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|
| Name | Pos | Team | Age | DOB | POB | Nationality | Bats | Throws | Height | Weight | Salary |
|---|---|---|---|---|---|---|---|---|---|---|---|
| O'Day, Rickey | RP | Hamilton Coyotes | 30 | 12/08/2011 | East Lake | USA | Left | Right | 6' 5" | 240 lbs | $280,000 |
| O'Halloran, Bill | C | Ellenburg Fighting Dachsunds | 29 | 07/21/2012 | Raleigh | USA | Left | Right | 6' 1" | 235 lbs | - |
| O'Neal, Lawrence | 1B | Milton Dogfish Head | 27 | 08/09/2014 | Bensenville | USA | Right | Right | 6' 2" | 220 lbs | - |
| O'Neal, Tim | LF | Calgary Lynx | 34 | 09/10/2007 | Kansas City | USA | Left | Left | 6' 3" | 220 lbs | $575,000 |
| O'Quinlevan, Dana | C | Pennsauken Flyers | 21 | 04/03/2020 | Vallejo | USA | Right | Right | 6' 0" | 195 lbs | - |
| O'Reilly, John | RP | Calgary Lynx | 25 | 04/09/2016 | Ft. Worth | USA | Right | Right | 6' 1" | 200 lbs | - |
| O'Toole, Ricky | RP | Milton Dogfish Head | 35 | 11/22/2006 | Detroit | USA | Right | Right | 6' 0" | 195 lbs | - |
| Oliva, Richello | 3B | Monongahela Monsters | 28 | 06/19/2013 | Manila | PHI | Right | Right | 6' 0" | 200 lbs | - |
| Oort, Anthon | RF | Calgary Lynx | 28 | 11/04/2013 | Nieuw Amsterdam | SUR | Right | Right | 6' 2" | 210 lbs | - |
| Opsteegh, Falco | RF | Salt Lake City Buzz | 27 | 06/30/2014 | Willemstad | CUR | Right | Right | 6' 0" | 200 lbs | - |
| Oram, Dylan | SS | Hamilton Coyotes | 28 | 12/16/2013 | Corozal | BLZ | Right | Right | 6' 5" | 210 lbs | - |
| Orlovsky, Sasha | CF | Pennsauken Flyers | 27 | 06/29/2014 | Sulphur | USA | Right | Right | 6' 2" | 200 lbs | - |
| Ortíz, Francisco | SS | Austin Black Mambas | 26 | 11/25/2015 | Batan | CRC | Right | Right | 6' 2" | 200 lbs | - |
| Ortíz, Jorge | RF | Hartford Pride | 28 | 05/17/2013 | La Victoria | VEN | Left | Left | 6' 4" | 225 lbs | - |
| Osiman, Bungay | CL | Austin Black Mambas | 20 | 01/01/2021 | Manila | PHI | Left | Right | 6' 8" | 215 lbs | - |
| Oskamp, Carel | CF | Hartford Pride | 29 | 01/10/2012 | Cole Bay | SIM | Left | Left | 6' 1" | 205 lbs | - |
| Otani, Shohei | 1B | Hartford Pride | 30 | 01/16/2011 | Iwate | JPN | Left | Left | 6' 0" | 195 lbs | - |
