Personal Bests| Event | Result | Wind | Venue | Date |
|---|
| 55m ind. | 6.82 | | Gainesville, FL (USA) | 01.03.2003 | | 55m ind. | 6.82 | | Columbia, SC (USA) | 22.02.2003 | | 60m ind. | 7.14 | | Albuquerque, NM (USA) | 28.02.2010 | | 100m | 11.02 | +0.8 | Rio de Janeiro (BRA) | 24.07.2007 | | 200m | 22.73 | +0.4 | Indianapolis, IN (USA) | 23.06.2007 | | 200m ind. | 23.06 | | Fayetteville, AR (USA) | 14.03.2003 | | 200m ind. | 23.06 | | Fayetteville, AR (USA) | 10.03.2000 | | 400m | 50.63 | | Columbia, SC (USA) | 13.05.2001 | | 400m ind. | 51.92 | | Fayetteville, AR (USA) | 14.03.2003 | | 4x100m | 41.98 | | Yanmar Stadium Nagai, Osaka (JPN) | 01.09.2007 | | 4x200m | 1:31.01 | | Philadelphia, PA (USA) | 29.04.2000 | | 4x400m | 3:21.97 | | Commonwealth Stadium, Edmonton (CAN) | 11.08.2001 | | 4x400m ind. | 3:28.25 | | Fayetteville, AR (USA) | 15.03.2003 |
| Season's BestsNo season's bests available. |
World RankingsNot ranked currently. | | Year | Result | Wind | Venue | Date |
|---|
| 2010 | 10.46 | +1.5 | Mestský Stadion, Ostrava (CZE) | 27.05.2010 |
| Year | Result | Wind | Venue | Date |
|---|
| 1999 | 11.67 | -0.8 | Clemson, SC (USA) | 03.04.1999 | | 2006 | 11.27 | -0.9 | Indianapolis, IN (USA) | 23.06.2006 | | 2007 | 11.02 | +0.8 | Rio de Janeiro (BRA) | 24.07.2007 | | 2008 | 11.29 | +0.7 | Eugene, OR (USA) | 27.06.2008 | | 2010 | 11.17 | +0.9 | Bislett Stadion, Oslo (NOR) | 04.06.2010 | | 2011 | 11.09 | +1.6 | Hayward Field, Eugene, OR (USA) | 23.06.2011 | | 2012 | 11.13 | +0.7 | Suhaim bin Hamad Stadium, Doha (QAT) | 11.05.2012 | | 2013 | 11.15 | +1.7 | Mangueirão, Belém (BRA) | 12.05.2013 | | 2014 | 11.29 | +1.4 | Los Angeles, CA (USA) | 07.06.2014 | | 2015 | 11.17 | +1.4 | Walnut, CA (USA) | 18.04.2015 | | 2016 | 11.10 | +1.7 | Walnut, CA (USA) | 16.04.2016 | | 2017 | 11.16 | +0.7 | Torrance, CA (USA) | 15.04.2017 | | 2018 | 11.37 | +1.7 | Montverde, FL (USA) | 09.06.2018 | | 2019 | 11.73 | -1.9 | Drake Stadium, Des Moines, IA (USA) | 25.07.2019 |
| Year | Result | Wind | Venue | Date |
|---|
| 1998 | 24.07 | 0.0 | Montclair, NJ (USA) | 16.05.1998 | | 1999 | 23.05 | 0.0 | Athens, GA (USA) | 16.05.1999 | | 2000 | 22.98 | -0.5 | Chapel Hill, NC (USA) | 18.06.2000 | | 2001 | 23.21 | +0.4 | Columbia, SC (USA) | 13.05.2001 | | 2003 | 23.46 | -0.5 | Knoxville, TN (USA) | 11.04.2003 | | 2006 | 23.42 | +1.4 | Oslo (NOR) | 02.06.2006 | | 2007 | 22.73 | +0.4 | Indianapolis, IN (USA) | 23.06.2007 | | 2008 | 23.04 | 0.0 | Eugene, OR (USA) | 05.07.2008 | | 2010 | 23.10 | +2.0 | Haldensleben (GER) | 22.08.2010 | | 2011 | 23.41 | -0.2 | Sydney (AUS) | 19.03.2011 | | 2012 | 22.96 | -0.3 | Icahn Stadium, New York, NY (USA) | 09.06.2012 | | 2013 | 23.62 | +1.4 | Irvine, CA (USA) | 28.04.2013 | | 2014 | 23.44 | +0.5 | George Town (CAY) | 07.05.2014 | | 2015 | 23.21 | +1.4 | Edmonton (CAN) | 12.07.2015 |
| Year | Result | Venue | Date |
|---|
| 1998 | 52.56 | Raleigh, NC (USA) | 20.06.1998 | | 1999 | 51.03 | Palma de Mallorca (ESP) | 12.07.1999 | | 2000 | 50.98 | Baton Rouge, LA (USA) | 14.05.2000 | | 2001 | 50.63 | Columbia, SC (USA) | 13.05.2001 | | 2003 | 52.43 | Gainesville, FL (USA) | 28.03.2003 | | 2012 | 52.32 | Walnut, CA (USA) | 21.04.2012 | | 2013 | 51.82 | Claremont, CA (USA) | 13.04.2013 | | 2015 | 53.13 | Pasadena, CA (USA) | 27.03.2015 | | 2017 | 52.00 | Los Angeles, CA (USA) | 08.04.2017 |
| Year | Result | Venue | Date |
|---|
| 2007 | 41.98 | Yanmar Stadium Nagai, Osaka (JPN) | 01.09.2007 | | 2008 | 42.57 | Philadelphia, PA (USA) | 26.04.2008 | | 2010 | 42.74 | Philadelphia, PA (USA) | 24.04.2010 | | 2011 | 42.64 | Philadelphia, PA (USA) | 30.04.2011 | | 2012 | 42.51 | Stade Olympique de la Pontaise, Lausanne (SUI) | 23.08.2012 | | 2013 | 44.31 | Walnut, CA (USA) | 20.04.2013 | | 2016 | 43.71 | Philadelphia, PA (USA) | 30.04.2016 | | 2017 | 42.90 | Philadelphia, PA (USA) | 29.04.2017 | | 2018 | 44.91 | Torrance, CA (USA) | 21.04.2018 |
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