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Jesse Orosco League
7-11-2215
Mark Kerr Relief Pitcher
Retired (2026, Age 35)
CAREER BIOGRAPHICAL DATA
ERA 4.29 Total Rating B    Bats/Throws R/R
W-L 26-20 Status Deceased (2064) Option Years 0  
SV 8 Age at Death 73 Date of Birth 07-03-1991
K 426 Drafted Round 1, Pick 7
(2013)		 Majors Svc Time 8 years
(7 games)
IP 591.0
WHIP 1.41
OFFENSE PITCHING MENTORING
Contact vs. R D- Contact vs. L D- Endurance C-   Ldrship B 
Power vs. R D- Power vs. L D- Velocity C+   Mentor Val A-
Speed B- Bunt C- Control A-
POSITIONS DEFENSE/HEALTH POSTSEASON
 C * --- SS --- Range C- WS Rings 0
1B --- LF --- Arm B  WS Appearances 0
2B --- CF ---   Health C+ LCS Appearances 0
3B --- RF ---   Injured Days 0 All Star Teams 0
* League requires 75% 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
2018 BOS
0
 1
18
0
0
0
0
 1
23.2
 22 11 11 0 9
9
1.31
4.18
2019 BOS
5
 3
59
0
0
0
0
 2
91.2
 87 42 37 3 26
70
1.23
3.63
2020 BOS
3
 3
43
2
0
0
0
 1
52.1
 55 29 29 0 19
44
1.41
4.99
2021 BOS
4
 1
47
0
0
0
2
 2
61.1
 68 29 26 3 17
39
1.39
3.82
2022 BOS
1
 5
54
0
0
0
0
 1
72.2
 76 38 34 2 30
58
1.46
4.21
2023 BOS
4
 1
53
0
0
0
1
 0
59.0
 55 23 23 0 20
56
1.27
3.51
2024 BOS
2
 4
51
0
0
0
0
 0
57.0
 56 26 25 0 28
36
1.47
3.95
2025 BOS
3
 0
66
0
0
0
4
 1
71.0
 76 31 30 0 22
47
1.38
3.80
2026 BOS
4
 2
92
0
0
0
1
 4
102.1
 133 74 67 1 35
67
1.64
5.89
Total
26
 20
483
2
0
0
8
 12
591.0
 628 303 282 9 206
426
1.41
4.29
Career Transactions
DateTransaction
2026-11-01Mark Kerr has retired from the Boston Commons
2025-09-04Mark Kerr of the Boston Commons is injured and is expected to be out 40 days.
2019-04-11The Boston Commons have promoted Mark Kerr to the major league team. The Boston Commons have designated J.R. Atz for assignment.
2018-06-28The Boston Commons have sent Mark Kerr to the minors.
2018-05-21The Boston Commons have promoted Mark Kerr to the major league team. The Boston Commons have sent Carlos Moreno to the minors.
2012-10-23Trade #1126650 has been completed between the Texas Rangers and the Boston Commons. The Boston Commons receive Bob Boehler, Draft Pick 2015 Round 2 TEX (Ed Lanier), Draft Pick 2013 Round 1 TEX (Mark Kerr) from the Texas Rangers in exchange for Draft Pick 2015 Round 1 BOS (Hal Birmingham). Protest This Trade.