| Start Date | End Date | #Days | Status | MLB Team | Minor Team | 40-Man | Transaction Description |
| 2013-06-12 | Current | -- | Minors | Washington Nationals | Harrisburg (AA) | Yes | Optioned to Harrisburg (AA) |
| 2013-05-28 | 2013-06-12 | 16 | Active | Washington Nationals | Yes | Recalled from Harrisburg (AA) | |
| 2013-03-14 | 2013-05-28 | 76 | Minors | Washington Nationals | Harrisburg (AA) | Yes | Optioned to Harrisburg (AA) |
| 2013-03-07 | 2013-03-14 | 8 | Active | Washington Nationals | Yes | Signed to 1-year contract for 2013 ($0m) | |
| 2012-11-21 | 2013-03-07 | 107 | Active | Washington Nationals | Yes | Contract purchased from Minors | |
| 2012-10-08 | 2012-11-21 | 45 | Minors | Washington Nationals | Activated from DL | ||
| 2012-08-22 | 2012-10-08 | 48 | DL-7 | Washington Nationals | Potomac (A+) | DL-7 Injured | |
| 2012-06-09 | 2012-08-22 | 75 | Minors | Washington Nationals | Potomac (A+) |
| Date | Notes |
| 2009-06-21 | Signed by Nationals |
| Drafted: Selected by Washington Nationals in 12th round (352nd overall) of 2009 Amateur Draft (June-Reg Phase) | |
| *Did not sign* ... Selected by Houston Astros in 10th round (309th overall) of 2006 Amateur Draft (June-Reg Phase) | |