| Start Date | End Date | #Days | Status | MLB Team | Minor Team | 40-Man | Transaction Description |
| 2013-04-08 | Current | -- | Minors | Texas Rangers | Frisco (AA) | Assigned to Frisco (AA) | |
| 2013-01-15 | 2013-04-08 | 84 | Minors | Texas Rangers | Signed to minor league contract | ||
| 2012-11-18 | 2013-01-15 | 59 | Free Agent | - | Declared free agency | ||
| 2012-08-24 | 2012-11-18 | 87 | Minors | Washington Nationals | Harrisburg (AA) | Assigned to Harrisburg (AA) | |
| 2012-08-21 | 2012-08-24 | 4 | Minors | Washington Nationals | Syracuse (AAA) | Assigned to Syracuse (AAA) | |
| 2012-07-28 | 2012-08-21 | 25 | Minors | Washington Nationals | Harrisburg (AA) | Activated from DL | |
| 2012-07-12 | 2012-07-28 | 17 | DL-7 | Washington Nationals | Harrisburg (AA) | DL-7 Injured | |
| 2012-06-14 | 2012-07-12 | 29 | Minors | Washington Nationals | Harrisburg (AA) |
| Date | Notes |
| 2012-03-28 | Signed by Nationals |
| 2010-10-15 | Traded by Giants to Royals |
| Drafted: Selected by San Francisco Giants in 17th round (506th overall) of 2006 Amateur Draft (June-Reg Phase) | |