| Home | Teams and Players | Homerun Kings | Top Salaries | Top RBIs | Hall of Fame |
| First Name | Last Name | Given Name | Birth Year | Birth Month | Birth Day | Birth City | Birth Country | Height | Weight | Age | Bats | Throws |
| Jack | O'Connor | Jack William | 1958 | 6 | 2 | Twentynine Palms | USA | 75 | 215 | -1959 | L | L |
| Year | Team | AB | HR | RBI | BA |
|---|---|---|---|---|---|
| 1981 | Minnesota Twins | 0 | 0 | 0 | 0.0000 |
| 1982 | Minnesota Twins | 0 | 0 | 0 | 0.0000 |
| 1983 | Minnesota Twins | 0 | 0 | 0 | 0.0000 |
| 1984 | Minnesota Twins | 0 | 0 | 0 | 0.0000 |
| 1985 | Montreal Expos | 0 | 0 | 0 | 0.0000 |
| 1987 | Baltimore Orioles | 0 | 0 | 0 | 0.0000 |
| Year | Team | W | L | G | SHO |
|---|---|---|---|---|---|
| 1981 | Minnesota Twins | 3 | 2 | 28 | 0 |
| 1982 | Minnesota Twins | 8 | 9 | 23 | 1 |
| 1983 | Minnesota Twins | 2 | 3 | 27 | 0 |
| 1984 | Minnesota Twins | 0 | 0 | 2 | 0 |
| 1985 | Montreal Expos | 0 | 2 | 20 | 0 |
| 1987 | Baltimore Orioles | 1 | 1 | 29 | 0 |