 |
|
|
| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Player | From-To | W | L | Pct | ERA | G | GS | CG | SHO | SV | IP | H | ER | HR | BB | SO |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Aaron O'Day | 2018-2018 | 0 | 2 | .000 | 4.79 | 4 | 4 | 0 | 0 | 0 | 20.2 | 16 | 11 | 1 | 17 | 19 |
| John O'Day | 2012-2013 | 1 | 10 | .091 | 6.10 | 22 | 22 | 0 | 0 | 0 | 100.1 | 114 | 68 | 10 | 87 | 98 |
| Bryan O'Halloran | 2020-2021 | 4 | 5 | .444 | 5.51 | 39 | 14 | 0 | 0 | 3 | 80.0 | 92 | 49 | 7 | 56 | 70 |
| Chris O'Reilly | 2020-2020 | 0 | 0 | .000 | 2.57 | 6 | 0 | 0 | 0 | 0 | 7.0 | 9 | 2 | 1 | 6 | 8 |
| Dwayne Ockey | 2019-2019 | 0 | 0 | .000 | 11.57 | 1 | 0 | 0 | 0 | 0 | 2.1 | 4 | 3 | 1 | 0 | 3 |
| Jefferson Olacio | 2015-2015 | 0 | 0 | .000 | 0.00 | 1 | 0 | 0 | 0 | 1 | 3.0 | 2 | 0 | 0 | 0 | 3 |
| Jason Olbryc | 2019-2021 | 0 | 0 | .000 | 5.14 | 5 | 0 | 0 | 0 | 1 | 7.0 | 7 | 4 | 1 | 2 | 11 |
| José Olivo | 2016-2018 | 3 | 11 | .214 | 6.24 | 31 | 13 | 3 | 0 | 1 | 106.2 | 117 | 74 | 14 | 68 | 103 |
| Cristóbal Orozco | 2022-2023 | 2 | 1 | .667 | 5.86 | 25 | 0 | 0 | 0 | 1 | 27.2 | 35 | 18 | 1 | 28 | 22 |
| José Ortega | 2018-2018 | 1 | 1 | .500 | 7.41 | 12 | 0 | 0 | 0 | 0 | 17.0 | 21 | 14 | 3 | 14 | 17 |
| Lawrence Ortíz | 2016-2016 | 2 | 0 | 1.000 | 1.74 | 12 | 0 | 0 | 0 | 1 | 10.1 | 5 | 2 | 1 | 4 | 11 |
| Kyle Ostrowski | 2020-2020 | 1 | 2 | .333 | 3.73 | 19 | 0 | 0 | 0 | 0 | 31.1 | 26 | 13 | 2 | 16 | 34 |
| Tyson Oswalt | 2017-2017 | 4 | 4 | .500 | 4.66 | 14 | 14 | 0 | 0 | 0 | 67.2 | 73 | 35 | 2 | 39 | 87 |
| Matt Ow-Yang | 2021-2021 | 0 | 0 | .000 | 0.00 | 3 | 0 | 0 | 0 | 0 | 6.1 | 7 | 0 | 0 | 4 | 6 |
| Bryan Owen | 2019-2019 | 1 | 0 | 1.000 | 1.42 | 2 | 2 | 0 | 0 | 0 | 12.2 | 10 | 2 | 0 | 7 | 15 |
| Channing O’Donnell | 2023-2023 | 3 | 3 | .500 | 5.72 | 12 | 12 | 0 | 0 | 0 | 61.1 | 69 | 39 | 8 | 29 | 57 |
