| Name: | Peter O'Brien |
| Given name: | Peter Robert |
| Birth place: | Hialeah, FL, USA |
| Birthday: | 7/15/1990 |
| Height: | 76 inches |
| Weight: | 235 lbs |
| Batting: | Right-handed |
| Throwing: | Right-handed |
| Age/Age at time of death: | 35 |
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| Name: | Peter O'Brien |
| Given name: | Peter Robert |
| Birth place: | Hialeah, FL, USA |
| Birthday: | 7/15/1990 |
| Height: | 76 inches |
| Weight: | 235 lbs |
| Batting: | Right-handed |
| Throwing: | Right-handed |
| Age/Age at time of death: | 35 |
| Year | Team Name | Batting Statistics | Pitching Statistics | Fielding Statistics |
|---|---|---|---|---|
| 2015 | Arizona Diamondbacks | Hits: 0 At Bats: 1 HR: 0 RBI: 0 | Wins: 1 Losses: 1 Total Games: 33 Strikeouts: 35 Shutouts: 0 | Position: P Errors: 1 Double Plays: 0 Assists: 1 |
| 2016 | Arizona Diamondbacks | Hits: 0 At Bats: 1 HR: 0 RBI: 0 | Wins: 1 Losses: 4 Total Games: 39 Strikeouts: 29 Shutouts: 0 | Position: P Errors: 0 Double Plays: 1 Assists: 3 |