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| Name | Team | Age |
| Jack Helfand | Retired (1991, Age 34) | Died (2017, Age 60) |
| Drafted | Position | Bats/Throws |
| Round 3, Pick 45 (1976) |
RP | L/L |
| League | Option Years
|
Majors Service Time |
| Walter Johnson League | 0 | 2 years (4 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 | 3/25/1957 | |
| 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 |
| 1976 | Minors | 12.00 | 0 / 1 | 3 / 4 | 2 / 7 | 5 / 12 |
| 1977 | Minors | 15.00 | 1 / 1 | 0 / 9 | 1 / 5 | 2 / 15 |
| 1978 | Minors | 12.00 | 0 / 1 | 0 / 5 | 1 / 6 | 1 / 12 |
| 1979 | Minors | 10.00 | 0 / 0 | 0 / 5 | 0 / 5 | 0 / 10 |
| 1980 | Minors | 4.00 | 0 / 1 | 0 / 0 | 2 / 3 | 2 / 4 |
| 1981 | Minors | 11.00 | 0 / 0 | 2 / 7 | 1 / 4 | 3 / 11 |
| 1982 | Minors | 8.00 | 0 / 0 | 1 / 5 | 1 / 3 | 2 / 8 |
| 1983 | Minors | 9.00 | 0 / 0 | 1 / 3 | 1 / 6 | 2 / 9 |
| 1984 | Majors | 35.30 | 1 / 3 | 0 / 16 | 1 / 16 | 2 / 35 |
| 1985 | Majors | 47.68 | 1 / 11 | 1 / 13 | 4 / 23 | 6 / 47 |
| 1986 | Minors | 6.00 | 0 / 0 | 1 / 2 | 0 / 4 | 1 / 6 |
| 1986 | Majors | 13.74 | 0 / 0 | 0 / 4 | 0 / 9 | 0 / 13 |
| 1987 | Minors | 2.00 | 0 / 0 | 0 / 1 | 0 / 1 | 0 / 2 |
| 1988 | Minors | 5.00 | 0 / 1 | 0 / 2 | 0 / 2 | 0 / 5 |
| 1989 | Minors | 13.00 | 0 / 0 | 0 / 6 | 0 / 7 | 0 / 13 |
| 1990 | Majors | 6.00 | 0 / 0 | 0 / 5 | 0 / 1 | 0 / 6 |
| 1991 | Majors | 10.00 | 0 / 0 | 1 / 5 | 0 / 5 | 1 / 10 |
| Total | 3 / 19 | 10 / 92 | 14 / 107 | 27 / 218 |
| Date | Transaction |
| 1991-11-01 | Jack Helfand has retired from the Free Agency Pool |
| 1990-05-13 | The Philadelphia Athletics have waived Jack Helfand. |
| 1987-07-02 | The Philadelphia Athletics have acquired Jack Helfand from the waiver wire. |
| 1987-04-01 | The Chicago Malumettes have waived Jack Helfand. |
| 1986-05-28 | The Chicago Malumettes have designated Jack Helfand for assignment. |
| 1984-05-23 | The Chicago Malumettes have promoted Bert Sullivan to the major league team. The Chicago Malumettes have promoted Jack Helfand to the major league team. |
| 1984-05-23 | The Chicago Malumettes have acquired Jack Helfand from the waiver wire. The Chicago Malumettes have waived Bill Warner. |
| 1984-04-01 | The Cleveland Heavenly Hogs have waived Jack Helfand. |
| 1978-10-03 | The New York Giants have sent Jack Helfand to the minors. |
| 1978-10-03 | The New York Giants have promoted Jack Helfand to the major league team. The New York Giants have sent Frank Walbeck to the minors. |