Griffin (12-2) picked up the win in Saturday's 5-3 victory over the Diamondbacks, giving up three runs on six hits and a walk over 6.2 innings. He struck out two.
The 30-year-old left-hander continues to impress in his first MLB action since 2022. Griffin has delivered 12 quality starts this season, including seven in his last eight outings -- a stretch in which he's produced a 1.56 ERA, 0.94 WHIP and 44:7 K:BB over 52 innings. While his name has come up in trade rumors, it's hard to imagine Griffin getting dealt if the surprising Nationals intend to remain in playoff contention. He's scheduled to make his next start on the road next week in Atlanta.
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Nationals' Foster Griffin: Strong for seven frames in 11th win
Rotowire
Griffin allowed one run on eight hits and one walk while striking out two over seven innings to earn the win over the Athletics on Sunday.
Griffin gave up three doubles among the eight hits but was mostly able to keep the Athletics' offense in check. The All-Star break hasn't slowed him down -- he's allowed exactly one run in eight straight starts, covering 50.1 innings with a 46:6 K:BB in that span. For the season, he's maintained an excellent 2.68 ERA with a 1.03 WHIP and 111:27 K:BB through 117.1 innings over 20 starts. He'll look to keep the hot streak going in a home start versus the Diamondbacks next weekend.
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Nationals' Foster Griffin: Dominant in 10th win
Rotowire
Griffin (10-2) earned the win against the Astros on Wednesday, allowing one run on five hits and no walks with nine strikeouts over seven innings.
Griffin allowed a run in the fifth inning but was otherwise untouchable, generating a whopping 22 swinging strikes on 99 pitches. The 30-year-old will head into the All-Star break having allowed exactly one run in seven straight outings while recording nine strikeouts in three of his past four. He owns a 2.77 ERA, 1.02 WHIP and 109:26 K:BB across 110.1 innings in what has been one of the biggest surprise campaigns of 2026.
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Nationals' Foster Griffin: Sharp in ninth win
Rotowire
Griffin (9-2) picked up the win Friday, allowing one run on four hits and a walk in five innings during a 9-5 victory over the Pirates. He struck out two.
A Bryan Reynolds solo shot in the third inning was the only blemish on Griffin's line, and the 30-year-old southpaw got lifted after 83 pitches (57 strikes) with the Nationals holding a comfortable 5-1 lead. Griffin hasn't lost a decision since May 14, going 5-0 over his last nine starts with a stellar 2.24 ERA, 0.94 WHIP and 51:8 K:BB through 52.1 innings. He'll look to wrap up the first half in style in a home start against the Astros next week.
Griffin took a no-decision Saturday against the Orioles, allowing one unearned run on three hits and two walks in seven innings. He struck out nine.
A throwing error by Nasim Nunez in the second inning kept an earned run off Griffin's ledger Saturday. After being out of the major leagues since 2023, Griffin has been a revelation for the Nationals in 2026. The 30-year-old southpaw has given up fewer than two runs in five straight starts, and he's now recorded nine strikeouts in back-to-back outings. Griffin will take an impressive 2.93 ERA, 1.04 WHIP and 98:25 K:BB over 98.1 innings into his next scheduled appearance against Pittsburgh.
Griffin didn't factor into the decision in Tuesday's 6-4 win over the Royals, allowing one run on six hits and two walks over six innings. He struck out six.
The 30-year-old lefty produced his second straight quality start and seventh of the season on 100 pitches (74 strikes), but Griffin saw his eighth win slip away when the Nationals' bullpen coughed up a two-run lead in the top of the seventh inning. Griffin has been locked in over his last five outings, posting a 1.93 ERA, 0.96 WHIP and 26:5 K:BB though 28 innings. He'll look to keep rolling in his next start, which is scheduled to come at home early next week against the Phillies.
Griffin didn't factor into the decision Wednesday, allowing one run on six hits over six innings in an 11-10 loss to the Giants. He struck out five without walking a batter.
