| Home | Teams and Players | Homerun Kings | Top Salaries | Top RBI | Hall of Fame |

| Name: | Pete O'Brien |
| Given name: | Peter James |
| Birth place: | Chicago, IL, USA |
| Birthday: | 6/16/1867 |
| Height: | 69 inches |
| Weight: | 165 lbs |
| Batting: | Right-handed |
| Throwing: | Right-handed |
| Age/Age at time of death: | 70 |
| Year | Team Name | Batting Statistics | Pitching Statistics | Fielding Statistics |
|---|---|---|---|---|
| 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 |
| 1890 | Chicago Colts | 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 |