William Kempner has no $tag yet, so there is no bandwagon to be on or off. The $MARLINS bandwagon is where the Marlins talk is.
William Kempner is 25 years old, born June 18, 2001. Kempner is 6 ft 0 in (183 cm) and 223 lb (101 kg). Kempner plays relief pitcher for the Miami Marlins (as of November 4, 2026).
William Kempner at a glance
- Age25 born June 18, 2001
- Height6 ft 0 in 183 cm
- Weight223 lb 101 kg
- ExperienceRookie debut 2026
Next game
William Kempner next game
No upcoming Marlins game on the schedule yet.
Recent form
William Kempner recent form
No box-score line for Kempner yet. A line appears here after a final game in which Kempner played.
Takes
Latest takes on William Kempner
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Contract
William Kempner contract
- Total valuenot yet reported
- Per yearnot yet reported
- Guaranteednot yet reported
- Yearsnot yet reported
Career
William Kempner team
William Kempner is on the Miami Marlins, coached by Clayton McCullough.
- BornJune 18, 2001, San Jose, CA, United States
- Height6 ft 0 in (183 cm)
- Weight223 lb (101 kg)
- Bats / throwsRight / Right
- Debut2026
Sources
- Roster and bio facts from the public Major League Baseball roster and Wikidata (CC0).
- Status from the team's injury report.
- The bandwagon is Bandwagon's own count of stances today, fans and neutrals counted apart.
A field is left out until a source has it; nothing is estimated.