Personal Bests| Event | Result | Wind | Venue | Date |
|---|
| 55m ind. | 6.31 | | Blacksburg, VA (USA) | 11.01.2008 | | 60m ind. | 6.61 | | Albuquerque, NM (USA) | 26.02.2012 | | 60m ind. | 6.61 | | Albuquerque, NM (USA) | 26.02.2012 | | 100y | 9.51 | +0.8 | Mestský Stadion, Ostrava (CZE) | 26.06.2013 | | 100m | 10.04 | +1.5 | Greensboro, NC (USA) | 17.05.2015 | | 200m | 20.28 | +1.5 | Hayward Field, Eugene, OR (USA) | 29.06.2012 | | 200m ind. | 21.19 | | Blacksburg, VA (USA) | 07.03.2009 | | 300m ind. | 33.27 | | Blacksburg, VA (USA) | 24.01.2014 | | 400m | 47.75 | | Winston Salem, NC (USA) | 18.03.2011 | | 400m ind. | 48.83 | | Blacksburg, VA (USA) | 14.01.2012 | | 4x100m | 38.26 | | Stade Louis II, Monaco (MON) | 19.07.2013 | | 4x200m | 1:24.57 | | Philadelphia, PA (USA) | 23.04.2010 | | 4x400m | 3:10.40 | | Greensboro, NC (USA) | 03.04.2010 |
| Season's BestsNo season's bests available. |
World RankingsNot ranked currently. | | Year | Result | Wind | Venue | Date |
|---|
| 2005 | 10.80 | +0.9 | Greensboro, NC (USA) | 17.06.2005 | | 2007 | 10.45 | +1.6 | Winston Salem, NC (USA) | 24.03.2007 | | 2008 | 10.33 | +0.4 | Baltimore, MD (USA) | 03.05.2008 | | 2009 | 10.29 | +0.9 | Fayetteville, AR (USA) | 10.06.2009 | | 2010 | 10.27 | +1.1 | Greensboro, NC (USA) | 08.05.2010 | | 2011 | 10.14 | +1.8 | Greensboro, NC (USA) | 15.05.2011 | | 2012 | 10.07 | +0.4 | Port-of-Spain (TTO) | 19.05.2012 | | 2013 | 10.08 | +0.1 | Beijing (CHN) | 21.05.2013 | | 2014 | 10.27 | +0.6 | Clermont, FL (USA) | 31.05.2014 | | 2015 | 10.04 | +1.5 | Greensboro, NC (USA) | 17.05.2015 | | 2016 | 10.13 | +0.8 | Chula Vista, CA (USA) | 18.06.2016 |
| Year | Result | Wind | Venue | Date |
|---|
| 2005 | 21.79 | +0.7 | Greensboro, NC (USA) | 18.06.2005 | | 2007 | 21.48 | -2.1 | Baltimore, MD (USA) | 04.05.2007 | | 2008 | 20.79 | +1.6 | Tallahassee, FL (USA) | 31.05.2008 | | 2009 | 20.94 | -1.1 | Greensboro, NC (USA) | 01.05.2009 | | 2010 | 20.77 | -0.2 | Greensboro, NC (USA) | 28.05.2010 | | 2011 | 20.53 | +0.9 | Hayward Field, Eugene, OR (USA) | 26.06.2011 | | 2012 | 20.28 | +1.5 | Hayward Field, Eugene, OR (USA) | 29.06.2012 | | 2013 | 20.37 | +1.6 | Drake Stadium, Des Moines, IA (USA) | 23.06.2013 | | 2014 | 20.33 | -0.6 | Charlotte, NC (USA) | 13.06.2014 | | 2015 | 20.79 | -1.3 | Athens, GA (USA) | 09.05.2015 | | 2016 | 20.47 | +0.5 | Tempe, AZ (USA) | 09.04.2016 |
| Year | Result | Venue | Date |
|---|
| 2011 | 47.75 | Winston Salem, NC (USA) | 18.03.2011 | | 2015 | 47.76 | Charlotte, NC (USA) | 11.04.2015 |
| Year | Result | Venue | Date |
|---|
| 2010 | 39.64 | Greensboro, NC (USA) | 29.05.2010 | | 2011 | 39.17 | Guadalajara (MEX) | 28.10.2011 | | 2012 | 39.61 | Gainesville, FL (USA) | 07.04.2012 | | 2013 | 38.26 | Stade Louis II, Monaco (MON) | 19.07.2013 | | 2014 | 39.17 | Walnut, CA (USA) | 19.04.2014 | | 2016 | 39.02 | Walnut, CA (USA) | 16.04.2016 |
| Year | Result | Venue | Date |
|---|
| 2010 | 1:24.57 | Philadelphia, PA (USA) | 23.04.2010 |
| Year | Result | Venue | Date |
|---|
| 2010 | 3:10.40 | Greensboro, NC (USA) | 03.04.2010 |
|
