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— Stats
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Career Stats
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No year-by-year rows available.
Spring Training
Pitching
| Year | Team | G | GS | IP | W | L | SV | SO | ERA | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | MIA | 4 | — | 2.2 | — | — | — | 4 | 6.75 | 1.50 |
| 2026 | MIA | 4 | — | 4.0 | — | — | 1 | 6 | 0.00 | 0.75 |
Game Logs
Season selector loads one year at a time.
Pitching
| Date | Opponent | IP | H | R | ER | BB | SO | HR |
|---|
Transactions
Entire history • newest first.
2026-03-08
Miami Marlins optioned RHP William Kempner to Jacksonville Jumbo Shrimp.
2025-11-18
Miami Marlins selected the contract of RHP William Kempner from Jacksonville Jumbo Shrimp.
2025-02-28
RHP William Kempner assigned to Miami Marlins.
2025-01-15
San Francisco Giants traded RHP William Kempner to Miami Marlins for Future Considerations. International Bonus Pool Money.
2022-07-28
San Francisco Giants signed RHP William Kempner.
Scouting Report
Statcast-style percentiles • Basenerd theme
No Statcast percentile data available.
Spray Chart
Hits only • Stadium overlay
1B
2B
3B
HR
MLBAM-style coords scaled into stadium viewBox. Home plate baseline ≈ (125, 199). Stadium SVG: generic.svg.
Results by Pitch Type
| Pitch | # | Usage% | Zone% | Whiff% | AVG | HardHit% |
|---|---|---|---|---|---|---|
| No pitch tracking data available. | ||||||
Results by Pitch Category
| Category | # | Usage% | Zone% | Whiff% | AVG | HardHit% |
|---|---|---|---|---|---|---|
| No pitch category data available. | ||||||