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| Name | Team | Age |
| Jeff Nelson | Retired (1981, Age 38) | Died (2024, Age 81) |
| Drafted | Position | Bats/Throws |
| Round 3, Pick 39 (1965) |
RP | R/R |
| League | Option Years
|
Majors Service Time |
| Joe Medwick League | 0 | 10 years (74 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 | 6/9/1943 | |
| 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 |
| 1965 | Minors | 32.00 | 1 / 2 | 5 / 15 | 5 / 15 | 11 / 32 |
| 1966 | Minors | 18.00 | 0 / 1 | 0 / 7 | 2 / 10 | 2 / 18 |
| 1967 | Majors | 20.00 | 0 / 0 | 4 / 11 | 0 / 9 | 4 / 20 |
| 1968 | Majors | 27.00 | 1 / 1 | 4 / 11 | 4 / 15 | 9 / 27 |
| 1969 | Minors | 10.00 | 0 / 1 | 1 / 4 | 1 / 5 | 2 / 10 |
| 1969 | Majors | 22.86 | 0 / 0 | 3 / 9 | 2 / 13 | 5 / 22 |
| 1970 | Minors | 8.00 | 0 / 0 | 2 / 4 | 1 / 4 | 3 / 8 |
| 1970 | Majors | 26.12 | 0 / 0 | 1 / 12 | 3 / 14 | 4 / 26 |
| 1971 | Majors | 51.03 | 1 / 11 | 4 / 20 | 5 / 20 | 10 / 51 |
| 1972 | Majors | 48.20 | 1 / 7 | 1 / 16 | 2 / 25 | 4 / 48 |
| 1973 | Majors | 49.77 | 1 / 14 | 0 / 22 | 1 / 13 | 2 / 49 |
| 1974 | Majors | 51.80 | 0 / 16 | 0 / 22 | 0 / 13 | 0 / 51 |
| 1975 | Majors | 42.29 | 2 / 8 | 0 / 18 | 0 / 16 | 2 / 42 |
| 1976 | Majors | 33.37 | 0 / 3 | 0 / 14 | 0 / 16 | 0 / 33 |
| 1977 | Majors | 41.45 | 0 / 5 | -5 / 18 | -1 / 18 | -6 / 41 |
| 1978 | Majors | 43.68 | -2 / 9 | -4 / 17 | 0 / 17 | -6 / 43 |
| 1979 | Majors | 44.79 | -2 / 7 | -1 / 18 | -1 / 19 | -4 / 44 |
| 1980 | Minors | 10.00 | 0 / 0 | 0 / 6 | 0 / 4 | 0 / 10 |
| 1980 | Majors | 26.43 | -4 / 0 | -6 / 16 | -3 / 10 | -13 / 26 |
| 1981 | Majors | 22.00 | 0 / 0 | 0 / 11 | 1 / 11 | 1 / 22 |
| Total | -1 / 85 | 9 / 271 | 22 / 267 | 30 / 623 |
| Date | Transaction |
| 1981-11-01 | Jeff Nelson has retired from the Free Agency Pool |
| 1981-04-01 | The Cleveland Rocks have waived Jeff Nelson. |
| 1980-07-13 | The Cleveland Rocks have promoted Jeff Nelson to the major league team. |
| 1980-07-13 | The Cleveland Rocks have acquired Jeff Nelson from the waiver wire. |
| 1980-06-23 | The Chicago Cubs have waived Jeff Nelson. |
| 1980-04-21 | The Chicago Cubs have promoted Felix Ganzel to the major league team. The Chicago Cubs have designated Jeff Nelson for assignment. |
| 1978-07-20 | A trade has been completed between the Boston Rogues Gallery and the Chicago Cubs. The Chicago Cubs receive Jeff Nelson, Eli McNulty, Alton Blanton, Draft Pick 1979 Round 3 BOS (Jeff Bockus) from the Boston Rogues Gallery in exchange for Ed Steinfeldt, Loren Birkbeck, Draft Pick 1979 Round 1 CHN (Arkady Rossovich), Draft Pick 1979 Round 2 CHN (Jonathan Crane). |
| 1976-07-14 | Jeff Nelson of the Boston Red Soxs is injured and is expected to be out 37 days. |
| 1975-06-29 | Jeff Nelson of the Boston Sons Of Liberty is injured and is expected to be out 15 days. |
| 1970-07-05 | The Boston Yankees have promoted Jeff Nelson to the major league team. The Boston Yankees have promoted Joe Girardi to the major league team. The Boston Yankees have promoted Joba Chamberlain to the major league team. The Boston Yankees have sent Graeme Lloyd to the minors. The Boston Yankees have sent Whitey Ford to the minors. The Boston Yankees have sent Elston Howard to the minors. |
| 1969-09-08 | The Boston Yankees have promoted Graeme Lloyd to the major league team. The Boston Yankees have sent Jeff Nelson to the minors. |
| 1969-07-15 | The Boston Yankees have promoted Jeff Nelson to the major league team. The Boston Yankees have sent Rob Abadie to the minors. |
| 1969-05-23 | The Boston Yankees have promoted Rob Abadie to the major league team. The Boston Yankees have promoted Chuck Burdette to the major league team. The Boston Yankees have sent Goose Gossage to the minors. The Boston Yankees have sent Jeff Nelson to the minors. |
| 1969-04-30 | The Boston Yankees have promoted Jeff Nelson to the major league team. |
| 1969-04-22 | The Boston Yankees have renamed Sumpter McCormick to Jeff Nelson. |
| 1969-04-17 | The Boston Yankees have acquired Sumpter McCormick from the waiver wire. |
| 1967-04-01 | The Philadelphia Phillies have waived Sumpter McCormick. |
| 1966-04-29 | A trade has been completed between the New York Mets and the Philadelphia Phillies. The Philadelphia Phillies receive Sumpter McCormick, Frank Cheney from the New York Mets in exchange for Jim Nash. |
| 1966-04-05 | The New York Mets have acquired Sumpter McCormick from the waiver wire. |
| 1966-04-01 | The New York Mets have waived Sumpter McCormick. |