Show classic player card
Harold Baines League
4-1-2053
Koichi Yamanaka Right Field
Retired (2025, Age 36)
CAREER BIOGRAPHICAL DATA
AVG .258 Total Rating B+   Bats/Throws B/R
OPS .737 Status Retired (2025) Option Years 0  
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 B+ Contact vs. L B+ Endurance B-   Ldrship B-
Power vs. R B+ Power vs. L B+ Velocity F    Mentor vR A+
Speed B+ Bunt D+ Control D    Mentor vL A+
POSITIONS DEFENSE/HEALTH POSTSEASON
 C * --- SS --- Range B- WS Rings 3
1B --- LF F  (2.3%) Arm B  WS Appearances 3
2B D+ (21.5%) CF ---   Health C- LCS Appearances 4
3B --- RF A+ (100%)   Injured Days 0 All Star Teams 1
* League requires 50% rating to start at catcher.

Year Vs G AB H 2B 3B HR RBI BB SO OPS OBP SLG ISO AVG
2017 LHP 49 121 24 4 0 4 9 9 29 .594 .263 .331 .132 .198
2017 RHP 94 316 86 15 2 10 37 34 77 .771 .344 .427 .155 .272
2018 LHP 54 142 36 7 3 4 17 14 29 .748 .318 .430 .176 .254
2018 RHP 117 392 97 19 4 6 34 39 74 .678 .316 .362 .115 .247
2019 LHP 60 140 36 6 1 6 15 13 27 .763 .320 .443 .186 .257
2019 RHP 119 426 112 22 6 8 38 51 81 .747 .348 .399 .136 .263
2020 LHP 46 113 21 3 1 2 10 9 17 .529 .246 .283 .097 .186
2020 RHP 123 457 113 21 4 11 38 46 93 .701 .318 .383 .136 .247
2021 LHP 49 135 38 6 2 4 14 12 31 .785 .340 .444 .163 .281
2021 RHP 117 418 107 18 4 9 27 40 85 .705 .322 .383 .127 .256
2022 LHP 72 121 34 4 2 6 18 14 21 .854 .358 .496 .215 .281
2022 RHP 129 403 108 18 4 16 74 41 73 .784 .333 .452 .184 .268
2023 LHP 21 35 13 1 3 2 12 3 4 1.164 .421 .743 .371 .371
2023 RHP 79 172 39 4 5 6 19 15 51 .702 .289 .413 .186 .227
2024 LHP 36 59 16 5 0 0 5 2 8 .646 .290 .356 .085 .271
2024 RHP 54 170 54 7 2 8 34 18 23 .900 .377 .524 .206 .318
2025 LHP 3 3 1 1 0 0 0 0 0 1.000 .333 .667 .333 .333
2025 RHP 5 4 1 0 0 0 1 1 0 .650 .400 .250 .000 .250
Total LHP 390 869 219 37 12 28 100 76 166 .732 .313 .419 .167 .252
Total RHP 837 2758 717 124 31 74 302 285 557 .738 .330 .408 .148 .260
Total 934 3627 936 161 43 102 402 361 723 .737 .326 .411 .152 .258
Career Transactions
DateTransaction
2025-11-01Koichi Yamanaka has retired from the Philadelphia Jesuits
2022-05-07Trade #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.
2022-05-05The Boston Patriots have placed Koichi Yamanaka on the trade block.
2018-06-08Koichi Yamanaka of the Boston Patriots is injured and is expected to be out 9 days.
2017-06-26Koichi Yamanaka of the Boston Patriots is injured and is expected to be out 24 days.
2017-04-21The 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.