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| Name | Team | Age |
| Mark Kerr | Retired (2026, Age 35) | Died (2064, Age 73) |
| Drafted | Position | Bats/Throws |
| Round 1, Pick 7 (2013) |
RP | R/R |
| League | Option Years
|
Majors Service Time |
| Jesse Orosco League | 0 | 8 years (7 games) |
| Total Rating
|
Arm | Range |
| Contact vs R | Contact vs L | Speed |
| Power vs R | Power vs L | Bunting |
| Endurance | Velocity | Control |
| Leadership
|
Mentor Value
|
|
| Health
|
Injured Days
|
Birthday |
| 0 | 7/3/1991 | |
| WS Rings | WS Appearances | LCS Appearances |
| 0 | 0 | 0 |
| Alt Pos (---) | Alt Pos (---) | Alt Pos (---) |
| (0.0 %) | (0.0 %) | (0.0 %) |
Stats | Splits | Playoffs | Energy | Improvements | Past Skills | Awards | Batting | Fielding | Game Log
| Year | Vs | G | IP | SO | BB | H | WHIP |
| 2018 | AHB | 9 | 10.0 | 7 | 5 | 12 | 1.70 |
| 2018 | HHB | 9 | 13.2 | 2 | 4 | 10 | 1.02 |
| 2018 | LHB | 17 | 16.0 | 5 | 5 | 13 | 1.13 |
| 2018 | RHB | 16 | 7.2 | 4 | 4 | 9 | 1.70 |
| 2019 | AHB | 26 | 43.1 | 33 | 9 | 41 | 1.15 |
| 2019 | HHB | 33 | 48.1 | 37 | 17 | 46 | 1.30 |
| 2019 | LHB | 59 | 57.2 | 47 | 17 | 55 | 1.25 |
| 2019 | RHB | 47 | 34.0 | 23 | 9 | 32 | 1.21 |
| 2020 | AHB | 27 | 34.1 | 33 | 13 | 33 | 1.34 |
| 2020 | HHB | 16 | 18.0 | 11 | 6 | 22 | 1.56 |
| 2020 | LHB | 37 | 28.0 | 22 | 8 | 30 | 1.36 |
| 2020 | RHB | 36 | 24.1 | 22 | 11 | 25 | 1.48 |
| 2021 | AHB | 27 | 35.0 | 25 | 10 | 43 | 1.51 |
| 2021 | HHB | 20 | 26.1 | 14 | 7 | 25 | 1.22 |
| 2021 | LHB | 43 | 34.0 | 22 | 11 | 40 | 1.50 |
| 2021 | RHB | 41 | 27.1 | 17 | 6 | 28 | 1.24 |
| 2022 | AHB | 24 | 32.0 | 22 | 12 | 24 | 1.13 |
| 2022 | HHB | 30 | 40.2 | 36 | 18 | 52 | 1.72 |
| 2022 | LHB | 51 | 39.2 | 35 | 17 | 47 | 1.61 |
| 2022 | RHB | 47 | 33.0 | 23 | 13 | 29 | 1.27 |
| 2023 | AHB | 26 | 30.0 | 26 | 8 | 32 | 1.33 |
| 2023 | HHB | 27 | 29.0 | 30 | 12 | 23 | 1.21 |
| 2023 | LHB | 51 | 31.1 | 34 | 11 | 34 | 1.44 |
| 2023 | RHB | 41 | 27.2 | 22 | 9 | 21 | 1.08 |
| 2024 | AHB | 26 | 28.2 | 16 | 16 | 29 | 1.57 |
| 2024 | HHB | 25 | 28.1 | 20 | 12 | 27 | 1.38 |
| 2024 | LHB | 49 | 33.2 | 23 | 18 | 35 | 1.57 |
| 2024 | RHB | 46 | 23.1 | 13 | 10 | 21 | 1.33 |
| 2025 | AHB | 34 | 41.2 | 26 | 10 | 44 | 1.30 |
| 2025 | HHB | 32 | 29.1 | 21 | 12 | 32 | 1.50 |
| 2025 | LHB | 60 | 39.2 | 22 | 14 | 51 | 1.64 |
| 2025 | RHB | 56 | 31.1 | 25 | 8 | 25 | 1.05 |
| 2026 | AHB | 42 | 45.2 | 22 | 12 | 64 | 1.66 |
| 2026 | HHB | 50 | 56.2 | 45 | 23 | 69 | 1.62 |
| 2026 | LHB | 87 | 58.0 | 43 | 19 | 82 | 1.74 |
| 2026 | RHB | 81 | 44.1 | 24 | 16 | 51 | 1.51 |
| Total | AHB | 241 | 300.2 | 210 | 95 | 322 | 1.39 |
| Total | HHB | 242 | 290.1 | 216 | 111 | 306 | 1.44 |
| Total | LHB | 454 | 338.0 | 253 | 120 | 387 | 1.50 |
| Total | RHB | 411 | 253.0 | 173 | 86 | 241 | 1.29 |
| Total | 483 | 591.0 | 426 | 206 | 628 | 1.41 |
| Date | Transaction |
| 2026-11-01 | Mark Kerr has retired from the Boston Commons |
| 2025-09-04 | Mark Kerr of the Boston Commons is injured and is expected to be out 40 days. |
| 2019-04-11 | The Boston Commons have promoted Mark Kerr to the major league team. The Boston Commons have designated J.R. Atz for assignment. |
| 2018-06-28 | The Boston Commons have sent Mark Kerr to the minors. |
| 2018-05-21 | The Boston Commons have promoted Mark Kerr to the major league team. The Boston Commons have sent Carlos Moreno to the minors. |
| 2012-10-23 | Trade #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. |