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Career Transactions
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Harold Baines League 4-1-2053 |
| Koichi Yamanaka |  Right FieldRetired (2025, Age 36) |
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CAREER | BIOGRAPHICAL DATA | ||||
|---|---|---|---|---|---|---|
| AVG | .258 | Total Rating |
|
Bats/Throws | B/R | |
| OPS | .737 | Status | Retired (2025) | Option Years | 0
|
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| H | 936 | Age | 63 (OS 64) | Date of Birth | 07-10-1989 | |
| HR | 102 | Drafted | Round 1, Pick 8 (2014) |
Majors Svc Time | 9 years (9 games) |
|
| RBI | 402 | |||||
| SB | 158 | |||||
| OFFENSE | PITCHING | MENTORING | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Contact vs. R | Contact vs. L | Endurance |
Ldrship |
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| Power vs. R | Power vs. L | Velocity |
Mentor vR |
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| Speed | Bunt | Control |
Mentor vL |
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| POSITIONS | DEFENSE/HEALTH | POSTSEASON | |||||||
| C * | --- | SS | --- | Range | WS Rings | 3 | |||
| 1B | --- | LF | (2.3%) | Arm | WS Appearances | 3 | |||
| 2B | (21.5%) | CF | --- |
Health |
LCS Appearances | 4 | |||
| 3B | --- | RF | (100%) |
Injured Days |
0 | All Star Teams | 1 | ||
* League requires 50% rating to start at catcher.
| Year | Type | OS Age | Chances
|
Active | GS | Injured | Contact vs R | Power vs R | Contact vs L | Power vs L | Speed | Arm | Range | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2014 | Minors | 25 | 8.00 | 1 / 3 | 0 / 0 | 0 / 1 | 0 / 2 | 1 / 1 | 0 / 0 | 1 / 1 | 3 / 8 | |||
| 2015 | Minors | 26 | 51.00 | 2 / 14 | 0 / 10 | 1 / 5 | 0 / 8 | 0 / 5 | 1 / 4 | 3 / 5 | 7 / 51 | |||
| 2016 | Minors | 27 | 59.00 | 1 / 6 | 3 / 10 | 1 / 11 | 2 / 10 | 0 / 9 | 5 / 8 | 3 / 5 | 15 / 59 | |||
| 2017 | Minors | 28 | 7.00 | 0 / 0 | 0 / 0 | 0 / 0 | 1 / 2 | 0 / 1 | 1 / 2 | 0 / 2 | 2 / 7 | |||
| 2017 | Majors | 28 | 51.69 | 124 | 105 | 20 | 0 / 12 | 0 / 2 | 0 / 9 | 0 / 5 | 0 / 9 | 5 / 7 | 0 / 7 | 5 / 51 |
| 2018 | Majors | 29 | 64.33 | 154 | 129 | 8 | 0 / 7 | 0 / 5 | 0 / 8 | 0 / 11 | 1 / 11 | 0 / 8 | 2 / 14 | 3 / 64 |
| 2019 | Majors | 30 | 67.32 | 162 | 135 | 0 | 0 / 8 | 0 / 17 | 0 / 6 | 0 / 4 | 0 / 16 | 0 / 7 | 0 / 9 | 0 / 67 |
| 2020 | Majors | 31 | 67.32 | 162 | 135 | 0 | 0 / 16 | 0 / 13 | 0 / 5 | 0 / 9 | 0 / 7 | 0 / 6 | 0 / 11 | 0 / 67 |
| 2021 | Majors | 32 | 67.32 | 162 | 135 | 0 | 1 / 10 | 1 / 13 | 0 / 8 | 0 / 10 | 0 / 10 | 1 / 12 | 0 / 4 | 3 / 67 |
| 2022 | Majors | 33 | 64.21 | 162 | 135 | 0 | 0 / 9 | 0 / 10 | 0 / 10 | 0 / 7 | 0 / 13 | 0 / 6 | 0 / 9 | 0 / 64 |
| 2023 | Majors | 34 | 38.05 | 162 | 46 | 0 | 0 / 4 | -5 / 5 | -1 / 6 | -4 / 4 | -8 / 7 | -1 / 5 | -3 / 7 | -22 / 38 |
| 2024 | Majors | 35 | 39.06 | 162 | 60 | 0 | -2 / 8 | -6 / 6 | 0 / 6 | -3 / 1 | -10 / 4 | 0 / 8 | -2 / 6 | -23 / 39 |
| 2025 | Majors | 36 | 15.95 | 162 | 0 | 0 | -4 / 3 | -2 / 1 | -6 / 3 | -2 / 3 | -3 / 2 | 0 / 0 | 0 / 3 | -17 / 15 |
| Total | 1412 | 880 | 28 | -1 / 100 | -9 / 92 | -5 / 78 | -6 / 76 | -19 / 95 | 12 / 73 | 4 / 83 | -24 / 597 |
| Date | Transaction |
| 2025-11-01 | Koichi Yamanaka has retired from the Philadelphia Jesuits |
| 2022-05-07 | Trade #1361901 has been completed between the Philadelphia Jesuits and the Boston Patriots. The Boston Patriots receive Hod Bauer, Draft Pick 2025 Round 2 PHI (Brad Pascual), Draft Pick 2024 Round 2 PHI (Bryan Taylor) from the Philadelphia Jesuits in exchange for Koichi Yamanaka. |
| 2022-05-05 | The Boston Patriots have placed Koichi Yamanaka on the trade block. |
| 2018-06-08 | Koichi Yamanaka of the Boston Patriots is injured and is expected to be out 9 days. |
| 2017-06-26 | Koichi Yamanaka of the Boston Patriots is injured and is expected to be out 24 days. |
| 2017-04-21 | The Boston Patriots have promoted Koichi Yamanaka to the major league team. The Boston Patriots have promoted Phil Poholsky to the major league team. The Boston Patriots have sent Dick Jones to the minors. The Boston Patriots have waived John Force. |