Shinnosuke Ogasawara - MLB News, Rumors, & Updates

Pushed off 40-man Ogasawara cleared waivers Wednesday and was sent outright to Triple-A Rochester.

Impact Ogasawara struggled during his first season in the States, posting a 6.98 ERA and 1.55 WHIP alongside a 30:17 K:BB through 38.2 innings. He'll now lose his place on the 40-man roster heading into the offseason, though he may have a chance to reclaim his spot with a strong showing in spring training.

OCTOBER 30, 2025 • ROTOWIRE

'He's a freakin' competitor': Ogasawara unfazed by Phils' tough lefties PHILADELPHIA -- When Jake Irvin exited his start with one out in the third inning in Sunday afternoon's 3-2 loss to the Phillies at National...

AUGUST 24, 2025 • MLB.COM

Josh Bell's homer, rookie Cole Henry's clutch relief help Nationals beat Mets 5-4

Josh Bell homered and drove in two runs, rookie reliever Cole Henry pitched out of a jam in the sixth inning and the Washington Nationals held on to beat the Mets 5-4, ending New Y...

AUGUST 21, 2025 • Associated Press

Rejoins big club The Nationals recalled Ogasawara from Triple-A Rochester on Friday.

Impact The left-hander will bolster Washington's pitching staff in the wake of the trade deadline. The Nationals haven't announced their updated rotation plans, but Ogasawara is likely to be in the mix to take the starting spot of Michael Soroka, who was dealt to the Cubs.

AUGUST 1, 2025 • ROTOWIRE

Peralta, Chourio and Turang star as Brewers beat the Nationals, extend win streak to 7 games

All-Star Freddy Peralta pitched one-run ball through 6 2/3 innings, Jackson Chourio and Brice Turang homered and the Milwaukee Brewers extended their winning streak to seven games...

JULY 13, 2025 • Associated Press

Sent down to minors The Nationals optioned Ogasawara to Triple-A Rochester following his start Saturday.

Impact Ogasawara completed four innings and finished with a no-decision against Milwaukee on Saturday, allowing three runs on four hits and a walk while striking out two batters. While the outing was better than his previous one, the southpaw doesn't appear to be keeping a rotation spot after giving up seven over 6.2 frames across his first two MLB starts. It's not yet clear who Washington will deploy as its fifth starter moving forward, but the team has some time to decide with the All-Star break just around the corner.

JULY 13, 2025 • ROTOWIRE

Sent down to minors The Nationals optioned Ogasawara to Triple-A Rochester following his start Saturday against the Brewers.

Impact Ogasawara completed four innings and finished with a no-decision against Milwaukee on Saturday, allowing three runs on four hits and a walk while striking out two batters. While the outing was better than his previous one, the southpaw won't retain his rotation spot after giving up seven runs over 6.2 frames across his first two MLB starts. It's not yet clear who Washington will deploy as its fifth starter moving forward, but the team has some time to decide with the All-Star break just around the corner.

JULY 13, 2025 • ROTOWIRE

Still shaky in second start Ogasawara allowed three runs on four hits and a walk while striking out two over four innings in a no-decision versus the Brewers on Saturday.

Impact Ogasawara threw 56 pitches (34 strikes) in his second major-league start. It was a better performance than his debut against Boston last week -- he kept the ball in the yard and wasn't responsible for the loss, as the Nationals covered his poor fourth-inning with three runs over the final two frames. The southpaw has now allowed seven runs across 6.2 innings in the majors, adding a 4:1 K:BB. It remains to be seen if Ogasawara will stick in the rotation after the All-Star break, but the Nationals have a spot to let him work if he can prove himself up to the challenge.

JULY 13, 2025 • ROTOWIRE

Still shaky in second start Ogasawara allowed three runs on four hits and a walk while striking out two over four innings in a no-decision versus the Brewers on Saturday.

Impact Ogasawara threw 56 pitches (34 strikes) in his second major-league start. It was a better performance than his debut against Boston last week -- he kept the ball in the yard and wasn't responsible for the loss, as the Nationals covered his poor fourth inning with three runs over the final two frames. The southpaw has now allowed seven runs across 6.2 innings in the majors, adding a 4:1 K:BB. It remains to be seen if Ogasawara will stick in the rotation after the All-Star break, but the Nationals have a spot to let him work if he can prove himself up to the challenge.

