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Player Bio

HT/WT: 6-4, 215 lbs
Birthplace: Rye, NY
Age: 28
Experience: 4
Bats/Throws: R, R

Last Game

Wed, Sep 9
vs Texas Rangers (72-74)
  • T-Mobile Park
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Final
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2026 Pitching

STATS IP
Innings Pitched
W
Wins
L
Losses
ERA
Earned Run Average
SO
Strikeouts
BB
Base on Balls (Walk)
Regular Season 159.1 9 11 4.18 133 37

Top George Kirby News

  • Mariners' George Kirby: Dealt 11th loss

    Kirby (9-11) allowed four runs (three earned) on seven hits and a walk while striking out five over 6.2 innings to take the loss Saturday versus the Athletics.

    Kirby has now allowed at least four runs in four of his last five starts, making him somewhat fortunate to have a 1-2 record in that span. The right-hander gave up all of the runs between the second and fourth innings Saturday, and the Mariners' offense gave him nearly nothing in terms of support. For the year, Kirby is now at a 4.18 ERA, 1.34 WHIP and 133:37 K:BB across 159.1 innings through 27 starts. His next start is projected to be a rematch with the Athletics in Sacramento.

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  • Mariners' George Kirby: Uneven results continue

    Kirby took a no-decision against the Red Sox on Monday, allowing five runs on seven hits and two walks in five innings. He struck out two.

    The ball was flying around Fenway Park on Monday early and often, and Kirby was tagged for four extra-base hits on the evening. The right-hander has been a hit-or-miss fantasy option since coming back from the All-Star break, giving up at least five runs in four of his last eight outings while yielding less than two in the other half. He'll be aiming for some consistency in a favorable home matchup with the Athletics this weekend, carrying a 4.19 ERA, 1.35 WHIP and 128:36 K:BB over 152.2 innings.

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  • Mariners' George Kirby: Rebounds vs. Phillies

    Kirby (9-10) earned the win Tuesday over the Phillies, allowing one run on six hits and a walk across 7.2 innings. He struck out nine.

    It was an excellent bounce-back outing from Kirby, who had given up 11 runs across eight innings in his previous two starts. The right-hander held Philadelphia to a lone second-inning run and needed just 92 pitches to work into the eighth inning. The 28-year-old Kirby lowered his ERA to 4.02 on the season with a 1.33 WHIP and 126:34 K:BB across 25 starts (147.2 innings) this season. He's currently lined up to face the Red Sox on the road his next time out.

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  • Mariners' George Kirby: Hit hard in loss

    Kirby (8-10) took the loss against the Brewers on Thursday, allowing six runs on nine hits and two walks with three strikeouts over 3.1 innings.

    Kirby surrendered all six runs in a nightmare first inning, when he allowed 12 hard-hit balls overall while generating just six whiffs on 84 pitches. It continued an inconsistent year for the 28-year-old, who has now allowed 11 earned runs over his past two starts after yielding just one earned run through his first two August outings. He owns a 4.18 ERA, 1.36 WHIP and 117:33 K:BB across 140 innings this season and will aim to rebound in a home matchup with the Phillies next week.

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  • Mariners' George Kirby: Struggles in no-decision

    Kirby did not factor into the decision in Friday's 10-7 extra-inning loss to the Astros, allowing five runs on eight hits and three walks with two strikeouts over 4.2 innings.

    The damage was done early, as Kirby surrendered a solo homer in the first before enduring a four-run second inning. He labored overall, issuing three walks for just the third time this season while generating only seven whiffs on 99 pitches. The 28-year-old has now posted a 4.39 ERA through five second-half outings, though 12 of the 13 runs he's allowed have come in two blow-up starts. He'll take a 3.89 ERA, 1.31 WHIP and 114:31 K:BB across 136.2 innings this season into a road matchup with the Brewers next week.

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  • Mariners' George Kirby: Settles for no-decision

    Kirby allowed one run on four hits and two walks while striking out two over five innings in a no-decision versus the Rays on Saturday.

    Kirby was steady, though he wasn't all that efficient, needing 99 pitches (63 strikes) to get through his five frames. He was again let down by his offense, getting just one run of support while he was on the mound. Kirby has allowed two runs or fewer in six of his last seven outings but has just three wins in that span. He's at a 3.68 ERA, 1.27 WHIP and 112:28 K:BB across 132 innings over 22 starts this season. Kirby's next start is projected to be on the road in Houston.

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  • Mariners' George Kirby: Fires seven scoreless innings

    Kirby did not factor into the decision Sunday, allowing five hits and a walk over seven scoreless innings against the Twins. He struck out three.

    Kirby silenced the Twins offense across seven shutout innings, though a bullpen implosion kept him from being credited with the win. It was a much-needed bounce-back effort for the right-hander, who was tagged for seven runs in Monday's loss to the Rangers. Overall, the 28-year-old owns an 8-9 record with a 3.76 ERA, 1.28 WHIP and 110:26 K:BB across 127 innings (21 starts) and is lined up to pitch next weekend against the Rays.

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  • Mariners' George Kirby: Rocked for seven runs in loss

    Kirby (8-9) took the loss against the Rangers on Monday, allowing seven runs on seven hits while striking out three across four innings.

    Kirby tied a career high with four home runs allowed in Monday's game, two of which came off the bat of Joc Pederson, and the seven runs that the former allowed were his most of the season and his most since Sept. 3, 2025. It broke Kirby's streak of quality starts at six, and it was just the second time this season that he completed less than five innings. He'll take a 3.98 ERA and 1.30 WHIP over 120 innings into his next start, which is lined up for this weekend at home against Minnesota.

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  • Mariners' George Kirby: Tosses six shutout innings

    Kirby (8-8) allowed three hits and a walk while striking out six over six shutout innings to earn the win over the Reds on Monday.

    Kirby kept his hot stretch going, racking up his sixth straight quality start with one of his best outings of the campaign. During that six-start span, he's given up just 12 runs (11 earned) over 38 innings. He now has a 3.57 ERA, 1.28 WHIP and 104:25 K:BB through 116 innings over 19 starts this season. Kirby is lined up to make his next start on the road versus the Rangers.

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  • Mariners' George Kirby: Takes hard-luck loss

    Kirby (7-8) took the loss Wednesday against the Marlins, allowing two runs on eight hits across six innings. He struck out seven.

    It was another strong outing from Kirby, who's now held opponents to two runs or fewer in each of his last three outings, though he ultimately came away with the loss as Seattle failed to generate any runs in a 3-0 defeat. Kirby's turned in five straight quality starts, allowing 11 earned runs across 32 innings during that span. The right-hander will head into the All-Star break with a 3.76 ERA, 1.32 WHIP and 98:24 K:BB across 18 starts (110 innings) this year.

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  • Mariners' George Kirby: Goes eight innings in win

    Kirby (7-7) allowed two runs on seven hits and a walk while striking out seven over eight innings to earn the win over the Angels on Monday.

    Kirby allowed both runs within the first three innings before settling in for a strong performance. He threw 70 of 100 pitches for strikes in his fourth straight quality start. In that span, he's allowed 10 runs (nine earned) over 26 innings with a 27:6 K:BB. For the season, Kirby has a 3.81 ERA, 1.32 WHIP and 91:24 K:BB through 104 innings over 17 starts.

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AL West Standings

Team W-L L10 STRK
74-72 6-4 L1
72-74 6-4 L1
68-78 4-6 W1
59-88 6-4 W1
56-90 4-6 W2