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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 POS Team G GS INN TC PO A E DP +/- RF   FPCT GG
2018 P BOS 18 0 23.2 2 0 2 0 0 0 0.76 1.000
2019 P BOS 58 0 91.2 8 0 8 0 0 0 0.79 1.000
2020 P BOS 41 2 52.1 9 0 9 0 0 +1 1.55 1.000
2021 P BOS 47 0 61.1 8 0 8 0 3 0 1.17 1.000
2022 P BOS 53 0 72.2 13 3 10 0 0 -1 1.61 1.000
2023 P BOS 53 0 59.0 4 0 4 0 0 0 0.61 1.000
2024 P BOS 49 0 57.0 7 1 6 0 0 0 1.11 1.000
2025 P BOS 64 0 71.0 10 1 9 0 0 +1 1.27 1.000
2026 P BOS 89 0 102.1 15 1 14 0 1 0 1.32 1.000
Total 472 2 591.0 76 6 70 0 4 +1 1.16 1.000
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.