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Hisashi Iwakuma | Starting Pitcher | #18

Team: Seattle Mariners
Age / DOB:  (36) / 4/12/1981
Ht / Wt:  6'3" / 210
Bats / Throws: Right / Right
College: None
Drafted: 2012 / UDFA / SEA
Contract: view contract details
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Latest News

Recent News

Mariners general manager Jerry Dipoto said in a radio interview on KJR-AM Friday that Hisashi Iwakuma (shoulder) isn't expected to be game-ready until late May or early June.
Iwakuma underwent an arthroscopic debridement procedure on his right shoulder in September after being limited to just six starts in 2017. He re-signed with the Mariners on a minor league contract that will pay him $2.5 million if he's in the majors, with another $6 million available in incentives. Fri, Dec 1, 2017 04:30:00 PM

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Jon Heyman of FanRag Sports reports that Hisashi Iwakuma's minor league contract with the Mariners is worth $2.5 million if he's in the majors, with another $6 million available in incentives.

Iwakuma probably could've gotten a guaranteed contract somewhere else, but he preferred to remain in the only big league organization he's known. He'll still get paid a fair amount if he stays healthy and remains in the Mariners' rotation, although that's no given after he was limited to just six starts in 2017 due to injury.
Fri, Dec 1, 2017 08:51:00 AM

Mariners signed RHP Hisashi Iwakuma to a minor league contract with an invitation to spring training.

This comes after Iwakuma told the Japan Times last week that he was hoping to hammer out an agreement to return to Seattle. It was an easy call for the Mariners to decline his $10 million option for 2018 earlier this month, but they don't risk anything bringing him back at these terms. The veteran right-hander made just six starts this season due to shoulder issues and required an arthroscopic debridement in September. It's unclear if he'll be ready for the start of 2018.
Mon, Nov 27, 2017 02:42:00 PM

Hisashi Iwakuma told the Japan Times that the Mariners have made him an offer to return.

Iwakuma became a free agent earlier this month after the Mariners declined his $10 million option for 2018. The veteran right-hander says that a return is "not a done deal," but "hopefully I will be able to make a positive announcement soon." Iwakuma, 36, was limited to just six starts this season due to shoulder issues and required an arthroscopic debridement in September. He's hoping to be ready around the start of next season.
Source: Japan Times
Mon, Nov 20, 2017 09:31:00 AM

Mariners declined RHP Hisashi Iwakuma's $10 million club option for 2018.

Iwakuma went down with a shoulder injury in early May and never returned to the field, eventually requiring an arthroscopic debridement in September. The veteran right-hander will turn 37 years old next April.
Thu, Nov 2, 2017 02:18:00 PM

Hisashi Iwakuma underwent an arthroscopic debridement on his ailing right shoulder.

He won't resume throwing for five months, which could put the start to his 2018 season in jeopardy. The 36-year-old hurler finished the injury-plagued 2017 season with a 4.35 ERA, 1.26 WHIP and 16/12 K/BB ratio in just 31 innings over his six starts.
Fri, Sep 29, 2017 07:21:00 PM

Hisashi Iwakuma admitted Tuesday that there is something structurally wrong with his right shoulder.

He's said to be considering all options, some of which are surgical procedures. Iwakuma hit the disabled list in early May with inflammation in his right shoulder and was never able to return to the Mariners' rotation, finishing the 2017 season with a 4.35 ERA in six starts. The 36-year-old is scheduled to become a free agent in November.
Tue, Sep 19, 2017 07:26:00 PM

Mariners manager Scott Servais acknowledged Tuesday that Hisashi Iwakuma (shoulder) is likely done for the year.

Iwakuma landed on the disabled list at the beginning of May with right shoulder inflammation and he hasn't been able to get over the hump in his rehab. The 36-year-old is scheduled to become a free agent in November, having made just six total starts in 2017.
Tue, Sep 19, 2017 06:48:00 PM

Hisashi Iwakuma is looking for additional opinions from doctors as he struggles to rehab his shoulder.

