PoolExpert

William Kempner

Pitcher for Miami
Age: 24, 222 lbs, 6'0"
Born: 6/18/2001, San Jose, CA, USA
Sal: N/A

TRANSACTION REPORT 1 day

Recalled from Triple-A.
The Marlins recalled Kempner 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
2026
MIA
2
0
2.0
0.00
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0.00
4.50
0.0
0.0
2
0
2.0
0.00
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0.00
4.50
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
5/30/2026
NYM@
L1 - 6
0
1.0
0.00
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.00
0.00
0.0
5/5/2026
BAL
L7 - 9
0
1.0
0.00
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0.00
9.00
0.0
0
2.0
0.00
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0.00
4.50
0.0
Date
Visit.
Home
Time
6/1/2026
6:45 PM
6/2/2026
6:45 PM
6/3/2026
1:05 PM
6/5/2026
7:10 PM
6/6/2026
4:10 PM
6/7/2026
1:40 PM
6/9/2026
6:40 PM
6/10/2026
6:40 PM
6/11/2026
1:10 PM
6/12/2026
6:40 PM
Pages:
1 2 >>
Player
Pos
City
Transaction date
Description
P
MIA
5/30/2026
Recalled from Triple-A.
P
MIA
5/6/2026
Sent back to minors.
P
MIA
5/5/2026
Recalled from Triple-A.
P
MIA
3/8/2026
Sent to Triple-A.
P
MIA
11/18/2025
Joins 40-man roster.

Stars of the month

Date
Player
City
Pos
Star
May 05, 2026
MIA
P
NA
May 30, 2026
MIA
P
NA
 

Stars of the week

Print


Logo
Full site
Portions copyright © 2026 Sportradar
(sid:3)
Copyright © 1999-2026 PoolExpert.com
PoolExpert ® is a registered trade mark.