Personal Bests| Event | Result | Wind | Venue | Date |
|---|
| 60m ind. | 7.68 | | Lexington, KY (USA) | 29.01.2011 | | 100m | 11.97 | 0.0 | Auburn, AL (USA) | 24.03.2007 | | 200m | 23.48 | 0.0 | Cincinnati, OH (USA) | 05.04.2008 | | 200m ind. | 23.66 | | Bloomington, IN (USA) | 26.01.2008 | | 300m ind. | 37.60 | | Fayetteville, AR (USA) | 09.02.2007 | | 400m | 50.24 | | Indianapolis, IN (USA) | 23.06.2007 | | 400m ind. | 52.12 | | New York, NY (USA) | 26.01.2013 | | 4x400m | 3:18.54 | | National Stadium, Beijing (CHN) | 23.08.2008 | | 4x400m ind. | 3:28.63 | | Olimpiyskiy Stadion, Moskva (RUS) | 12.03.2006 |
| Season's BestsNo season's bests available. |
World RankingsNot ranked currently. | | Year | Result | Wind | Venue | Date |
|---|
| 2007 | 11.97 | 0.0 | Auburn, AL (USA) | 24.03.2007 |
| Year | Result | Wind | Venue | Date |
|---|
| 2002 | 24.68 | +1.1 | Louisville, KY (USA) | 10.05.2002 | | 2003 | 24.03 | +0.8 | Bloomington, IN (USA) | 19.07.2003 | | 2004 | 24.10 | +0.3 | Sacramento, CA (USA) | 30.05.2004 | | 2006 | 23.94 | +1.1 | Louisville, KY (USA) | 13.05.2006 | | 2007 | 24.01 | 0.0 | Auburn, AL (USA) | 24.03.2007 | | 2008 | 23.48 | 0.0 | Cincinnati, OH (USA) | 05.04.2008 | | 2010 | 24.31 | 0.0 | Cincinnati, OH (USA) | 20.03.2010 | | 2011 | 23.54 | +1.7 | Orlando, FL (USA) | 26.03.2011 | | 2012 | 23.51 | -0.3 | Icahn Stadium, New York, NY (USA) | 09.06.2012 | | 2013 | 23.79 | 0.0 | Cincinnati, OH (USA) | 30.03.2013 |
| Year | Result | Venue | Date |
|---|
| 2000 | 53.88 | New Orleans, LA (USA) | 12.05.2000 | | 2001 | 55.98 | Oxford (GBR) | 14.04.2001 | | 2002 | 53.30 | Louisville, KY (USA) | 11.05.2002 | | 2003 | 52.62 | Bloomington, IN (USA) | 11.05.2003 | | 2004 | 51.54 | Provo, UT (USA) | 25.06.2004 | | 2005 | 52.99 | Carson, CA (USA) | 23.06.2005 | | 2006 | 51.27 | Indianapolis, IN (USA) | 24.06.2006 | | 2007 | 50.24 | Indianapolis, IN (USA) | 23.06.2007 | | 2008 | 50.32 | Eugene, OR (USA) | 08.06.2008 | | 2010 | 52.29 | Drake Stadium, Des Moines, IA (USA) | 25.06.2010 | | 2011 | 51.71 | Genève (SUI) | 28.05.2011 | | 2012 | 51.93 | Hayward Field, Eugene, OR (USA) | 22.06.2012 | | 2013 | 51.58 | Burnaby (CAN) | 01.07.2013 |
| Year | Result | Venue | Date |
|---|
| 2011 | 2:14.20 | Cincinnati, OH (USA) | 19.03.2011 |
| Year | Result | Venue | Date |
|---|
| 2004 | 3:25.90 | Austin, TX (USA) | 02.04.2004 | | 2006 | 3:25.74 | Austin, TX (USA) | 08.04.2006 | | 2007 | 3:18.55 | Yanmar Stadium Nagai, Osaka (JPN) | 02.09.2007 | | 2008 | 3:18.54 | National Stadium, Beijing (CHN) | 23.08.2008 | | 2012 | 3:32.28 | Gainesville, FL (USA) | 07.04.2012 | | 2013 | 3:26.26 | Philadelphia, PA (USA) | 27.04.2013 |
|
