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William Kempner
Pitcher — Miami Marlins
#71Height: 6'0"
As Pitcher
Challenges
4
Overturn Rate
75%
Overturned
3
Confirmed
1
Recent Challenges
| Date | Inning | Role | Opponent | Call | Result | Zone |
|---|---|---|---|---|---|---|
| 2026-07-03 | ▼ 9 | As Pitcher | Batter: Nick Kurtz(MIA) | Ball → Strike | Overturned | |
| 2026-06-10 | ▲ 8 | As Pitcher | Batter: Corbin Carroll(MIA) | Ball → Strike | Overturned | |
| 2026-06-10 | ▲ 7 | As Pitcher | Batter: Tommy Troy(MIA) | Ball → Strike | Overturned | |
| 2026-05-31 | ▼ 7 | As Pitcher | Batter: Brett Baty(MIA) | Ball → Ball | Confirmed |