The Marlins recalled Kempner from Triple-A Jacksonville on Saturday. Since his demotion to Triple-A on May 6, Kempner has allowed just two earned runs over 10.1 innings while posting a 12:5 K:BB. His strong performance will now be rewarded through another trial in the majors as the roster replacement for Andrew Nardi (ribs).
William Kempner: Everything you need to know
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Status
ACTIVESTATS
William Kempner Game Log 2026
William Kempner Splits 2026
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SplitsGSIPWLERAKBBHBPCGHRERSVOSAVGHR
Overall 06.2100.08200300000.1300Home 04.1100.05200100000.0710Away 02.1000.03000200000.2220Day 02.1000.03000200000.2220Night 04.1100.05200100000.0710vs Righty 00.0000.01100300000.2730vs Lefty 00.0000.07100000000.0000May 03.1000.04000200000.1670June 03.1100.04200100000.0910Opponent vs NYM 0 2.1 0 0 0.0 3 0 0 0 2 0 0 0 0 0.222 0 vs BAL 0 1.0 0 0 0.0 1 0 0 0 0 0 0 0 0 0.000 0 vs AZ 0 2.0 1 0 0.0 3 2 0 0 0 0 0 0 0 0.000 0 vs TB 0 1.1 0 0 0.0 1 0 0 0 1 0 0 0 0 0.200 0 Venue @ Miami 0 4.1 1 0 0.0 5 2 0 0 1 0 0 0 0 0.071 0 @ New York 0 2.1 0 0 0.0 3 0 0 0 2 0 0 0 0 0.222 0
William Kempner Player Profile
Career History
William Kempner: Breaking News
Sent back to minors
The Marlins optioned Kempner to Triple-A Jacksonville on Wednesday, Christina De Nicola of MLB.com reports. Kempner was summoned Tuesday from the minors and made his major-league debut in Miami's 9-7 loss to Baltimore with a perfect inning out of the bullpen. He'll make room on the roster for a fresh bullpen arm in Dax Fulton, who was called up from Jacksonville in a corresponding move.
Recalled from Triple-A
The Marlins recalled Kempner from Triple-A Jacksonville on Tuesday, Christina De Nicola of MLB.com reports. He's grabbing the roster spot vacated by Chris Paddack, who was designated for assignment. Kempner holds a 6.46 ERA this season with Jacksonville but has struck out a whopping 34 batters over 15.1 innings. He will be making his major-league debut when/if he enters a game.