Luis Castillo
SP SEA
Sun 9/7/25 3:14 PM

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.
EDGE Analysis
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.

Luis Castillo
SP SEA
Mon 9/1/25 10:41 PM

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.
EDGE Analysis
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.

Luis Castillo
SP SEA
Wed 8/27/25 1:50 AM

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.
EDGE Analysis
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.

Luis Castillo
SP SEA
Wed 8/20/25 7:57 PM

Castillo (8-7) took the loss Wednesday against the Phillies, allowing three runs on 10 hits and two walks over four innings. He struck out two.
EDGE Analysis
Castillo has now allowed nine runs on 19 hits across just eight innings in his last two starts after pitching to a 2.25 ERA in his previous eight outings (48 innings). Overall, Castillo's ERA sits at 3.57 with a 1.27 WHIP and 127:40 K:BB across 26 starts (146.1 innings). The 32-year-old right-hander will look to get back on track his next time out, currently scheduled to come next week at home against the Padres.

Luis Castillo
SP SEA
Sat 8/16/25 9:23 AM

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.
EDGE Analysis
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.

Luis Castillo
SP SEA
Sat 8/9/25 9:45 AM

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.
EDGE Analysis
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.

Luis Castillo
SP SEA
Sat 8/2/25 10:15 PM

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.
EDGE Analysis
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.

Luis Castillo
SP SEA
Tue 7/29/25 2:14 AM

Castillo (8-6) earned the win over the Athletics on Monday, allowing one run on five hits and no walks while striking out four batters over seven innings.
EDGE Analysis
Castillo was more crafty than overpowering in the outing, as he notched just six whiffs and four punchouts. The veteran right-hander allowed only six baserunners (on five hits and one hit batsman), with the Athletics' lone run coming on a fielder's choice in the sixth frame. This was Castillo's 13th quality start of the campaign, tied for 11th-most in the majors. He's putting together another steadily reliable season, posting a 3.19 ERA, 1.21 WHIP and 111:36 K:BB through 127 innings spanning 22 starts.

Luis Castillo
SP SEA
Wed 7/23/25 7:17 PM

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.
EDGE Analysis
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.

Luis Castillo
SP SEA
Sat 7/19/25 1:44 AM

Castillo (7-5) allowed three hits and two walks while striking out seven over 6.2 scoreless innings to earn the win over the Astros on Friday.
EDGE Analysis
Castillo has won three straight starts, allowing just three runs over 18.2 innings in July. The right-hander threw 66 of 100 pitches for strikes in this outing, which was his fifth scoreless performance of the campaign. Castillo has been in peak form in 2025 with a 3.21 ERA, 1.21 WHIP and 100:36 K:BB through 115 innings over 20 starts. He's projected for a home start versus the Brewers next week.