JULY 13, 2025 • ROTOWIRE

Durbin's walk-off single lifts Brewers to 6-5 win over Nationals

Caleb Durbin hit an RBI single with one in the ninth inning to cap a three-run rally and give Milwaukee a 6-5 victory over the Washington Nationals

JULY 12, 2025 • Associated Press

Awarded another start Ogasawara is slated to start Saturday's game against the Brewers in Milwaukee.

Impact With Trevor Williams (elbow) hitting the injured list last week with a season-ending UCL tear, Ogasawara was summoned from Triple-A Rochester to fill the opening in the rotation. The 27-year-old proceeded to get thrashed in his MLB debut last Sunday, surrendering four earned runs on seven hits and no walks over 2.2 innings. With prospect Cade Cavalli (14 earned runs allowed over last two starts) languishing at Triple-A of late, the Nationals don't have many appealing alternatives for the No. 5 spot in the rotation, so Ogasawara will receive at least one more start as he looks to build his case for sticking around with the big club coming out of the All-Star break.

JULY 11, 2025 • ROTOWIRE

Nationals pitcher Trevor Williams to have surgery for partial UCL tear, out until next season

Nationals pitcher Trevor Williams has revealed a partial tear in his elbow ligament and will undergo surgery next week

JULY 10, 2025 • Associated Press

Shinnosuke Ogasawara's MLB debut is a blur as the Nats get swept away The Japanese left-hander gave up four first-inning runs as the Nationals fell, 6-4, to the Red Sox to wrap up a three-game sweep.

JULY 6, 2025 • WASHINGTONPOST.COM

Red Sox complete 3-game sweep of Nationals with 6-4 victory

Trevor Story homered and the Boston Red Sox beat Washington 6-4 on Sunday to complete a three-game sweep, with the Nationals firing manager Dave Martinez and general manager Mike R...

JULY 6, 2025 • Associated Press

Struggles in debut Ogasawara (0-1) took the loss Sunday against the Red Sox, allowing four runs on seven hits over 2.2 innings. He struck out two.

Impact It was a rude welcome for Ogasawara in his major-league debut -- the Red Sox jumped on the left-hander for four runs in the first inning, capped by a Trevor Story two-run homer. Ogasawara, who was sidelined for much of the first half of the season with an oblique injury, pitched to a 4.80 ERA in three rehab outings with Triple-A Rochester. Despite his struggles Sunday, Ogasawara figures to remain in the Nats rotation, at least through the All-Star break, with Trevor Williams (elbow) landing on the IL.

JULY 6, 2025 • ROTOWIRE

Struggles in debut Ogasawara (0-1) took the loss Sunday against the Red Sox, allowing four runs on seven hits over 2.2 innings. He struck out two.

Impact It was a rude welcome for Ogasawara in his major-league debut -- the Red Sox jumped on the left-hander for four runs in the first inning, capped by a Trevor Story two-run homer. Ogasawara, who was sidelined for the first half of the season with an oblique injury, pitched to a 4.80 ERA in three rehab outings with Triple-A Rochester. Despite his struggles Sunday, Ogasawara figures to remain in the Nats rotation, at least through the All-Star break, with Trevor Williams (elbow) landing on the IL.

JULY 6, 2025 • ROTOWIRE

Promoted for MLB debut The Nationals selected Ogasawara's contract from Triple-A Rochester to start Sunday's game against the Red Sox.

Impact The Japanese left-hander has been called up for his MLB debut after missing most of the first three months of the season due to an oblique injury. Ogasawara has a 4.80 ERA, 1.33 WHIP and 12:4 K:BB in 15 innings over his three starts for Rochester this season. The 27-year-old inked a two-year, $3.5 million contract with the Nationals in January after spending the first nine seasons of his professional career in Japan, where had had a 3.67 ERA and 7.1 K/9 in 190 games.

JULY 6, 2025 • ROTOWIRE

Making big-league debut Sunday Ogasawara (oblique) will make his major-league debut Sunday against the Red Sox, Mark Zuckerman of MASNSports.com reports.

