ESPN
    • NFL
    • NBA
    • MLB
    • NCAAF
    • Soccer
    • Tennis
    • NHL
    • More Sports
    • Watch ESPN
      Watch
    • ESPN Fantasy
      Fantasy
    • Where to Watch
    • Search

    WilliamKempner

    Miami Marlins
    • Miami Marlins
    • #71
    • Relief Pitcher
    • HT/WT
      6' 0", 222 lbs
    • Birthdate
      6/18/2001 (25)
    • BAT/THR
      Right/Right
    • Birthplace
      San Jose, CA
    • Status
      60-Day IL

    2026 season stats

    • SV
      0
      150+
      ERA
      2.92
      K
      14
      150+
      WHIP
      0.97
    • Overview
    • News
    • Stats
    • Bio
    • Splits
    • Game Log

    Switch Player

    • Sandy Alcantara
      Sandy Alcantara
      #22
    • Ryan Gusto
      Ryan Gusto
      #65
    • Janson Junk
      Janson Junk
      #26
    • Eury Perez
      Eury Perez
      #39
    • Bradley Blalock
      Bradley Blalock
      #31
    • Josh Ekness
      Josh Ekness
      #95
    • Calvin Faucher
      Calvin Faucher
      #53
    • Dax Fulton
      Dax Fulton
      #90
    • Cade Gibson
      Cade Gibson
      #58
    • Michael Petersen
      Michael Petersen
      #49
    • Tyler Phillips
      Tyler Phillips
      #30
    • Jack Ralston
      Jack Ralston
      #79
    • Victor Vodnik
      Victor Vodnik
      #38
    • Tyler Zuber
      Tyler Zuber
      #55
    Full Roster

    MLB Quick Links

    Scores
    Standings
    Schedule

    Status

    60-Day IL
    18 days agoThe Marlins transferred Kempner (elbow) to the 60-day injured list Friday.
    Data Provided by Rotowire

    Next Game

    Full Splits
    New York Mets logo
    Mets
    66-78
    MLB.TV
    MIA -115
    Miami Marlins logo
    Marlins
    72-73

    SV Home

    • 0

    K Home

    • 8

    ERA Home

    • 5.40

    WHIP Home

    • 1.50
    SplitsGPGSCGSHOIPHRERHRBBK
    vs. NYM20002.1200003
    Home50006.2644148
    vs. NL40006.2200028

    Career Pitching

    See All
    Stats
    Career
    GPGSCGSHOIPHRERHRBBK
    900012.18441414

    Recent Games

    See All
    DateOPPResultGSCGSHOIPHRERHRBBK
    Sat 7/11vsCLECLE
    L
    4-1
    0002.0322003
    Thu 7/9vsSEASEA
    W
    8-4
    0000.1222120
    Fri 7/3@ATHATH
    W
    12-5
    0001.0000001
    Mon 6/15@PHIPHI
    L
    7-0
    0002.1000002
    Wed 6/10vsARIARI
    W
    8-0
    0002.0000023
    Latest News
    See All

