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| Name | Team | Age |
| Jeff Koelling | Retired (1976, Age 36) | Died (2018, Age 78) |
| Drafted | Position | Bats/Throws |
| Round 3, Pick 35 (1962) |
RP | R/R |
| League | Option Years
|
Majors Service Time |
| Jim Edmonds League | 0 | 4 years (123 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 | 6/11/1940 | |
| 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 | Vs | G | IP | SO | BB | H | WHIP |
| 1970 | AHB | 1 | 2.0 | 0 | 0 | 4 | 2.00 |
| 1970 | LHB | 1 | 0.1 | 0 | 0 | 1 | 3.00 |
| 1970 | RHB | 1 | 1.2 | 0 | 0 | 3 | 1.80 |
| 1971 | AHB | 37 | 41.2 | 34 | 11 | 50 | 1.46 |
| 1971 | HHB | 31 | 56.2 | 37 | 23 | 46 | 1.22 |
| 1971 | LHB | 62 | 45.1 | 28 | 17 | 48 | 1.43 |
| 1971 | RHB | 62 | 53.0 | 43 | 17 | 48 | 1.23 |
| 1972 | AHB | 46 | 49.1 | 26 | 19 | 49 | 1.38 |
| 1972 | HHB | 41 | 42.1 | 28 | 15 | 50 | 1.54 |
| 1972 | LHB | 81 | 45.2 | 25 | 17 | 59 | 1.66 |
| 1972 | RHB | 75 | 46.0 | 29 | 17 | 40 | 1.24 |
| 1973 | AHB | 33 | 40.0 | 28 | 23 | 42 | 1.63 |
| 1973 | HHB | 36 | 44.1 | 30 | 5 | 48 | 1.20 |
| 1973 | LHB | 65 | 43.1 | 25 | 19 | 52 | 1.64 |
| 1973 | RHB | 67 | 41.0 | 33 | 9 | 38 | 1.15 |
| 1974 | AHB | 41 | 40.2 | 25 | 17 | 45 | 1.52 |
| 1974 | HHB | 41 | 50.1 | 29 | 22 | 52 | 1.47 |
| 1974 | LHB | 75 | 44.2 | 30 | 22 | 43 | 1.46 |
| 1974 | RHB | 78 | 46.1 | 24 | 17 | 54 | 1.53 |
| 1975 | AHB | 33 | 38.1 | 22 | 11 | 41 | 1.36 |
| 1975 | HHB | 45 | 55.2 | 33 | 15 | 52 | 1.20 |
| 1975 | LHB | 69 | 51.0 | 28 | 17 | 46 | 1.24 |
| 1975 | RHB | 73 | 43.0 | 27 | 9 | 47 | 1.30 |
| 2163 | AHB | 0 | 0.0 | 0 | 0 | 0 | 0.00 |
| 2163 | HHB | 0 | 0.0 | 0 | 0 | 0 | 0.00 |
| 2163 | LHB | 0 | 0.0 | 0 | 0 | 0 | 0.00 |
| 2163 | RHB | 0 | 0.0 | 0 | 0 | 0 | 0.00 |
| Total | AHB | 191 | 212.0 | 135 | 81 | 231 | 1.47 |
| Total | HHB | 194 | 249.1 | 157 | 80 | 248 | 1.32 |
| Total | LHB | 353 | 230.1 | 136 | 92 | 249 | 1.48 |
| Total | RHB | 356 | 231.0 | 156 | 69 | 230 | 1.29 |
| Total | 385 | 461.1 | 292 | 161 | 479 | 1.39 |
| Date | Transaction |
| 1976-11-01 | Jeff Koelling has retired from the Free Agency Pool |
| 1976-06-23 | The Washington Wings have waived Jeff Koelling. |
| 1976-04-01 | The Washington Wings have promoted Mickey Lolich to the major league team. The Washington Wings have designated Jeff Koelling for assignment. |
| 1972-07-17 | Jeff Koelling of the Washington Wings is injured and is expected to be out 20 days. |
| 1971-05-21 | Jeff Koelling of the Washington Wings is injured and is expected to be out 25 days. |
| 1971-05-17 | The Washington Wings have promoted Jeff Koelling to the major league team. |
| 1971-05-17 | The Washington Wings have acquired Jeff Koelling from the waiver wire. |
| 1971-04-21 | The St. Louis Cards have waived Jeff Koelling. |
| 1971-03-25 | The St. Louis Cards have designated Wib Virgil for assignment. The St. Louis Cards have designated Ed Graham for assignment. The St. Louis Cards have designated Brad Smalley for assignment. The St. Louis Cards have designated Jeff Koelling for assignment. |
| 1970-09-30 | The St. Louis Cards have promoted Jeff Koelling to the major league team. |
| 1970-09-17 | The St. Louis Cards have acquired Jeff Koelling from the waiver wire. |
| 1964-04-01 | The St. Louis Cards have waived Jeff Koelling. |
| 1963-09-21 | The St. Louis Cards have acquired Jeff Koelling from the waiver wire. |
| 1963-04-01 | The Philadelphia Stalkers have waived Jeff Koelling. |
| 1963-03-25 | The Philadelphia Stalkers have acquired Jeff Koelling from the waiver wire. |
| 1962-07-11 | The St. Louis Cards have waived Jeff Koelling. |