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| Name | Dan O'Leary |
| Given Name | Daniel |
| Birth Date | 1856-10-22 |
| Birth City | Detroit, MI |
| Height | 5'10" |
| Weight | 165 lbs. |
| Batting Hand | Left |
| Alive | No |
| Age | 65 |
| Year | Team | Hits | At Bats | Home Runs | Runs Batted | Batting Average | Wins | Losses | # of Pitching Games | Strikeouts | # of Shutouts |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1879 | Providence Grays | 3 | 7 | 0 | 2 | 0.428571 | |||||
| 1880 | Boston Red Caps | 3 | 12 | 0 | 1 | 0.25 | |||||
| 1881 | Detroit Wolverines | 0 | 8 | 0 | 0 | 0 | |||||
| 1882 | Worcester Ruby Legs | 4 | 22 | 0 | 2 | 0.181818 | |||||
| 1884 | Cincinnati Outlaw Reds | 34 | 132 | 1 | 0 | 0.257576 |
| Year | Position | Errors | Double Plays | Assists |
|---|---|---|---|---|
| 1879 | Outfielder | 0 | 0 | 0 |
| 1880 | Outfielder | 0 | 0 | 0 |
| 1881 | Outfielder | 2 | 0 | 0 |
| 1882 | Outfielder | 2 | 0 | 0 |
| 1884 | Outfielder | 9 | 0 | 8 |