| Name: | Billy O'Brien |
| Given name: | William Smith |
| Birth place: | Albany, NY, USA |
| Birthday: | 3/14/1860 |
| Height: | 72 inches |
| Weight: | 185 lbs |
| Batting: | Right-handed |
| Throwing: | Right-handed |
| Age/Age at time of death: | 51 |
| Home | Teams and Players | Homerun Kings | Top Salaries | Top RBI | Hall of Fame |
| Name: | Billy O'Brien |
| Given name: | William Smith |
| Birth place: | Albany, NY, USA |
| Birthday: | 3/14/1860 |
| Height: | 72 inches |
| Weight: | 185 lbs |
| Batting: | Right-handed |
| Throwing: | Right-handed |
| Age/Age at time of death: | 51 |
| Year | Team Name | Batting Statistics | Pitching Statistics | Fielding Statistics |
|---|---|---|---|---|
| 1884 | Kansas City Cowboys | Hits: 10 At Bats: 52 HR: 0 RBI: 2 | Wins: 1 Losses: 0 Total Games: 1 Strikeouts: 2 Shutouts: 0 | Position: 3B Errors: 10 Double Plays: 2 Assists: 15 |
| 1884 | St. Paul White Caps | Hits: 10 At Bats: 52 HR: 0 RBI: 2 | Wins: 1 Losses: 0 Total Games: 1 Strikeouts: 2 Shutouts: 0 | Position: 3B Errors: 10 Double Plays: 2 Assists: 15 |
| 1887 | Washington Nationals | Hits: 128 At Bats: 463 HR: 4 RBI: 77 | Wins: 1 Losses: 0 Total Games: 2 Strikeouts: 1 Shutouts: 0 | Position: 3B Errors: 0 Double Plays: 1 Assists: 7 |
| 1888 | Washington Nationals | Hits: 75 At Bats: 364 HR: 1 RBI: 48 | Wins: 0 Losses: 2 Total Games: 2 Strikeouts: 2 Shutouts: 0 | Position: 3B Errors: 20 Double Plays: 9 Assists: 103 |
| 1889 | Washington Nationals | Hits: 43 At Bats: 186 HR: 0 RBI: 18 | Wins: 0 Losses: 1 Total Games: 5 Strikeouts: 8 Shutouts: 0 | Position: 2B Errors: 8 Double Plays: 4 Assists: 28 |
| 1890 | Brooklyn Gladiators | Hits: 1 At Bats: 7 HR: 0 RBI: 1 | Wins: 0 Losses: 2 Total Games: 3 Strikeouts: 1 Shutouts: 0 | Position: P Errors: 0 Double Plays: 0 Assists: 4 |