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| Name | Team | Age |
| Frank Kostro | Retired (1976, Age 34) | Died (2027, Age 85) |
| Drafted | Position | Bats/Throws |
| Round 2, Pick 32 (1961) |
LF | R/R |
| League | Option Years
|
Majors Service Time |
| Orlando Cepeda League (AAA) | 0 | 0 years (17 games) |
| Total Rating
|
Arm | Range |
| Contact vs R | Contact vs L | Speed |
| Power vs R | Power vs L | Bunting |
| Endurance | Velocity | Control |
| Leadership
|
Mentor vs RHP
|
Mentor vs LHP
|
| Health
|
Injured Days
|
Birthday |
| 0 | 6/11/1942 | |
| WS Rings | WS Appearances | LCS Appearances |
| 0 | 0 | 0 |
| Alt Pos (RF) | Alt Pos (---) | Alt Pos (---) |
| (2.3 %) | (0.0 %) | (0.0 %) |
| Alt Pos (---) | Alt Pos (---) | Alt Pos (---) |
| (0.0 %) | (0.0 %) | (0.0 %) |
| Alt Pos (---) | Alt Pos (---) | |
| (0.0 %) | (0.0 %) |
Stats | Splits | Playoffs | Positions | Improvements | Past Skills | Awards | Fielding | Game Log
| Year | Team | C | 1B | 2B | 3B | SS | LF | CF | RF | PH |
| 1971 | PIT | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 |
| Date | Transaction |
| 1976-11-01 | Frank Kostro has retired from the Free Agency Pool |
| 1973-05-10 | The Pittsburgh Hammers have waived Frank Kostro. |
| 1972-04-01 | The Pittsburgh Hammers have promoted TJ Turner to the major league team. The Pittsburgh Hammers have designated Frank Kostro for assignment. |
| 1971-09-15 | The Pittsburgh Hammers have promoted Victor Drews to the major league team. The Pittsburgh Hammers have promoted Frank Kostro to the major league team. The Pittsburgh Hammers have sent Jap Hubbell to the minors. |
| 1971-04-25 | The Pittsburgh Hammers have acquired Frank Kostro from the waiver wire. |
| 1970-04-01 | The St. Louis Ducks have waived Frank Kostro. |
| 1964-08-10 | A trade has been completed between the Boston BayPirates and the Brooklyn Ducks. The Brooklyn Ducks receive Joe Sanchez, Pumpsie Green, Whale Walters, Frank Kostro, Gene Michael, Freddie Shirley, Draft Pick - 1965 Round 5 (BOS), Draft Pick - 1965 Round 4 (BOS), Draft Pick - 1965 Round 3 (BOS) from the Boston BayPirates in exchange for Chick Smith, Willie Beckmann. |
| 1964-04-13 | The Boston BayPirates have renamed Bill Mahoney to Frank Kostro. |
| 1964-04-10 | The Boston BayPirates have acquired Bill Mahoney from the waiver wire. |
| 1964-03-31 | The Pittsburgh Hammers have acquired Frank Klimchock from the waiver wire. The Pittsburgh Hammers have waived Bill Mahoney. |