 |
|
|
| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Player | From-To | Avg | HR | RBI | W | L | SV | ERA | K |
|---|---|---|---|---|---|---|---|---|---|
| Larry O'Brien | 1971-1976 | .254 | 13 | 72 | 0 | 0 | 0 | 0.00 | 0 |
| Thomas O'Brien | 1970-1973 | .242 | 4 | 18 | 0 | 0 | 0 | 0.00 | 0 |
| Jack W O'Connor | 1978-1979 | .000 | 0 | 0 | 11 | 6 | 3 | 3.25 | 134 |
| William O'Connor | 1969-1969 | .326 | 7 | 46 | 0 | 0 | 0 | 0.00 | 0 |
| Joseph O'Malley | 1980-1981 | .277 | 6 | 47 | 0 | 0 | 0 | 0.00 | 0 |
| Denny O'Toole | 1968-1974 | .083 | 0 | 2 | 9 | 9 | 0 | 3.20 | 125 |
| Johnny Oates | 1970-1970 | .313 | 0 | 10 | 0 | 0 | 0 | 0.00 | 0 |
| Ken Oberkfell | 1976-1976 | .167 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0 |
| Jim Obradovich | 1968-1973 | .279 | 30 | 110 | 0 | 0 | 0 | 0.00 | 0 |
| Francisco Obregon | 1957-1957 | .167 | 1 | 2 | 0 | 0 | 1 | 5.63 | 5 |
| Mark Oestreich | 1979-1981 | .331 | 31 | 142 | 0 | 0 | 0 | 0.00 | 0 |
| Bob Ojeda | 1979-1979 | .000 | 0 | 0 | 12 | 7 | 2 | 3.75 | 89 |
| Len Okrie | 1942-1942 | .194 | 0 | 9 | 0 | 1 | 0 | 4.20 | 9 |
| Ed Olivares | 1959-1959 | .319 | 16 | 73 | 0 | 0 | 0 | 0.00 | 0 |
| Richard Oliver | 1978-1980 | .230 | 6 | 64 | 0 | 0 | 0 | 0.00 | 0 |
| Mike Olivo | 1964-1964 | .143 | 0 | 1 | 2 | 5 | 1 | 4.17 | 44 |
| Jim Ollom | 1964-1964 | .120 | 0 | 1 | 9 | 12 | 0 | 4.28 | 131 |
| Michael Ongarato | 1976-1980 | .252 | 26 | 158 | 0 | 0 | 0 | 0.00 | 0 |
| Ronald Opatkiewicz | 1969-1969 | .253 | 1 | 20 | 0 | 0 | 0 | 0.00 | 0 |
| Jose Oppenheimer | 1979-1979 | .299 | 4 | 42 | 0 | 0 | 0 | 0.00 | 0 |
| Michael Ornest | 1980-1980 | .214 | 3 | 13 | 0 | 0 | 0 | 0.00 | 0 |
| Juan Orona | 1980-1980 | .333 | 5 | 16 | 0 | 0 | 0 | 0.00 | 0 |
| Boyce Orosco | 1981-1981 | .000 | 0 | 0 | 0 | 0 | 0 | 3.60 | 3 |
| David Orr | 1975-1977 | .266 | 13 | 62 | 0 | 0 | 0 | 0.00 | 0 |
| John Orsino | 1958-1958 | .292 | 20 | 88 | 0 | 0 | 0 | 0.00 | 0 |
| Alex Ortiz | 1979-1979 | .227 | 5 | 42 | 0 | 0 | 0 | 0.00 | 0 |
| Jordan Ortiz | 1980-1980 | .000 | 0 | 0 | 3 | 0 | 4 | 4.50 | 14 |
| Leonardo Ortiz | 1979-1981 | .000 | 0 | 0 | 7 | 5 | 0 | 6.20 | 84 |
| Miguel Ortiz | 1979-1979 | .275 | 0 | 8 | 0 | 0 | 0 | 0.00 | 0 |
| Raul Ortiz | 1981-1981 | .000 | 0 | 0 | 6 | 5 | 0 | 3.91 | 102 |
| Player | From-To | Avg | HR | RBI | W | L | SV | ERA | K |
| Vicente Ortiz | 1978-1978 | .248 | 8 | 42 | 0 | 0 | 0 | 0.00 | 0 |
| Billy Ott | 1961-1961 | .307 | 7 | 75 | 0 | 0 | 0 | 0.00 | 0 |
| Ray Oyler | 1960-1961 | .261 | 10 | 95 | 0 | 0 | 0 | 0.00 | 0 |