Impact Ogasawara threw four innings in his most recent rehab start at High-A and is listed as the starter Sunday. Ogasawara, a 27-year-old lefty from Japan, signed a two-year, $3.5 million deal with the Nationals this year and has a 4.80 ERA, 1.33 WHIP and 12:4 K:BB in 15 innings across three starts at Triple-A.

JULY 5, 2025 • ROTOWIRE

Making big-league debut Sunday Ogasawara (oblique) will make his major-league debut Sunday against the Red Sox, Mark Zuckerman of MASNSports.com reports.

Impact There is no confirmation on whether Ogasawara will start Sunday's game, but considering the Nationals don't have a confirmed starter for that game and Ogasawara threw four innings in his most recent rehab start at High-A, he will likely be the starter or bulk pitcher Sunday. Ogasawara, a 27-year-old lefty from Japan, signed a two-year, $3.5 million deal with the Nationals this year and has a 4.80 ERA, 1.33 WHIP and 12:4 K:BB in 15 innings across three starts at Triple-A.

JULY 5, 2025 • ROTOWIRE

Cleared to rejoin Triple-A club Triple-A Rochester reinstated Ogasawara (oblique) from its 7-day injured list Saturday.

Impact Ogasawara has yet to make an appearance for Rochester since being activated, but he's apparently healthy again after he had been on the shelf since April 17 due to an oblique strain. Prior to being reinstated, the 27-year-old lefty completed three rehab starts between the rookie-level Florida Complex League and High-A Wilmington, covering nine innings and striking out 12 while allowing four earned runs on seven hits and two walks.

JULY 4, 2025 • ROTOWIRE

On rehab assignment Ogasawara (oblique) has been transferred to High-A Wilmington to continue his rehab assignment.

Impact Ogasawara tossed two scoreless frames with two strikeouts with the rookie-level Florida Complex League Nationals on June 14 in his first rehab start. The left-hander has been on the 7-day injured list at Triple-A Rochester since mid-April due to an oblique strain. Ogasawara should be activated by Rochester soon if all goes well, but there's no indication he's under consideration for a spot on the major-league roster anytime soon. The 27-year-old held a 4.80 ERA and 12:4 K:BB over 15 innings in three starts for Rochester before getting hurt.

JUNE 18, 2025 • ROTOWIRE

Placed on Triple-A IL Triple-A Rochester placed Ogasawara on its 7-day injured list Thursday with an oblique injury, Spencer Nusbaum of The Washington Post reports.

Impact Ogasawara retains a spot on the Nationals' 40-man roster after signing a two-year, $3.5 million deal in January, but he was unable to win a spot in the Opening Day rotation and is still waiting to make his MLB debut. He supplied a 4.80 ERA, 1.33 WHIP and 12:4 K:BB over 15 innings through his first three starts with Rochester before going down with the oblique injury.

APRIL 17, 2025 • ROTOWIRE

What Nats' latest round of cuts mean for roster WEST PALM BEACH, Fla. -- The Nationals made a significant round of roster moves in the final days of Spring Training. On Thursday, the club...

MARCH 22, 2025 • MLB.COM

Sent to Rochester The Nationals optioned Ogasawara to Triple-A Rochester on Friday.

Impact Ogasawara's transition from Japan to the U.S. hasn't gone as well as he probably had hoped. In five Grapefruit League games, the 27-year-old lefty allowed 19 runs (15 earned) in 12 innings while striking out 10 batters and walking eight. He'll now head to the minors as a result of his rough start, and it may be a while before he's ready to face MLB hitters.

MARCH 21, 2025 • ROTOWIRE

Fifth-starter battle heating up between Parker, Ogasawara WEST PALM BEACH, Fla. -- As the competition for the fifth starter ramps up with a week left in camp, southpaws Mitchell Parker and Shinnosuk...

MARCH 16, 2025 • MLB.COM

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Josh Bell's homer, rookie Cole Henry's clutch relief help Nationals beat Mets 5-4

Peralta, Chourio and Turang star as Brewers beat the Nationals, extend win streak to 7 games

Durbin's walk-off single lifts Brewers to 6-5 win over Nationals

Nationals pitcher Trevor Williams to have surgery for partial UCL tear, out until next season

Red Sox complete 3-game sweep of Nationals with 6-4 victory