    Racing Positions

      • Rays place SS Walls on IL with hip flexor strain
        • 29m
        Rays place SS Walls on IL with hip flexor strain
        • Braves P Elder out 3-4 weeks after knee surgery
          • 1h
          Braves P Elder out 3-4 weeks after knee surgery
          • Fantasy baseball lineup advice: Will Warren warrants Wednesday waiver watch
            • 1h
            • ESPN Fantasy
            Fantasy baseball lineup advice: Will Warren warrants Wednesday waiver watch
            • Remaining strength of schedule for every MLB playoff contender
              • 7h
              • ESPN
              Remaining strength of schedule for every MLB playoff contender
              • Reliever depth chart: Who's closing, who's tired and who's next?
                • 9h
                • Fantasy Staff
                San Diego Padres' Mason Miller looks on during the ninth inning of a baseball game against the Milwaukee Brewers.
                • Fantasy baseball forecaster: Team hitting ratings
                  • 10h
                  • Tristan H. Cockcroft
                  Los Angeles Dodgers first baseman Freddie Freeman (5) rounds third base to score in the third inning against the Los Angeles Angels at Dodger Stadium.
                  • Fantasy baseball forecaster: Pitcher projections for the next 10 days
                    • 10h
                    • Tristan H. Cockcroft
                    Philadelphia Phillies starting pitcher Cristopher Sánchez (61) flips the ball to first base in the first inning New York Mets at Citi Field.
                    • Every team's odds to win the 2026 World Series: Dodgers remain clear favorites
                      • 11h
                      • Doug Greenberg
                      Every team's odds to win the 2026 World Series: Dodgers remain clear favorites
                      • MLB awards: Crow-Armstrong running away with NL MVP?
                        • 11h
                        • Doug Greenberg
                        Chicago Cubs center fielder Pete Crow-Armstrong (4) runs the bases after hitting a two-run home run against the Los Angeles Dodgers.
                        • MLB betting tips for Tuesday: Expect some pop from Keaschall, Bazzana?
                          • 11h
                          • Derek Carty
                          Luke Keaschall #15 of the Minnesota Twins celebrates with teammates after scoring a run in the first inning while playing the Detroit Tigers

                        MLB News

                        Rays put shortstop Walls on 15-day IL with hip flexor strain

                        Rays put shortstop Walls on 15-day IL with hip flexor strain

                        Tampa Bay Rays shortstop Taylor Walls was placed on the 10-day injured list with a right hip flexor strange on Tuesday.
                        Braves righty Bryce Elder out 3-4 weeks after right knee surgery

                        Braves righty Bryce Elder out 3-4 weeks after right knee surgery

                        Braves starting pitcher Bryce Elder had surgery on his right knee on Tuesday and will be out three to four weeks, manager Walt Weiss said.
                        Fantasy baseball lineup advice: Will Warren warrants Wednesday waiver watch

                        Fantasy baseball lineup advice: Will Warren warrants Wednesday waiver watch

                        Everything you need to know to set your fantasy baseball lineups for Wednesday's MLB action.
                        "Bring baseball on" | Why Portland should get an MLB team

                        "Bring baseball on" | Why Portland should get an MLB team

                        Jeff Passan talks to former Nike exec Craig Cheek on what Portland is doing to position itself to get an MLB team
                        2026 MLB playoff contenders: Remaining strength of schedule

                        2026 MLB playoff contenders: Remaining strength of schedule

                        Which teams have the most -- and least -- favorable paths to October? We broke down every playoff hopeful's September matchups.
                        Fantasy Baseball Reliever Depth Chart

                        Fantasy Baseball Reliever Depth Chart

                        Our updated reliever depth chart displays the closer hierarchy for each team, as well as the fatigue factor in each MLB bullpen.
                        All MLB News
                        ESPN
                        • Terms of Use
                        • Privacy Policy
                        • Your US State Privacy Rights
                        • Children's Online Privacy Policy
                        • Interest-Based Ads
                        • About Nielsen Measurement
                        • Your Privacy Choices
                        • Contact Us
                        • Disney Ad Sales Site
                        • Work for ESPN
                        • Corrections
                        GAMBLING PROBLEM? CALL 1-800-GAMBLER or 1-800-MY-RESET, (800) 327-5050 or visit gamblinghelplinema.org (MA). Call 877-8-HOPENY/text HOPENY (467369) (NY). Call 888-789-7777/visit ccpg.org (CT), or visit www.mdgamblinghelp.org (MD), 1-800-981-0023 (PR). 21+ and present in most states. (18+ DC/KY/NH/PR/WY). Void in ONT. Eligibility restrictions apply. Terms: draftkings.com/sportsbook. On behalf of Boot Hill Casino (KS). Pass-thru of per wager tax may apply in IL.
                        Copyright: © 2026 ESPN Enterprises, LLC. All rights reserved.