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| Name | Team | Age |
| Harry Oster | Retired (1993, Age 35) | Died (2025, Age 67) |
| Drafted | Position | Bats/Throws |
| Round 2, Pick 22 (1979) |
RP | R/L |
| League | Option Years
|
Majors Service Time |
| Orlando Cepeda League (AA) | 0 | 8 years (135 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 | 1/2/1958 | |
| WS Rings | WS Appearances | LCS Appearances |
| 0 | 0 | 1 |
| Alt Pos (---) | Alt Pos (---) | Alt Pos (---) |
| (0.0 %) | (0.0 %) | (0.0 %) |
Stats | Splits | Playoffs | Energy | Improvements | Past Skills | Awards | Batting | Fielding | Game Log
| Date | Opponent | W | L | GS | SV | BS | IP | H | R | ER | BB | SO | WHIP | ERA |
| Date | Transaction |
| 1993-11-01 | Harry Oster has retired from the Detroit Drifters |
| 1988-03-26 | The Cleveland Drifters have promoted Fred Calvert to the major league team. The Cleveland Drifters have promoted Harry Oster to the major league team. The Cleveland Drifters have promoted Earl Howitt to the major league team. |
| 1985-04-19 | The Cleveland Drifters have acquired Harry Oster from the waiver wire. |
| 1985-04-01 | The St. Louis Outlaws have waived Harry Oster. |
| 1982-10-03 | The St. Louis Sledge have sent Bill Boone to the minors. The St. Louis Sledge have sent Harry Oster to the minors. |
| 1982-09-28 | The St. Louis Sledge have promoted Harry Oster to the major league team. |
| 1982-08-19 | The St. Louis Sledge have designated Jack Griesenbeck for assignment. The St. Louis Sledge have sent Harry Oster to the minors. |
| 1982-07-15 | The St. Louis Sledge have promoted Harry Oster to the major league team. |
| 1982-07-08 | The St. Louis Sledge have promoted Johnny Davis to the major league team. The St. Louis Sledge have sent Harry Oster to the minors. |
| 1982-06-13 | The St. Louis Sledge have promoted Harry Oster to the major league team. The St. Louis Sledge have designated Mark Carisch for assignment. |
| 1982-05-30 | The St. Louis Sledge have promoted Earl Cristante to the major league team. The St. Louis Sledge have sent Harry Oster to the minors. |
| 1979-09-06 | The Chicago Sledge have promoted Harry Oster to the major league team. |