Personal Bests| Event | Result | Venue | Date |
|---|
| 400m | 47.93 | Atlanta, GA (USA) | 19.05.2001 | | 500m ind. | 1:03.73 | Boston, MA (USA) | 26.01.2008 | | 600m ind. | 1:17.87 | Boston, MA (USA) | 05.02.2011 | | 800m | 1:45.74 | Baton Rouge, LA (USA) | 31.05.2002 | | 800m ind. | 1:47.56 | Karlsruhe (GER) | 29.01.2006 | | 1000m | 2:19.06 | New York, NY (USA) | 11.06.2005 | | 1000m ind. | 2:23.04 | Boston, MA (USA) | 07.02.2009 | | 1500m | 3:45.54 | Starkville, MS (USA) | 12.05.2002 | | 1500m ind. | 3:45.93 | New York, NY (USA) | 22.01.2011 | | Mile | 4:13.47 | Austin, TX (USA) | 03.04.2004 | | Mile ind. | 4:03.05 | New York, NY (USA) | 24.01.2009 | | 3000m ind. | 8:28.62 | Gainesville, FL (USA) | 17.01.2004 | | 4x400m | 3:10.28 | Mayagüez (PUR) | 17.07.2011 |
| Season's BestsNo season's bests available. |
World RankingsNot ranked currently. | | Year | Result | Venue | Date |
|---|
| 2001 | 47.93 | Atlanta, GA (USA) | 19.05.2001 | | 2004 | 48.74 | Gainesville, FL (USA) | 26.03.2004 | | 2006 | 48.02 | Gainesville, FL (USA) | 01.04.2006 | | 2015 | 49.35 | Gainesville, FL (USA) | 03.04.2015 |
| Year | Result | Venue | Date |
|---|
| 2000 | 1:50.30 | Amherst, MA (USA) | 29.07.2000 | | 2001 | 1:46.58 | Columbia, SC (USA) | 13.05.2001 | | 2002 | 1:45.74 | Baton Rouge, LA (USA) | 31.05.2002 | | 2003 | 1:47.05 | Sacramento, CA (USA) | 14.06.2003 | | 2004 | 1:46.76 | Gainesville, FL (USA) | 02.05.2004 | | 2005 | 1:46.25 | Heusden-Zolder (BEL) | 23.07.2005 | | 2006 | 1:47.60 | Fortaleza (BRA) | 17.05.2006 | | 2007 | 1:48.16 | National Stadium, Kingston (JAM) | 05.05.2007 | | 2008 | 1:47.33 | Halifax (CAN) | 11.07.2008 | | 2009 | 1:45.87 | Olympiastadion, Berlin (GER) | 21.08.2009 | | 2010 | 1:47.60 | Los Angeles, CA (USA) | 22.05.2010 | | 2011 | 1:47.72 | Halifax (CAN) | 10.07.2011 | | 2012 | 1:47.34 | Ninove (BEL) | 21.07.2012 | | 2013 | 1:49.39 | Kortrijk (BEL) | 14.07.2013 | | 2014 | 1:50.88 | West Chester, PA (USA) | 30.05.2014 | | 2015 | 1:49.38 | Guelph (CAN) | 30.05.2015 | | 2016 | 1:49.98 | Nassau (BAH) | 10.07.2016 |
| Year | Result | Venue | Date |
|---|
| 2005 | 2:19.06 | New York, NY (USA) | 11.06.2005 | | 2006 | 2:19.90 | Mangueirão, Belém (BRA) | 21.05.2006 | | 2015 | 2:26.61 | Daytona Beach, FL (USA) | 21.02.2015 |
| Year | Result | Venue | Date |
|---|
| 2001 | 3:48.70 | Boston, MA (USA) | 03.07.2001 | | 2002 | 3:45.54 | Starkville, MS (USA) | 12.05.2002 | | 2003 | 3:45.62 | Knoxville, TN (USA) | 18.05.2003 | | 2004 | 3:48.12 | Oxford (GBR) | 15.05.2004 | | 2005 | 3:47.29 | Gainesville, FL (USA) | 24.03.2005 | | 2009 | 3:45.96 | Gent (BEL) | 21.07.2009 | | 2011 | 3:47.34 | Gainesville, FL (USA) | 01.04.2011 | | 2012 | 3:51.51 | Amiens (FRA) | 30.06.2012 | | 2013 | 3:58.99 | Jacksonville, FL (USA) | 02.03.2013 |
| Year | Result | Venue | Date |
|---|
| 2004 | 4:13.47 | Austin, TX (USA) | 03.04.2004 |
|
