William Kempner

Pitcher for Miami

Age: 24, 222 lbs, 6'0"

Born: 6/18/2001, San Jose, CA, USA

Sal: N/A

Currently In the minors

TRANSACTION REPORT 4 months

Joins 40-man roster.

The Marlins selected Kempner's contract from Triple-A Jacksonville.

Seasons	City	GP	CG	IP	ERA	W	L	ShO	Sv	H	2B	3B	HR	SO	HB	BB	WP	Bk	R	ER	NH	WHIP	K/9	PPts	PPts/GP

		0	0	0.0	-	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	-	-	0.0	-

Date	Opp	Res	CG	IP	ERA	W	L	ShO	Sv	H	2B	3B	HR	SO	HB	BB	WP	Bk	R	ER	NH	WHIP	K/9	PPts
2/26/2026		T0 - 0	0	1.0	0.00	0	0	0	1	0	0	0	0	1	0	0	0	0	0	0	0	0.00	9.00	3.0
2/23/2026		T0 - 0	0	1.0	0.00	0	0	0	0	0	0	0	0	2	1	1	0	0	0	0	0	1.00	18.00	0.0

			0	2.0	0.00	0	0	0	1	0	0	0	0	3	1	1	0	0	0	0	0	0.50	13.50	3.0

Date	Visit.	Home	Time
3/2/2026	Marlins	Cardinals	1:05 PM
3/5/2026	Astros	Marlins	1:10 PM
3/6/2026	Mets	Marlins	7:10 PM
3/7/2026	Marlins	Astros	12:05 PM
3/8/2026	Cardinals	Marlins	1:10 PM
3/9/2026	Marlins	Mets	6:10 PM
3/10/2026	Nationals	Marlins	1:10 PM
3/11/2026	Astros	Marlins	1:10 PM
3/13/2026	Marlins	Mets	6:10 PM
3/14/2026	Marlins	Nationals	12:05 PM

Pages:

1 2 >>

Player	Pos	City	Injured date	Type	Description	+

Player	Pos	City	Transaction date	Description
W. Kempne	P	MIA	11/18/2025	Joins 40-man roster.

Player	Pos	City	Game Date	Corr. Date	Corr.	Description	Game log

Stars of the month

Date	Player	City	Pos	Star
February 23, 2026	W. Kempne	MIA	P	NA
February 26, 2026	W. Kempne	MIA	P	NA

Stars of the week

Date	Player	City	Pos	Star