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Keller Stargell League
7-13-2029
Joba Chamberlain Relief Pitcher
San Francisco Pheasants
SEASON BIOGRAPHICAL DATA
ERA 3.60 Total Rating B+   Bats/Throws R/R
W-L 4-4 Status Active Option Years 0  
SV 0 Age 30 (OS 31) Date of Birth 08-15-1998
K 73 Drafted Round 2, Pick 28
(2021)		 Majors Svc Time 6 years
(152 games)
IP 100.0
WHIP 1.47
OFFENSE PITCHING MENTORING
Contact vs. R C- Contact vs. L B- Endurance C    Ldrship B 
Power vs. R D- Power vs. L D- Velocity A-   Mentor Val B-
Speed D- Bunt F  Control B 
POSITIONS DEFENSE/HEALTH POSTSEASON
 C * --- SS --- Range B- WS Rings 0
1B --- LF --- Arm A  WS Appearances 0
2B --- CF ---   Health B+ LCS Appearances 0
3B --- RF ---   Injured Days 0 All Star Teams 0
* League requires 50% rating to start at catcher.

Year   Team W L G GS CG SHO SV BS IP H R ER HBP BB SO WHIP ERA Awards
2021 CHA-MIL
3
 2
40
0
0
0
0
 4
58.1
 61 35 28 1 32
51
1.59
4.32
2022 MIL
4
 6
72
0
0
0
1
 5
92.0
 105 60 58 3 41
80
1.59
5.67
2023 MIL
0
 0
8
0
0
0
0
 0
6.0
 11 6 6 0 4
3
2.50
9.00
2024 MIL
4
 2
30
0
0
0
4
 1
38.0
 36 16 16 0 16
24
1.37
3.79
2025 MIL
2
 0
25
0
0
0
2
 0
35.1
 39 24 23 2 11
33
1.42
5.86
2026 MIL-SF
10
 1
37
0
0
0
1
 0
63.0
 59 26 26 0 19
43
1.24
3.71
2027 SF
8
 5
67
0
0
0
13
 3
123.1
 109 44 37 0 50
104
1.29
2.70
2028 SF
4
 11
88
0
0
0
37
 11
113.2
 109 44 44 2 52
94
1.42
3.48
2029 SF
4
 4
49
0
0
0
0
 0
100.0
 103 42 40 0 44
73
1.47
3.60
Total
39
 31
416
0
0
0
58
 24
629.2
 632 297 278 8 269
505
1.43
3.97
Career Transactions
DateTransaction
2027-05-25Joba Chamberlain of the San Francisco Pheasants is injured and is expected to be out 40 days.
2026-08-23Trade #1931068 has been completed between the Milwaukee Mustangs and the San Francisco Pheasants. The San Francisco Pheasants receive Joba Chamberlain, Draft Pick 2028 Round 1 MIL (Makoto Yumioka), Draft Pick 2027 Round 1 MIL (Johnny Griffeth) from the Milwaukee Mustangs in exchange for John Welchel, Joe Mauser.
2026-04-10The Milwaukee Mustangs have promoted Joba Chamberlain to the major league team.
2025-10-02The Milwaukee Mustangs have sent Joba Chamberlain to the minors. The Milwaukee Mustangs have sent Dazzy Vance to the minors.
2025-08-19The Milwaukee Mustangs have promoted Joba Chamberlain to the major league team. The Milwaukee Mustangs have sent Dazzy Vance to the minors.
2025-08-16The Milwaukee Mustangs have promoted Dazzy Vance to the major league team. The Milwaukee Mustangs have sent Joba Chamberlain to the minors.
2025-07-17Joba Chamberlain of the Milwaukee Mustangs is injured and is expected to be out 14 days.
2025-06-08The Milwaukee Mustangs have promoted Joba Chamberlain to the major league team. The Milwaukee Mustangs have sent Dazzy Vance to the minors.
2025-06-06The Milwaukee Mustangs have promoted Dazzy Vance to the major league team. The Milwaukee Mustangs have sent Joba Chamberlain to the minors.
2025-03-03The Milwaukee Mustangs have promoted Phil Niekro to the major league team. The Milwaukee Mustangs have promoted Hideki Matsui to the major league team. The Milwaukee Mustangs have promoted Joba Chamberlain to the major league team. The Milwaukee Mustangs have designated Brian Bruney for assignment.
2024-10-12The Milwaukee Mustangs have sent Ramiro Pena to the minors. The Milwaukee Mustangs have sent Phil Niekro to the minors. The Milwaukee Mustangs have sent Austin Romine to the minors. The Milwaukee Mustangs have sent Joba Chamberlain to the minors.
2024-10-02The Milwaukee Mustangs have promoted Joba Chamberlain to the major league team.
2024-10-02The Milwaukee Mustangs have sent Joba Chamberlain to the minors. The Milwaukee Mustangs have sent Dazzy Vance to the minors.
