| Name | Pos | Team | Age | DOB | POB | Nationality | Bats | Throws | Height | Weight | Salary |
|---|
| O'Brien, Jonathon | SP | Bishop Gorman HS Balbasaurs | 17 | 04/29/2012 | Nashua | USA | Right | Right | 6' 1" | 165 lbs | - | | O'Keefe, Melvin | RF | Indianapolis HS Rifles | 17 | 09/16/2012 | New York | USA | Right | Right | 6' 0" | 180 lbs | - | | O'Larly, Ray | LF | Maris School Mariners | 16 | 10/12/2013 | South Pasadena | USA | Right | Right | 6' 0" | 170 lbs | - | | O'Neal, David | RF | Dublin Jerome HS Celtics | 17 | 05/26/2012 | Shelton | USA | Left | Left | 6' 3" | 185 lbs | - | | O'Quinn, Jason | RP | H.H. Dow HS Chargers | 16 | 06/06/2013 | Bellevue | USA | Right | Left | 6' 0" | 165 lbs | - | | O'Quinn, Ken | 3B | Bishop Verot HS | 17 | 12/12/2012 | Levittown | USA | Right | Right | 6' 0" | 170 lbs | - | | O'Rourke, Eric | RP | Indianapolis HS Rifles | 15 | 01/17/2014 | Greensboro | USA | Right | Right | 6' 3" | 175 lbs | - | | O'Savage, John | 1B | Huntsville HS Wasps | 16 | 04/09/2013 | New York | USA | Right | Right | 6' 1" | 195 lbs | - | | O'Toole, Robby | CL | Brookline HS Warriors | 16 | 09/24/2013 | Los Angeles | USA | Right | Right | 6' 0" | 165 lbs | - | | Ocampo, Rubén | SP | Fort Worth HS Turkeys | 17 | 10/18/2012 | Mercedes | USA | Right | Right | 5' 11" | 170 lbs | - | | Ochoa, Rob | SP | Spanish Fork HS | 15 | 06/26/2014 | Lacoochee | USA | Switch | Right | 5' 11" | 160 lbs | - | | Oliva, Reynaldo | 2B | Shelby HS Rockets | 15 | 01/11/2014 | Los Banos | USA | Right | Right | 6' 1" | 170 lbs | - | | Oliver, River | CF | Bishop Gorman HS Balbasaurs | 16 | 01/10/2013 | West Orange | USA | Right | Right | 5' 9" | 155 lbs | - | | Olson, Larry | 2B | Billings West HS Golden Bears | 17 | 02/15/2012 | Enid | USA | Right | Right | 6' 0" | 175 lbs | - | | Ordóñez, David | SS | Shelby HS Rockets | 15 | 06/06/2014 | Northbrook | USA | Right | Right | 6' 1" | 170 lbs | - | | Ortíz, Vicente | 3B | Jeffersonville-Youngsville Central HS Trojans | 17 | 12/24/2012 | Westborough | USA | Right | Right | 6' 2" | 195 lbs | - | | Ortíz, Víctor | C | Butler HS Golden Tornado | 16 | 05/23/2013 | Mokena | USA | Switch | Right | 6' 0" | 185 lbs | - | | Owen, Ronald | RP | Tulsa HS As | 15 | 02/08/2014 | Ames | USA | Switch | Right | 6' 3" | 175 lbs | - | | Owens, Henry | SP | Mountain Pointe HS | 17 | 07/29/2012 | Concord | USA | Right | Right | 6' 1" | 175 lbs | - | | Owens, Ray | RP | Indianapolis HS Rifles | 15 | 04/25/2014 | Lansing | USA | Right | Right | 6' 0" | 160 lbs | - |
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