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Seattle Mariners

Mariners excited to see what Luis Castillo can accomplish with full season in Seattle

Getty Images Seattle Mariners starting pitcher Luis Castillo reacts at the end of the sixth inning Friday during Game One of the American League wild-card series at Rogers Centre in Toronto.  (Getty Images)
By Ryan Divish Seattle Times

PEORIA, Ariz. – While any drama about last year’s opening-day starter seemed a bit manufactured, this year there’s no reason to even ask which Mariners pitcher will jog to the T-Mobile Park mound March 30 to open the 2023 season.

Luis Castillo made that decision easy for the Mariners and manager Scott Servais over the course of the final few months of the 2022 season and two incredible outings in the team’s first postseason appearance in two decades.

“It opened my eyes a lot,” Servais said. “We knew we were getting a quality pitcher and a really good person. I just think he elevated his game big time. I think from the time we had him, just on the average, I think he threw maybe a mile and a half or two miles per hour harder. His stuff got better.

“We knew he was competitive, and all of our reports say this guy likes the big moments. But he hadn’t been in a lot of them. From the first time he put on our uniform in Yankee Stadium to the end, he was phenomenal. Just awesome.”

In 11 regular-season starts with Seattle, Castillo posted a 4-2 record with a 3.17 ERA. In 65⅓ innings pitched, he struck out 77 batters with 17 walks. After beating the Yankees in New York in his first start with the Mariners, he faced them again his next start, which came at T-Mobile Park. Castillo was brilliant, tossing eight scoreless innings, allowing just three hits with two walks and seven strikeouts. The Mariners eventually won the game 1-0 in the 13th inning.

In the postseason, Castillo tossed 7⅓ scoreless innings vs. the Blue Jays, allowing one hit with five strikeouts. He came back to pitch seven innings and allowed three runs on five hits with seven strikeouts against the Astros.

“It was an unforgettable experience,” Castillo said through interpreter Freddy Llanos. “It was a long time before this team had been in the playoffs. What stood out to me most was the work that everybody put in, whether it’s the players, the coaches, we all put in that work to get as far as we did.”

Besides his No. 1-level stuff, the Mariners were willing to give up four prospects, including talented shortstops Noelvi Marte and Edwin Arroyo, in a trade with the Reds because Castillo was under club control through this season. The trade got even better for Seattle, however, when he agreed to a five-year, $105 million extension in late September.

“You know that this is a business and one day you can be here and then you can be somewhere else in a short time,” Castillo said. “But when I got here, I just felt very comfortable. I felt comfortable even with all the talent that we had here. I knew that I wanted to stay.”

The idea of having a full season’s worth of starts from Castillo and what it could mean with a quality team supporting him has some people thinking about him starting the All-Star Game at T-Mobile, winning a Cy Young Award and carrying the Mariners to the World Series.

“I’m here full season and I’m going to be prepared to see if we can take the team even further,” Castillo said.