| Player History |
| 11/01/2002 | Pac-10 Conference (NCAA) All-Star SS |
| 11/01/2002 | Freshman 2nd team All-America SS (NCAA) |
| 11/01/2003 | Pac-10 Conference (NCAA) Player of the Year |
| 11/01/2003 | 2nd team College All-American SS (NCAA) |
| 06/07/2004 | Selected in the amateur draft (Round 2, 65 overall) by the Boston Red Sox. |
| 11/01/2004 | Pac-10 Conference (NCAA) All-Star IF |
| 11/01/2004 | 1st team College All-American SS (NCAA) |
| 11/01/2005 | Eastern League (AA) All-Star 2B |
| 11/01/2006 | International League (AAA) All-Star Utility |
| 06/27/2008 | Hits for the CYCLE, going 6-6 against the Houston Astros, with 8 RBI and 4 runs scored. |
| 06/27/2008 | Goes 6-6 against the Houston Astros, with 1 2B, 1 3B, 1 HR, 8 RBI and 4 R. |
| 06/30/2008 | Wins the BLB AL Player of the Week Award. |
| 07/11/2008 | Injured (strained hamstring muscle), day-to-day for 2 weeks. |
| 11/16/2008 | Received a 1-year contract worth a total of $390,000 through automatic renewal. |
| 01/01/2009 | OSA scouting updated ratings (potential): Contact: 7 (7); Power: 3 (3); Eye: 5 (5). |
| 06/30/2009 | Injured (sprained ankle), day-to-day for 2 days. |
| 07/15/2009 | Goes 0-4 against the Baltimore Orioles, ending his hitting streak at 24 games. |
| 11/22/2009 | Received a 1-year contract worth a total of $3,104,000 through arbitration. |
| 01/01/2010 | OSA scouting updated ratings (potential): Contact: 7 (7); Power: 3 (3); Eye: 5 (5). |
| 11/18/2010 | Received a 1-year contract worth a total of $2,800,000 through arbitration. |
| 01/01/2011 | OSA scouting updated ratings (potential): Contact: 7 (7); Power: 3 (3); Eye: 5 (5). |
| 06/01/2011 | Injured (ruptured tendon (finger)), out for 3-4 months. |
| 11/07/2011 | Released by the Boston Red Sox. |
| 12/31/2011 | Signed a 4-year contract worth a total of $19,360,000 with the Washington Nationals organization. |
| 01/01/2012 | OSA scouting updated ratings (potential): Contact: 7 (7); Power: 3 (3); Eye: 5 (5). |
| 05/28/2012 | Was traded by the Washington Nationals to the Milwaukee Brewers, along with 3B R. Braun, SP H. Bailey, in exchange for LF C. Blackmon, CF C. Gindl, 1B S. Chapman, 1B E. Hosmer. |
| 01/01/2013 | OSA scouting updated ratings (potential): Contact: 6 (6); Power: 2 (2); Eye: 5 (5). |
| 03/10/2013 | Injured (fractured hand), out for 6-7 weeks. |