 |
|
|
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Raymond O'Neill | 1971-1971 | 5 | 9 | .357 | 6.28 | 18 | 18 | 4 | 0 | 0 | 109.0 | 130 | 76 | 16 | 74 | 55 |
| Don O'Riley | 1969-1971 | 29 | 31 | .483 | 4.24 | 72 | 70 | 27 | 2 | 0 | 518.1 | 581 | 244 | 42 | 222 | 247 |
| Evan O'Rourke | 1976-1978 | 19 | 28 | .404 | 4.05 | 85 | 57 | 15 | 1 | 6 | 480.1 | 424 | 216 | 47 | 217 | 280 |
| Francisco Obregon | 1960-1968 | 0 | 0 | .000 | 5.57 | 8 | 0 | 0 | 0 | 2 | 21.0 | 27 | 13 | 5 | 5 | 13 |
| Dave Odom | 1944-1945 | 2 | 4 | .333 | 5.93 | 25 | 12 | 2 | 0 | 3 | 88.0 | 87 | 58 | 7 | 67 | 45 |
| Maurice Ogier | 1970-1970 | 0 | 0 | .000 | 5.06 | 2 | 0 | 0 | 0 | 0 | 5.1 | 7 | 3 | 1 | 5 | 2 |
| Ron Oglesby | 1972-1974 | 19 | 12 | .613 | 4.07 | 57 | 29 | 0 | 0 | 2 | 254.0 | 245 | 115 | 16 | 82 | 155 |
| Bob Oliver | 1968-1969 | 0 | 0 | .000 | 9.00 | 2 | 0 | 0 | 0 | 0 | 2.0 | 2 | 2 | 0 | 4 | 0 |
| Dave Oliver | 1974-1978 | 0 | 0 | .000 | 0.00 | 1 | 0 | 0 | 0 | 0 | 1.2 | 1 | 0 | 0 | 1 | 0 |
| Chi-Chi Olivo | 1955-1963 | 17 | 14 | .548 | 4.52 | 60 | 26 | 14 | 2 | 5 | 259.0 | 302 | 130 | 26 | 81 | 181 |
| Mike Olivo | 1969-1970 | 8 | 19 | .296 | 5.30 | 40 | 35 | 4 | 0 | 0 | 234.1 | 272 | 138 | 27 | 95 | 97 |
| Jim Ollom | 1965-1969 | 24 | 21 | .533 | 4.29 | 68 | 54 | 21 | 2 | 2 | 382.0 | 441 | 182 | 29 | 119 | 214 |
| Lew Olsen | 1976-1978 | 22 | 18 | .550 | 4.04 | 88 | 35 | 10 | 3 | 7 | 329.2 | 290 | 148 | 45 | 149 | 184 |
| Vern Olsen | 1947-1947 | 0 | 0 | .000 | 9.00 | 2 | 0 | 0 | 0 | 0 | 4.0 | 8 | 4 | 1 | 3 | 2 |
| Dean Olson | 1977-1977 | 0 | 1 | .000 | 13.50 | 2 | 0 | 0 | 0 | 0 | 4.0 | 8 | 6 | 3 | 3 | 5 |
| Joe Orengo | 1943-1943 | 0 | 0 | .000 | 5.14 | 2 | 1 | 0 | 0 | 0 | 7.0 | 9 | 4 | 1 | 5 | 4 |
| Edward Orick | 1980-1980 | 4 | 3 | .571 | 4.63 | 15 | 8 | 1 | 0 | 0 | 72.0 | 74 | 37 | 8 | 33 | 43 |
| Jesse Orosco | 1979-1980 | 4 | 2 | .667 | 4.50 | 30 | 0 | 0 | 0 | 10 | 34.0 | 36 | 17 | 3 | 16 | 19 |
| Marcos Ortega | 1975-1976 | 9 | 3 | .750 | 1.93 | 16 | 16 | 1 | 0 | 0 | 112.0 | 79 | 24 | 2 | 19 | 92 |
| Nelson Ortiz | 1978-1978 | 0 | 0 | .000 | 3.00 | 2 | 0 | 0 | 0 | 0 | 3.0 | 3 | 1 | 0 | 2 | 3 |
| Ozzie Osborn | 1970-1973 | 15 | 23 | .395 | 4.79 | 59 | 48 | 8 | 1 | 1 | 363.0 | 430 | 193 | 31 | 160 | 164 |
| Bobo Osborne | 1957-1969 | 1 | 0 | 1.000 | 4.63 | 12 | 0 | 0 | 0 | 0 | 35.0 | 37 | 18 | 0 | 13 | 6 |
| Darrell Osteen | 1970-1970 | 8 | 2 | .800 | 3.98 | 14 | 14 | 1 | 1 | 0 | 97.1 | 96 | 43 | 11 | 44 | 58 |
| Bob Owchinko | 1977-1978 | 5 | 1 | .833 | 2.44 | 35 | 0 | 0 | 0 | 5 | 70.0 | 63 | 19 | 2 | 26 | 33 |
| Jim Owens | 1966-1966 | 0 | 0 | .000 | 9.00 | 6 | 0 | 0 | 0 | 1 | 8.0 | 14 | 8 | 1 | 5 | 5 |
| John Owens | 1972-1977 | 0 | 1 | .000 | 4.91 | 3 | 0 | 0 | 0 | 0 | 3.2 | 6 | 2 | 0 | 5 | 0 |
