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    IsaacMattson

    Seattle Mariners
    • Seattle MarinersMariners
    • #72
    • Relief PitcherRP
    • HT/WT
      1.88 m, 97 kg
    • Birthdate
      14/7/1995 (31)
    • BAT/THR
      Right/Right
    • HT/WT
      1.88 m, 97 kg
    • Birthdate
      14/7/1995 (31)
    • BAT/THR
      Right/Right
    • Birthplace
      Erie, PA
    • Status
      Active

    2026 season stats

    • SV
      0
      150+
      ERA
      5.35
      K
      36
      150+
      WHIP
      1.60
    • Overview
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      Isaac Mattson
      #72
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    SV

    • 0

    K

    • 36

    ERA

    • 5.35

    WHIP

    • 1.60

    2026 Pitching

    See All
    Stats
    Regular Season
    Career
    GPGSCGSHOIPHRERHRBBK
    3800038.244232331836
    8900096.085434274790

    Recent Games

    See All
    DateOPPResultGSCGSHOIPHRERHRBBK
    Sun 9/6vsLAALAA
    L
    6-1
    0002.0433002
    Tue 8/18vsDETDET
    L
    8-5
    0002.0211021
    Wed 7/29vsARIARI
    L
    8-7 F/12
    0001.2311013
    Sun 7/26vsCHCCHC
    L
    11-0
    0000.1433011
    Mon 7/20@CLECLE
    W
    7-1
    0001.0000001
    Latest News
    See All

    Racing Positions

      • Pirates reliever Mattson lands on IL due to hip
        • 2M
        Pirates reliever Mattson lands on IL due to hip
        • Ashcraft goes 3 scoreless innings in Pirates debut
          • 1Y
          Ashcraft goes 3 scoreless innings in Pirates debut
          • Source: Tigers agree to 1-year deal with reliever Pagan
            • 3h
            Cincinnati Reds pitcher Emilio Pagán reacts after winning a baseball game against the Baltimore Orioles in Cincinnati, Sunday, July 5, 2026.
            • Padres agree to 1-year deal with RHP Weiss, sources say
              • 4h
              • Jesse Rogers
              Padres agree to 1-year deal with RHP Weiss, sources say
              • Yankees' Cashman accepts apology from Murphy, surprised by Posada comments
                • 3h
                Yankees' Cashman accepts apology from Murphy, surprised by Posada comments
                • Braves GM emphatically shuts down Acuna trade speculation: 'We need him'
                  • 4h
                  • Jorge Castillo
                  Braves GM emphatically shuts down Acuna trade speculation: 'We need him'
                  • Source: Mets to meet with prized ace Skubal next week
                    • 5h
                    • Jorge Castillo
                    Source: Mets to meet with prized ace Skubal next week
                    • 'If you're tired, take a nap': Inside the wit and wisdom of one-of-a-kind Brewers manager Pat Murphy
                      • 8h
                      • Jesse Rogers
                      Manager Pat Murphy and pitcher Aaron Ashby of the Milwaukee Brewers celebrate after advancing to the World Series.
                      • Brewers' Murphy 3-peats as top NL manager; White Sox's Venable wins AL honors
                        • 6h
                        Brewers' Murphy 3-peats as top NL manager; White Sox's Venable wins AL honors
                        • MLB Awards Week: Venable and Murphy win Manager of the Year
                          • 7h
                          • Bradford Doolittle
                          Pete Crow-Armstrong, Jacob Misiorowski, Cam Schlittler & Yordan Alvarez

                        2026 AL West Standings

                        TeamWLPCTGBSTRK
                        Houston8181.500-W2
                        Texas8082.4941L1
                        Seattle7686.4695W2
                        Athletics6498.39517L2
                        Los Angeles62100.38319L2
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