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| Name | Team | Age |
| John Hallett | Retired (2026, Age 34) | Died (2068, Age 77) |
| Drafted | Position | Bats/Throws |
| Round 2, Pick 25 (2014) |
SP | L/L |
| League | Option Years
|
Majors Service Time |
| Ken Griffey Jr League | 0 | 4 years (149 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 | 11/13/1991 | |
| 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 | Type
|
Chances
|
Endurance | Velocity | Control | Total |
| 2014 | Minors | 27.00 | 0 / 4 | 4 / 11 | 6 / 12 | 10 / 27 |
| 2015 | Majors | 25.00 | 0 / 0 | 6 / 11 | 7 / 14 | 13 / 25 |
| 2016 | Majors | 28.00 | 0 / 1 | 3 / 10 | 3 / 17 | 6 / 28 |
| 2017 | Majors | 30.00 | 0 / 1 | 3 / 18 | 3 / 11 | 6 / 30 |
| 2018 | Minors | 19.00 | 0 / 1 | 3 / 11 | 3 / 7 | 6 / 19 |
| 2019 | Minors | 24.00 | 0 / 0 | 0 / 14 | 1 / 10 | 1 / 24 |
| 2020 | Minors | 26.00 | 0 / 3 | 1 / 13 | 2 / 10 | 3 / 26 |
| 2021 | Minors | 8.00 | 0 / 1 | 0 / 4 | 0 / 3 | 0 / 8 |
| 2021 | Majors | 41.23 | 0 / 7 | 2 / 15 | 3 / 19 | 5 / 41 |
| 2022 | Majors | 43.82 | 0 / 5 | 1 / 22 | 0 / 16 | 1 / 43 |
| 2023 | Majors | 38.59 | 0 / 7 | 0 / 13 | 2 / 18 | 2 / 38 |
| 2024 | Majors | 33.78 | 0 / 4 | 0 / 15 | 0 / 14 | 0 / 33 |
| 2025 | Majors | 42.37 | -2 / 11 | -4 / 19 | -4 / 12 | -10 / 42 |
| 2026 | Minors | 12.00 | 0 / 1 | 0 / 5 | 0 / 6 | 0 / 12 |
| 2026 | Majors | 5.75 | -3 / 0 | -8 / 2 | -5 / 3 | -16 / 5 |
| Total | -5 / 46 | 11 / 183 | 21 / 172 | 27 / 401 |
| Date | Transaction |
| 2026-11-01 | John Hallett has retired from the Free Agency Pool |
| 2026-07-31 | The Oakland Athletics have waived John Hallett. |
| 2026-04-25 | The Oakland Athletics have designated John Hallett for assignment. |
| 2026-04-05 | The Oakland Athletics have acquired John Hallett from the waiver wire. |
| 2026-03-05 | The Houston Twins have promoted David Strauss to the major league team. The Houston Twins have designated John Hallett for assignment. |
| 2024-07-25 | John Hallett of the Houston Twins is injured and is expected to be out 29 days. |
| 2021-05-05 | The Houston Twins have promoted John Hallett to the major league team. The Houston Twins have sent Paddy Cron to the minors. |
| 2018-05-24 | The Houston Twins have acquired John Hallett from the waiver wire. |
| 2015-04-06 | The Baltimore Pikers have waived John Hallett. |