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| Name | Team | Age |
| Katsuhiko Mayumi | Retired (2303, Age 37) | 42 |
| Drafted | Position | Bats/Throws |
| Round 2, Pick 19 (2298) |
RP | L/L |
| League | Option Years
|
Majors Service Time |
| Orlando Cepeda League (AAA) | 0 | 4 years (153 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 | 7/12/2266 | |
| 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
|
Team | W | L | G | GS | CG | SHO | SV | BS | IP | H | R | ER | HBP | BB | SO | WHIP | ERA |
| 2298 | BOS | 0 | 6 | 54 | 9 | 0 | 0 | 0 | 1 | 101.0 | 114 | 55 | 48 | 1 | 28 | 79 | 1.41 | 4.28 |
| 2299 | BOS | 3 | 8 | 65 | 0 | 0 | 0 | 11 | 4 | 67.0 | 88 | 46 | 40 | 1 | 33 | 45 | 1.81 | 5.37 |
| 2300 | BOS | 3 | 6 | 60 | 0 | 0 | 0 | 30 | 3 | 65.0 | 59 | 33 | 30 | 2 | 20 | 48 | 1.22 | 4.15 |
| 2301 | BAL | 5 | 6 | 54 | 0 | 0 | 0 | 0 | 3 | 73.1 | 83 | 38 | 30 | 1 | 26 | 40 | 1.49 | 3.68 |
| 2302 | BAL | 2 | 1 | 31 | 0 | 0 | 0 | 1 | 1 | 61.0 | 58 | 24 | 24 | 0 | 21 | 39 | 1.30 | 3.54 |
| 2308 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 | |
| Total | 13 | 27 | 264 | 9 | 0 | 0 | 42 | 12 | 367.1 | 402 | 196 | 172 | 5 | 128 | 251 | 1.44 | 4.21 |
| Date | Transaction |
| 2303-11-01 | Katsuhiko Mayumi has retired from the Kansas City Zephyrs |
| 2303-07-14 | The Kansas City Zephyrs have acquired Katsuhiko Mayumi from the waiver wire. The Kansas City Zephyrs have waived Donne Faszholz. |
| 2303-03-25 | The Baltimore Orioles have waived Katsuhiko Mayumi. |
| 2301-04-11 | The Baltimore Orioles have acquired Katsuhiko Mayumi from the waiver wire. |
| 2301-04-01 | The Boston Blue Sox have designated Oscar Skowron for assignment. The Boston Blue Sox have designated Katsuhiko Mayumi for assignment. |
| 2300-08-31 | Katsuhiko Mayumi of the Boston Blue Sox is injured and is expected to be out 13 days. |
| 2300-04-06 | The Boston Blue Sox have placed Katsuhiko Mayumi on the trade block. |
| 2298-04-01 | The New York Blue Sox have promoted Katsuhiko Mayumi to the major league team. |