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| Name | Team | Age |
| Roberto Kiefer | Retired (1977, Age 36) | Died (2010, Age 69) |
| Drafted | Position | Bats/Throws |
| Round 2, Pick 25 (1959) |
SP | R/R |
| League | Option Years
|
Majors Service Time |
| Orlando Cepeda League (Majors) | 0 | 12 years (87 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 | 7/19/1941 | |
| WS Rings | WS Appearances | LCS Appearances |
| 1 | 1 | 5 |
| 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 |
| 1959 | Minors | 0.00 | 1 / 15 | 1 / 11 | 10 / 20 | 12 / 46 |
| 1960 | Minors | 0.00 | 2 / 16 | 0 / 19 | 6 / 17 | 8 / 52 |
| 1961 | Minors | 0.00 | 1 / 23 | 1 / 12 | 8 / 21 | 10 / 56 |
| 1961 | Majors | 0.00 | 0 / 0 | 0 / 1 | 0 / 0 | 0 / 1 |
| 1962 | Minors | 0.00 | 1 / 12 | 2 / 12 | 4 / 14 | 7 / 38 |
| 1962 | Majors | 0.00 | 0 / 0 | 1 / 5 | 0 / 12 | 1 / 17 |
| 1963 | Minors | 0.00 | 0 / 6 | 0 / 8 | 1 / 12 | 1 / 26 |
| 1963 | Majors | 0.00 | 0 / 0 | 1 / 6 | 1 / 4 | 2 / 10 |
| 1964 | Minors | 0.00 | 0 / 11 | 2 / 15 | 3 / 7 | 5 / 33 |
| 1964 | Majors | 0.00 | 0 / 0 | 0 / 4 | 6 / 9 | 6 / 13 |
| 1965 | Majors | 0.00 | 0 / 11 | 4 / 18 | 4 / 18 | 8 / 47 |
| 1966 | Majors | 0.00 | 2 / 12 | 1 / 18 | 1 / 19 | 4 / 49 |
| 1967 | Majors | 0.00 | 0 / 7 | 1 / 16 | 6 / 17 | 7 / 40 |
| 1968 | Majors | 0.00 | 1 / 11 | 0 / 21 | 0 / 18 | 1 / 50 |
| 1969 | Majors | 0.00 | 0 / 15 | 2 / 20 | 2 / 20 | 4 / 55 |
| 1970 | Majors | 0.00 | 0 / 11 | 0 / 20 | 0 / 20 | 0 / 51 |
| 1971 | Majors | 0.00 | 0 / 11 | 0 / 22 | 0 / 18 | 0 / 51 |
| 1972 | Majors | 0.00 | 0 / 0 | 0 / 0 | 0 / 0 | 0 / 0 |
| 1973 | Majors | 49.00 | 0 / 14 | 0 / 15 | 1 / 20 | 1 / 49 |
| 1974 | Majors | 54.52 | 0 / 13 | 0 / 21 | 0 / 20 | 0 / 54 |
| 1975 | Majors | 51.68 | 0 / 12 | 0 / 16 | 0 / 23 | 0 / 51 |
| 1976 | Majors | 58.16 | 0 / 17 | 0 / 17 | 0 / 24 | 0 / 58 |
| 1977 | Majors | 7.02 | 0 / 0 | 0 / 5 | 1 / 2 | 1 / 7 |
| Total | 8 / 217 | 16 / 302 | 54 / 335 | 78 / 854 |
| Date | Transaction |
| 1977-11-01 | Roberto Kiefer has retired from the Boston Zephyrs |
| 1977-08-24 | The Boston Zephyrs have promoted Roberto Kiefer to the major league team. The Boston Zephyrs have designated Bob Bubser for assignment. |
| 1977-08-24 | The Boston Zephyrs have acquired Roberto Kiefer from the waiver wire. |
| 1977-08-14 | The Baltimore BayPirates have waived Roberto Kiefer. |
| 1977-07-01 | The Baltimore BayPirates have acquired Roberto Kiefer from the waiver wire. |
| 1977-06-20 | The Cincinnati Bulldogs have waived Roberto Kiefer. |
| 1977-06-05 | The Cincinnati Bulldogs have designated Roberto Kiefer for assignment. |
| 1977-04-29 | The Cincinnati Bulldogs have acquired Roberto Kiefer from the waiver wire. |
| 1977-04-18 | The Kansas City Shooting Stars have promoted Andy Rohde to the major league team. The Kansas City Shooting Stars have designated Roberto Kiefer for assignment. |
| 1964-08-10 | The Kansas City Shooting Stars have promoted Roberto Kiefer to the major league team. |
| 1963-10-01 | The Kansas City Shooting Stars have sent Roberto Kiefer to the minors. The Kansas City Shooting Stars have sent Steve Lansford to the minors. |
| 1963-09-29 | The Kansas City Shooting Stars have promoted Roberto Kiefer to the major league team. |
| 1963-09-02 | The Kansas City Shooting Stars have promoted Marv Devlin to the major league team. The Kansas City Shooting Stars have sent Roberto Kiefer to the minors. |
| 1963-08-31 | The Kansas City Shooting Stars have promoted Roberto Kiefer to the major league team. The Kansas City Shooting Stars have designated Danny Patterson for assignment. |
| 1963-05-21 | The Kansas City Shooting Stars have demoted Roberto Kiefer to the minor leagues. |
| 1963-04-11 | The Kansas City Shooting Stars have promoted Roberto Kiefer to the major league team. The Kansas City Shooting Stars have designated Gary Jordan for assignment. |
| 1963-03-31 | The Detroit Shooting Stars have promoted Jim Matchick to the major league team. The Detroit Shooting Stars have sent Roberto Kiefer to the minors. |
| 1962-10-03 | The Detroit Shooting Stars have promoted Steve Lansford to the major league team. The Detroit Shooting Stars have promoted Roberto Kiefer to the major league team. The Detroit Shooting Stars have promoted Howie Jumonville to the major league team. The Detroit Shooting Stars have sent Dutch Mitchell to the minors. The Detroit Shooting Stars have sent Hunkey Hoerner to the minors. The Detroit Shooting Stars have sent Duffy Cox to the minors. |
| 1962-07-29 | The Detroit Shooting Stars have promoted Dutch Mitchell to the major league team. The Detroit Shooting Stars have sent Roberto Kiefer to the minors. |
| 1962-05-17 | The Detroit Shooting Stars have promoted Roberto Kiefer to the major league team. The Detroit Shooting Stars have sent Dutch Mitchell to the minors. |
| 1961-09-05 | The Detroit Shooting Stars have sent Roberto Kiefer to the minors. |
| 1961-08-29 | The Detroit Shooting Stars have promoted Roberto Kiefer to the major league team. The Detroit Shooting Stars have sent Danny Dee to the minors. |