Personal Bests| Event | Result | Wind | Venue | Date |
|---|
| 55m ind. | 6.33 | | Blacksburg, VA (USA) | 31.01.2004 | | 60m ind. | 6.68 | | Lynchburg, VA (USA) | 18.02.2006 | | 100m | 10.47 | +1.2 | Newport News, VA (USA) | 05.06.2004 | | 200m | 19.74 | +1.4 | Hayward Field, Eugene, OR (USA) | 08.07.2016 | | 200m ind. | 20.40 | | Fayetteville, AR (USA) | 12.02.2005 | | 300m | 31.23 | | Kingston (JAM) | 11.06.2016 | | 300m ind. | 31.94 | | Fayetteville, AR (USA) | 10.02.2006 | | 400m | 43.65 | | National Stadium, Beijing (CHN) | 26.08.2015 | | 400m ind. | 44.93 | | Fayetteville, AR (USA) | 11.02.2005 | | 500m ind. | 1:01.39 | | New York, NY (USA) | 11.02.2012 | | 4x100m | 38.66 | | Stadio Zecchini, Grosseto (ITA) | 18.07.2004 | | Sprint Medley 1000m | 1:46.68 | | Stockholm (SWE) | 25.07.2006 | | 4x400m | 2:55.39 | | National Stadium, Beijing (CHN) | 23.08.2008 | | 4x400m ind. | 3:03.24 | | Olimpiyskiy Stadion, Moskva (RUS) | 12.03.2006 |
| Season's BestsNo season's bests available. |
World RankingsNot ranked currently. | | Year | Result | Wind | Venue | Date |
|---|
| 2002 | 10.75 | +1.0 | Knoxville, TN (USA) | 05.08.2002 | | 2003 | 10.73 | | Newport (GBR) | 24.05.2003 | | 2004 | 10.47 | +1.2 | Newport News, VA (USA) | 05.06.2004 | | 2007 | 10.56 | -0.8 | Lynchburg, VA (USA) | 31.03.2007 | | 2020 | 12.44 | +1.7 | AP Ranch, Fort Worth, TX (USA) | 20.07.2020 | | 2021 | 10.53 | +1.9 | Olympia HS, Orlando, FL (USA) | 23.05.2021 |
| Year | Result | Wind | Venue | Date |
|---|
| 2002 | 21.85 | -0.7 | Knoxville, TN (USA) | 08.08.2002 | | 2003 | 21.33 | -0.9 | Miami, FL (USA) | 03.08.2003 | | 2004 | 20.69 | | Virginia Beach, VA (USA) | 01.05.2004 | | 2005 | 20.38 | +0.3 | Knoxville, TN (USA) | 16.04.2005 | | 2006 | 20.10 | +0.4 | Stade Olympique de la Pontaise, Lausanne (SUI) | 11.07.2006 | | 2007 | 19.98 | +1.4 | Carson, CA (USA) | 20.05.2007 | | 2008 | 20.08 | +0.8 | Doha (QAT) | 09.05.2008 | | 2009 | 20.07 | -0.5 | Carson, CA (USA) | 16.05.2009 | | 2011 | 20.13 | +0.2 | Stadio Guidobaldi, Rieti (ITA) | 10.09.2011 | | 2012 | 20.16 | +0.9 | St-Martin (FRA) | 05.05.2012 | | 2013 | 20.26 | +0.7 | George Town (CAY) | 08.05.2013 | | 2014 | 20.42 | +0.2 | Sydney (AUS) | 15.03.2014 | | 2016 | 19.74 | +1.4 | Hayward Field, Eugene, OR (USA) | 08.07.2016 | | 2017 | 20.27 | -0.4 | Shanghai Stadium, Shanghai (CHN) | 13.05.2017 | | 2018 | 20.48 | +0.3 | Gainesville, FL (USA) | 13.04.2018 | | 2019 | 20.51 | +0.6 | Montverde, FL (USA) | 08.06.2019 | | 2021 | 20.41 | +0.9 | Hayward Field, Eugene, OR (USA) | 26.06.2021 |
| Year | Result | Venue | Date |
|---|
| 2006 | 31.31 | Eugene, OR (USA) | 08.08.2006 | | 2009 | 31.30 | Eugene, OR (USA) | 07.06.2009 | | 2015 | 31.53 | Atlanta, GA (USA) | 01.08.2015 | | 2016 | 31.23 | Kingston (JAM) | 11.06.2016 | | 2020 | 53.25 | AP Ranch, Fort Worth, TX (USA) | 20.07.2020 |
| Year | Result | Venue | Date |
|---|
| 2003 | 47.90 | Richmond, VA (USA) | 31.05.2003 | | 2004 | 45.25 | Stadio Zecchini, Grosseto (ITA) | 15.07.2004 | | 2005 | 44.66 | Kingston (JAM) | 07.05.2005 | | 2006 | 44.14 | Gottlieb-Daimler Stadion, Stuttgart (GER) | 09.09.2006 | | 2007 | 43.96 | Yanmar Stadium Nagai, Osaka (JPN) | 31.08.2007 | | 2008 | 43.75 | National Stadium, Beijing (CHN) | 21.08.2008 | | 2009 | 44.06 | Olympiastadion, Berlin (GER) | 21.08.2009 | | 2011 | 44.35 | DS, Daegu (KOR) | 28.08.2011 | | 2012 | 44.12 | Hayward Field, Eugene, OR (USA) | 24.06.2012 | | 2013 | 43.74 | Luzhniki Stadion, Moskva (RUS) | 13.08.2013 | | 2014 | 43.92 | Stade Olympique de la Pontaise, Lausanne (SUI) | 03.07.2014 | | 2015 | 43.65 | National Stadium, Beijing (CHN) | 26.08.2015 | | 2016 | 43.85 | Estádio Olímpico, Rio de Janeiro (BRA) | 14.08.2016 | | 2017 | 44.78 | Suhaim bin Hamad Stadium, Doha (QAT) | 05.05.2017 | | 2019 | 45.82 | Bellinzona (SUI) | 01.09.2019 | | 2020 | 45.98 | Montverde Academy, Montverde, FL (USA) | 04.07.2020 | | 2021 | 45.45 | National Training Center, Clermont, FL (USA) | 30.05.2021 |
|
