2025 Stats
W-L
0-0
ERA
0.00
WHIP
0.00
K
0
SV
0
2026 Projections
Signed a one-year contract with the Marlins in March of 2026.
Sent to Triple-A
The Marlins optioned Kempner to Triple-A Jacksonville on Sunday.
Analysis
Kempner was added to Miami's 40-man roster in November but was never a likely bet to crack the Opening Day roster. The 24-year-old had a quality showing in his first taste of Triple-A last year with a 2.65 ERA, 1.35 WHIP and 25:15 K:BB over 17 innings, and he could make his MLB debut at some point in 2026 if he continues to pitch well for Jacksonville.
Kempner was added to Miami's 40-man roster in November but was never a likely bet to crack the Opening Day roster. The 24-year-old had a quality showing in his first taste of Triple-A last year with a 2.65 ERA, 1.35 WHIP and 25:15 K:BB over 17 innings, and he could make his MLB debut at some point in 2026 if he continues to pitch well for Jacksonville.
Pitching Stats
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Minor League Game Log
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Minor League Left/Right Pitching Splits (AAA)
Since 2023
-48%
BAA vs LHP
2025
-48%
BAA vs LHP
| BAA | K | BB | H | HR | |
|---|---|---|---|---|---|
| Since 2023vs Left | .097 | 15 | 8 | 3 | 1 |
| Since 2023vs Right | .185 | 10 | 7 | 5 | 1 |
| 2025vs Left | .097 | 15 | 8 | 3 | 1 |
| 2025vs Right | .185 | 10 | 7 | 5 | 1 |
| 2024vs Left | 0 | 0 | 0 | 0 | 0 |
| 2024vs Right | 0 | 0 | 0 | 0 | 0 |
| 2023vs Left | 0 | 0 | 0 | 0 | 0 |
| 2023vs Right | 0 | 0 | 0 | 0 | 0 |
Advanced Pitching Stats
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Defensive Stats
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Stats Vs Today's Lineup
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More Fantasy News
Joins 40-man roster
The Marlins selected Kempner's contract from Triple-A Jacksonville on Tuesday.
Analysis
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Traded to Miami
The Marlins acquired Kempner from the Giants on Wednesday in exchange for international bonus pool space, Justice delos Santos of The San Jose Mercury News reports.
Analysis
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Heads to Giants in Round 3
The Giants have selected Kempner with the 106th overall pick in the 2022 first-year player draft.
Analysis
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