The 30-year-old southpaw produced his sixth quality start of the season on 100 pitches (72 strikes) in another sharp performance, but Griffin saw his eighth win of the year slip away when the Nationals' bullpen managed to blow an eight-run lead. After a couple bumpy outings in mid-May, Griffin has bounced back to post a 2.05 ERA, 0.86 WHIP and 20:3 K:BB in 22 innings over his last four trips to the mound. He'll look to keep rolling in his next start, which lines up to come at home early next week against the Royals.
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Nationals' Foster Griffin: Sharp for five innings in win
Rotowire
Griffin (7-2) allowed one run on two hits and no walks while striking out four over five innings to earn the win over the Diamondbacks on Friday.
Griffin's lone mistake ended up being an Aramis Garcia solo shot in the third inning. The long ball has been a problem for Griffin at times, as he's allowed eight of them over his last five starts, a span in which he's given up 18 runs across 25.1 innings. For the season, the southpaw has a serviceable 3.63 ERA, 1.10 WHIP and 69:21 K:BB across 72 innings through 13 starts. His next start is slated to be a favorable road matchup in San Francisco.
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Nationals' Foster Griffin: Allows three homers in no-decision
Rotowire
Griffin did not factor into the decision in Saturday's 9-4 win over the Padres, allowing three runs on five hits and two walks with five strikeouts over five innings.
Griffin was burned by three solo homers and departed with a 3-1 deficit before the Nationals' offense erupted in the late innings. It marked the third time in six May outings that the southpaw surrendered multiple long balls, and he'll finish the month with a 4.86 ERA over that stretch. He'll carry a 3.76 ERA, 1.15 WHIP and 65:21 K:BB across 67 innings this season into a road matchup against the Diamondbacks next weekend.
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Nationals' Foster Griffin: Bounces back against Atlanta
Rotowire
Griffin (6-2) earned the win against Atlanta on Sunday, allowing three hits and one walk while striking out six across six scoreless innings.
It was a strong bounce-back performance from Griffin, who gave up 14 earned runs over his two starts prior to Sunday's game. He was able to get out of a couple of sticky spots -- including a bases-loaded situation in the fourth inning -- to come away with his fourth quality start of the season. Griffin is up to 60 strikeouts on the season, which is second on the Nationals behind Cade Cavalli (61) and 16th in the National League. Griffin will take a 3.63 ERA and 1.13 WHIP across 62 innings into his next start, which is slated for next weekend at home against the Padres.
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Nationals' Foster Griffin: Stumbles vs. Reds
Rotowire
Griffin (4-2) took the loss Thursday against Cincinnati, allowing nine runs on seven hits and three walks over 4.1 innings. He struck out seven.
While Griffin did log seven or more strikeouts for the third time in his last four outings, it was otherwise a day to forget for the left-hander. Prior to Thursday, Griffin had delivered four straight quality starts, posting a 1.38 ERA over 26 innings in that span. His ERA is now up to 3.53 on the year with a 1.14 WHIP and 49:18 K:BB across nine starts (51 innings). Griffin will look to get back on track in his next outing, currently scheduled for next week at home against the Mets.
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Nationals' Foster Griffin: Goes seven strong for fourth win
Rotowire
Griffin (4-1) earned the win against the Marlins on Friday, allowing two runs (one earned) on four hits and one walk with nine strikeouts over seven innings.
Griffin allowed two runs in the first inning before dazzling with six scoreless frames, generating 17 whiffs on 103 total pitches while notching a career-high nine strikeouts. The southpaw has been rolling, allowing just four combined earned runs over four consecutive quality starts. He'll carry an impressive 2.12 ERA, 1.03 WHIP and 42:15 K:BB across 46.2 innings into a road test in Cincinnati.
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Nationals' Foster Griffin: Fans eight in no-decision
Rotowire
Griffin did not factor into Sunday's decision against the White Sox. He allowed two hits and two walks while striking out eight across seven scoreless innings.