2024-07-16The Milwaukee Mustangs have promoted Joba Chamberlain to the major league team. The Milwaukee Mustangs have sent Hideki Matsui to the minors.
2024-07-09The Milwaukee Mustangs have sent Joba Chamberlain down to the minors.
2024-04-04The Milwaukee Mustangs have promoted Joba Chamberlain to the major league team. The Milwaukee Mustangs have designated Walter Beall for assignment.
2023-08-26The Milwaukee Mustangs have sent Joba Chamberlain to the minors.
2023-08-16The Milwaukee Mustangs have promoted Joba Chamberlain to the major league team. The Milwaukee Mustangs have sent Hideki Matsui to the minors.
2023-05-01The Milwaukee Mustangs have sent Joba Chamberlain down to the minors.
2023-04-08The Milwaukee Mustangs have promoted Joba Chamberlain to the major league team. The Milwaukee Mustangs have designated Tom Morgan for assignment.
2023-03-01The Milwaukee Mustangs have promoted Jeff Weaver to the major league team. The Milwaukee Mustangs have sent Joba Chamberlain to the minors.
2022-08-16The Milwaukee Mustangs have promoted Joba Chamberlain to the major league team.
2022-08-08The Milwaukee Mustangs have sent Joba Chamberlain to the minors.
2022-04-14The Milwaukee Mustangs have promoted Joba Chamberlain to the major league team.
2022-03-01The Milwaukee Mustangs have renamed Nap Stephenson to Joba Chamberlain.
2021-10-02The Milwaukee Mustangs have sent Nap Stephenson to the minors.
2021-09-14Nap Stephenson of the Milwaukee Mustangs is injured and is expected to be out 27 days.
2021-08-15The Milwaukee Mustangs have promoted Nap Stephenson to the major league team. The Milwaukee Mustangs have sent Roger Erickson to the minors.
2021-08-14The Milwaukee Mustangs have acquired Nap Stephenson from the waiver wire.
2021-08-10The Chicago Zephyrs have waived Nap Stephenson.
2021-08-10The Chicago Zephyrs have sent Nap Stephenson to the minors. The Chicago Zephyrs have sent Joey Hemphill to the minors. The Chicago Zephyrs have promoted Gene Turner to the major league team.
2021-08-05The Chicago Zephyrs have promoted Nap Stephenson to the major league team.
2021-08-04The Chicago Zephyrs have sent Nap Stephenson to the minors. The Chicago Zephyrs have sent Gene Turner to the minors. The Chicago Zephyrs have promoted Joey Hemphill to the major league team.
2021-07-30The Chicago Zephyrs have promoted Nap Stephenson to the major league team.
2021-07-29The Chicago Zephyrs have sent Nap Stephenson to the minors. The Chicago Zephyrs have sent Joey Hemphill to the minors. The Chicago Zephyrs have promoted Gene Turner to the major league team.
2021-07-15The Chicago Zephyrs have promoted Nap Stephenson to the major league team.
2021-06-20The Chicago Zephyrs have sent Nap Stephenson to the minors. The Chicago Zephyrs have sent Gene Turner to the minors. The Chicago Zephyrs have promoted Joey Hemphill to the major league team.
2021-06-15The Chicago Zephyrs have promoted Nap Stephenson to the major league team.
2021-06-13The Chicago Zephyrs have sent Nap Stephenson to the minors. The Chicago Zephyrs have sent Joey Hemphill to the minors. The Chicago Zephyrs have promoted Gene Turner to the major league team.
2021-06-08The Chicago Zephyrs have promoted Nap Stephenson to the major league team.
2021-06-08The Chicago Zephyrs have sent Nap Stephenson to the minors. The Chicago Zephyrs have sent Gene Turner to the minors. The Chicago Zephyrs have promoted Joey Hemphill to the major league team.
2021-05-29The Chicago Zephyrs have sent Dick Franklin to the minors. The Chicago Zephyrs have promoted Nap Stephenson to the major league team.
2021-05-27The Chicago Zephyrs have sent Nap Stephenson to the minors. The Chicago Zephyrs have promoted Dick Franklin to the major league team. The Chicago Zephyrs have promoted Joey Hemphill to the major league team.
2021-05-25The Chicago Zephyrs have promoted Nap Stephenson to the major league team.
2021-05-22The Chicago Zephyrs have sent Nap Stephenson to the minors. The Chicago Zephyrs have promoted Joey Hemphill to the major league team.
2021-05-21The Chicago Zephyrs have promoted Nap Stephenson to the major league team.
2021-05-15The Chicago Zephyrs have sent Nap Stephenson to the minors. The Chicago Zephyrs have promoted Dick Franklin to the major league team. The Chicago Zephyrs have promoted Joey Hemphill to the major league team.
2021-04-01The Chicago Zephyrs have promoted Nap Stephenson to the major league team. The Chicago Zephyrs have promoted Gene Turner to the major league team. The Chicago Zephyrs have promoted Rick Mertz to the major league team.