4) allowed five runs (three earned) on six hits and a walk while striking out 10 over six innings, taking the loss Friday versus the Angels. This was Castillo's second 10-strikeout effort of the season, both of which have come in his last three starts. He also gave up multiple home runs for the second time this year, and the five runs allowed were the second-highest total he's given up. All in all, it was a middling performance for the Mariners' ace, who now has a 2.70 ERA, 0.99 WHIP and 92:17 K:BB through 76.2 innings across 13 starts. He's projected for a home start versus the Marlins next week.
    ... See More ... See Less
  • Mariners' Luis Castillo: Takes tough-luck loss

    Castillo (4-3) yielded one run on five hits and a walk over seven innings Friday, striking out six and taking a loss against Texas. Castillo fired five shutout frames before finally coughing up a run in the sixth. The Mariners were shut out, resulting in him taking his first loss since May 16. He's posted a 24:5 K:BB while giving up just one run over his last three starts. Castillo had allowed 12 earned runs over his previous three outings and now owns 2.55 ERA. He's lined up to face the Angels on the road next week.
    ... See More ... See Less

Recent Tweets