Personal Bests| Event | Result | Wind | Venue | Date |
|---|
| 200m | 21.28 | +1.8 | Athens, GA (USA) | 19.04.2008 | | 300m ind. | 34.56 | | New York, NY (USA) | 15.02.2014 | | 400m | 46.17 | | Athens, GA (USA) | 19.04.2008 | | 400m ind. | 45.94 | | Fayetteville, AR (USA) | 02.03.2008 | | 55mH ind. | 7.47 | | Gainesville, FL (USA) | 27.01.2007 | | 60mH ind. | 7.86 | | Champaign, IL (USA) | 24.01.2009 | | 110mH | 13.90 | +1.2 | Fayetteville, AR (USA) | 14.05.2006 | | 110mH (0.99) | 14.30 | -0.1 | White Plains, NY (USA) | 12.05.2005 | | 400mH | 48.46 | | Eugene, OR (USA) | 29.06.2008 | | 400mH | 48.46 | | Olympic Stadium, London (GBR) | 27.07.2013 | | 4x400m | 3:02.64 | | Philadelphia, PA (USA) | 24.04.2010 | | 4x400m ind. | 3:09.11 | | College Station, TX (USA) | 14.03.2009 |
| Season's BestsNo season's bests available. |
World RankingsNot ranked currently. | | Year | Result | Wind | Venue | Date |
|---|
| 2006 | 21.75 | 0.0 | Athens, GA (USA) | 22.04.2006 | | 2008 | 21.28 | +1.8 | Athens, GA (USA) | 19.04.2008 | | 2009 | 21.31 | +1.5 | Athens, GA (USA) | 09.05.2009 | | 2012 | 21.53 | +0.6 | Athens, GA (USA) | 14.04.2012 | | 2013 | 21.45 | 0.0 | Athens, GA (USA) | 13.04.2013 | | 2015 | 22.13 | -0.1 | Trenton, NJ (USA) | 25.04.2015 |
| Year | Result | Venue | Date |
|---|
| 2006 | 47.59 | Athens, GA (USA) | 21.04.2006 | | 2007 | 47.07 | Athens, GA (USA) | 14.04.2007 | | 2008 | 46.17 | Athens, GA (USA) | 19.04.2008 | | 2009 | 47.06 | Athens, GA (USA) | 18.04.2009 | | 2013 | 46.95 | Rovereto (ITA) | 03.09.2013 | | 2014 | 47.81 | Kortrijk (BEL) | 12.07.2014 |
| Year | Result | Wind | Venue | Date |
|---|
| 2006 | 13.90 | +1.2 | Fayetteville, AR (USA) | 14.05.2006 | | 2007 | 14.07 | 0.0 | Atlanta, GA (USA) | 31.03.2007 | | 2009 | 13.99 | +1.9 | Atlanta, GA (USA) | 02.04.2009 |
| Year | Result | Wind | Venue | Date |
|---|
| 2005 | 14.30 | -0.1 | White Plains, NY (USA) | 12.05.2005 |
| Year | Result | Venue | Date |
|---|
| 2005 | 50.84 | Greensboro, NC (USA) | 18.06.2005 | | 2006 | 50.20 | Greensboro, NC (USA) | 27.05.2006 | | 2007 | 49.25 | Tuscaloosa, AL (USA) | 13.05.2007 | | 2008 | 48.46 | Eugene, OR (USA) | 29.06.2008 | | 2009 | 48.86 | Gainesville, FL (USA) | 17.05.2009 | | 2010 | 48.65 | Stade Louis II, Monaco (MON) | 22.07.2010 | | 2011 | 48.58 | National Stadium, Kingston (JAM) | 07.05.2011 | | 2012 | 48.97 | Bislett Stadion, Oslo (NOR) | 07.06.2012 | | 2013 | 48.46 | Olympic Stadium, London (GBR) | 27.07.2013 | | 2014 | 49.53 | Mangueirão, Belém (BRA) | 10.08.2014 | | 2015 | 49.58 | Atlanta, GA (USA) | 01.08.2015 | | 2016 | 50.95 | Des Moines, IA (USA) | 29.04.2016 |
| Year | Result | Venue | Date |
|---|
| 2010 | 3:02.64 | Philadelphia, PA (USA) | 24.04.2010 | | 2011 | 3:05.99 | Philadelphia, PA (USA) | 30.04.2011 | | 2013 | 3:10.02 | Athens, GA (USA) | 16.03.2013 | | 2015 | 3:09.34 | Mersin (TUR) | 24.05.2015 |
|
