William
Kempner
PAge : 25Throws : R
#71
William Kempner
#71P
Miami Marlins
Height : 6' 0" · Weight : 101 kg · Bats : R · Throws : R · MLB debut : 2026-05-05
Born in : San Jose, CA, USA
MLB record
| Year | Team | PJ | V | D | MPM | MJ | RB | WHIP |
|---|---|---|---|---|---|---|---|---|
| 2026 | Miami Marlins | 9 | 1 | 0 | 2.92 | 12.1 | 14 | 0.97 |
| Career totals | 9 | 1 | 0 | 2.92 | 12.1 | 14 | 0.97 | |
William Kempner in five questions
How old and how tall is William Kempner?
William Kempner is 25 years old (born June 18, 2001). He is 6'0" (183 cm) and weighs 223 lb (101 kg).
Where is William Kempner from?
William Kempner was born in San Jose, CA, United States.
What number does William Kempner wear, and what team does he play for?
William Kempner plays for Miami Marlins in the MLB, at P, and wears number 71.
Where can I find William Kempner's full stats?
On this PickALeague page: his season-by-season stats, updated daily during the season.