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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.
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.
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Nationals' Foster Griffin: Dominates Phillies for eighth win
Rotowire
Griffin (8-2) earned the win Monday against the Phillies, allowing one run on four hits while striking out nine over 7.1 innings.
Griffin recorded the deepest outing of his major-league career Monday, as the left-hander held the Phillies scoreless through six frames before Brandon Marsh finally got to him with a solo homer in the seventh. The nine strikeouts matched a season high for Griffin. He has limited opponents to one run or fewer in five of his last six starts while posting a stellar 1.78 ERA and 35:5 K:BB during that span. Griffin will carry that momentum into his next scheduled outing on the road against Baltimore.
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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