While the Mariners haven't ruled him out, they haven't been counting on Iwakuma to return this season. He's been on the shelf since the beginning of May with what was called shoulder inflammation.
Thu, Sep 14, 2017 05:03:00 PM

Hisashi Iwakuma (shoulder) played catch in the outfield on Wednesday.

Iwakuma has been stepping up his efforts of late, as he threw a bullpen session on Tuesday and is expected to throw a simulated game on Saturday. While he is making clear progress in his recovery from a right shoulder injury, it remains uncertain as to whether he will be able to return to action before the end of the season.
Wed, Sep 6, 2017 05:32:00 PM

Hisashi Iwakuma (shoulder) will face live hitters in a simulated setting on Saturday.

Iwakuma made it through another bullpen session Tuesday without issue and is finally trending toward a return to the Mariners' active roster, though it's not a certainty he will actually make it back before the end of the regular season. "He's been out a long, long time," manager Scott Servais said Tuesday. "Unfortunately, his arm hasn't responded real consistently. I hope we can get him out there, but that would just be a bonus right now."
Wed, Sep 6, 2017 11:30:00 AM

Hisashi Iwakuma (shoulder) threw 40 pitches in a bullpen session on Saturday.

Iwakuma hasn't made enough progress for the Mariners to project him to return before the end of the year. Even if he's ready to pitch, the arm strength probably isn't there to allow him to get major league hitters out.
Sat, Sep 2, 2017 07:06:00 PM

Mariners manager Scott Servais said Hisashi Iwakuma (shoulder) looked only "OK" in his bullpen session Monday.

"He’ll probably throw another bullpen," Servais told reporters after the workout. "We’re running out of time. Guys have to be able to ramp it up pretty quickly to have any chance to make an impact for us down the stretch ... Last time, Kuma got to this point, then he got to the simulated game, we put a hitter in there, and it was like, `Whoa, this isn’t even close.’ It didn’t feel good." The veteran right-hander has been out since early May and there is no timetable for him to embark on a minor league rehab assignment. He might not make it back this year.
Tue, Aug 22, 2017 08:22:00 PM

Hisashi Iwakuma (shoulder) was scheduled to throw a bullpen session Monday.

Iwakuma is ready to test his shoulder again after he struggled with his mechanics during a simulated game earlier this month. He's already experienced multiple setbacks, so the Mariners can't count on him at this point. Iwakuma has been out since early May.
Tue, Aug 22, 2017 10:27:00 AM

Hisashi Iwakuma (shoulder) struggled with his mechanics during a simulated game on Friday.

The 25-pitch bullpen session did not go well by all accounts. Iwakuma had been ticketed for a potential simulated game early next week, which will now be pushed back. With all of the injuries facing the M's rotation, they may be forced to look outside the organization for additional help.
Fri, Aug 11, 2017 07:40:00 PM

Depth Charts

Batters
PosRoleName
C1Mike Zunino
2Mike Marjama
3David Freitas
1B1Ryon Healy
2Daniel Vogelbach
3Mike Ford
2B1Robinson Cano
2Gordon Beckham
SS1Jean Segura
2Taylor Motter
3B1Kyle Seager
LF1Ben Gamel
2Guillermo Heredia
CF1Dee Gordon
2Andrew Romine
3Kirk Nieuwenhuis
RF1Mitch Haniger
2Cameron Perkins
DH1Nelson Cruz
Starting Pitcher
PosRoleName
S1Felix Hernandez
2James Paxton
3Mike Leake
4Ariel Miranda
5Erasmo Ramirez
6Marco Gonzales
7Andrew Moore
8Hisashi Iwakuma
Relief Pitcher
PosRoleName
R1Edwin Diaz
2Juan Nicasio
3David Phelps
4Tony Zych
5Nick Vincent
6Marc Rzepczynski
7James Pazos
8Shawn Armstrong
9Dan Altavilla
10Mike Morin
11Sam Moll
12Nick Rumbelow
13Christian Bergman