| Home | Teams and Players | Homerun Kings | Top Salaries | Most Runs Batted In | Hall of Fame |
| Name | Jack Brennan |
| Given Name | Jack |
| Birth Date | 1863-9-15 |
| Birth City | St. Louis, MO |
| Height | 0'0" |
| Weight | 155 lbs. |
| Alive | No |
| Age | 50 |
| Year | Team | Hits | At Bats | Home Runs | Runs Batted | Batting Average | Wins | Losses | # of Pitching Games | Strikeouts | # of Shutouts |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1884 | St. Louis Maroons | 50 | 231 | 0 | 0 | 0.21645 | |||||
| 1885 | St. Louis Maroons | 1 | 10 | 0 | 1 | 0.1 | |||||
| 1888 | Kansas City Cowboys | 20 | 118 | 0 | 6 | 0.169492 | |||||
| 1889 | Philadelphia Athletics | 25 | 113 | 0 | 15 | 0.221239 | |||||
| 1890 | Cleveland Infants | 59 | 233 | 0 | 26 | 0.253219 |
| Year | Position | Errors | Double Plays | Assists |
|---|---|---|---|---|
| 1884 | 3rd Base | 11 | 1 | 15 |
| 1884 | Catcher | 27 | 2 | 74 |
| 1884 | Outfielder | 1 | 1 | 2 |
| 1884 | Shortstop | 1 | 0 | 1 |
| 1885 | 3rd Base | 2 | 0 | 1 |
| 1885 | Outfielder | 1 | 0 | 0 |
| 1888 | 3rd Base | 7 | 1 | 13 |
| 1888 | Catcher | 20 | 4 | 49 |
| 1888 | Outfielder | 0 | 0 | 0 |
| 1889 | 2nd Base | 6 | 2 | 22 |
| 1889 | 3rd Base | 6 | 0 | 12 |
| 1889 | Catcher | 10 | 2 | 18 |
| 1889 | Outfielder | 0 | 1 | 3 |
| 1890 | 3rd Base | 8 | 1 | 24 |
| 1890 | Catcher | 34 | 6 | 49 |
| 1890 | Outfielder | 5 | 1 | 4 |