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Teams · Miami Marlins · MLB ID 687531

#71 · Pitcher · Miami Marlins

William Kempner

B/T R/R · HT 6' 0" · WT 222 · Age 24 · Born Jun 18, 2001 · Debut May 5, 2026

Reassigned to Minors

Overview Game Log Splits Statcast Trend Lab Fielding Postseason Transactions

Postseason

William Kempner postseason log

Postseason routing is ready; all-time player postseason rows are the next history-engine expansion.

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