Griffin set the tone early by striking out the side in the first inning after yielding a single. He allowed just three more baserunners over the next six frames, but he was unable to come away with the win as neither team scored until extra innings. For Griffin, it was his second-straight quality start and the fourth time this season that he gave up two earned runs or less. He has a 3-0 record through six starts with a 2.67 ERA, 1.07 WHIP and 30:10 K:BB across 33.2 innings in 2026. Griffin is slated to make his next start next weekend at home against the Brewers.
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Nationals' Foster Griffin: Picks up third win Tuesday
Rotowire
Griffin (3-0) earned the win Tuesday against Atlanta, allowing three runs on five hits and one walk with three strikeouts across six innings.
After pitching the previous three seasons in Japan, Griffin has been a success story early in the season for the Nationals. He's gone at least five innings in all five starts, and Washington has now won four of those contests. The lefty doesn't throw hard or possess swing-and-miss stuff, but he keeps hitters off balance with a seven-pitch mix. Griffin now owns a 3.38 ERA and 22:8 K:BB across 26.2 innings.
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Nationals' Foster Griffin: Flirts with no-hitter in second win
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Griffin (2-0) recorded the win Saturday against the Brewers, allowing no runs on one hit and three walks in 5.1 innings. He struck out one.
The 30-year-old left-hander was superb Saturday, carrying a no-hit bid into the sixth inning before Joey Ortiz singled for Milwaukee's first hit of the game. Griffin, who hadn't pitched in the major leagues since 2022 prior to this season, is potentially breaking out for the Nationals, working at least five innings while allowing two runs or fewer in each of his first three starts. Griffin holds a 1.76 ERA, 1.11 WHIP and 12:6 K:BB on the year.
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Nationals' Foster Griffin: Solid against Dodgers
Rotowire
Griffin (1-0) did not factor into the decision Sunday against the Dodgers, allowing a run on five hits and three walks across five innings. He struck out six.
Griffin was sharp Sunday, with the only damage against him coming on a Shohei Ohtani solo homer in the third inning. While the Nats' bullpen failed to hang on to a 6-1 lead, Washington has to be encouraged by Griffin's performance early in the season. Through two starts against two strong offenses (the Dodgers and Phillies), the 30-year-old southpaw has allowed just three runs on 10 hits while striking out 11 in 10 innings. Griffin is tentatively scheduled for a road matchup with the Brewers in his next outing.
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Nationals' Foster Griffin: Works through five in win
Rotowire
Griffin (1-0) earned the victory Monday against the Phillies, giving up two runs on five hits while striking out five over five innings.
It was just about a dream start to the game for Griffin as he was handed a 4-0 lead before he even threw his first pitch Monday. He handled that run support well, holding down the Nationals lineup in his five innings of work aside from a two-run home run surrendered to Rafael Marchan. That's an encouraging start to the season for the 30-year-old Griffin in his first MLB start since 2022.
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Nationals' Foster Griffin: Gets stretched out Friday
Rotowire
Griffin gave up three runs on five hits and two walks over five innings in Friday's Grapefruit League game against the Marlins. He struck out five.
The 30-year-old southpaw has seen extensive work on the back fields this spring, with Friday's start being just his second Grapefruit League appearance, but Griffin built up to 78 pitches (53 strikes) and appears ready to take the ball for his first MLB game since 2022. Over eight innings this spring, he's delivered a 4.50 ERA and 9:2 K:BB, and he'll handle a mid-rotation role for the Nationals to kick off 2026 after spending the last three seasons in Japan.
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Foster Griffin: Let go by Toronto
Rotowire
Griffin was released by the Blue Jays on Tuesday, Shi Davidi of Sportsnet.ca reports.
Griffin is expected to continue his professional career overseas in Japan, leading the Blue Jays to release him. The 27-year-old appeared in only six MLB games in 2022 but had a 2.10 ERA across 51.1 innings at the Triple-A level.
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Blue Jays' Foster Griffin: Back in minors
Rotowire
Griffin was optioned down to Triple-A Buffalo on Friday.
The 27-year-old southpaw ends up being the roster casualty following the promotion of Mitch White for his start Friday. Griffin threw two scoreless innings out of the bullpen Wednesday, striking out two batters.
