Personal Bests| Event | Result | Wind | Venue | Date |
|---|
| 55m ind. | 7.20 | | Annapolis, MD (USA) | 09.12.2000 | | 60m ind. | 7.72 | | Lewisburg, PA (USA) | 06.12.2003 | | 200m | 23.17 | +1.4 | Kortrijk (BEL) | 11.07.2010 | | 200m ind. | 23.71 | | Birmingham, AL (USA) | 14.02.2014 | | 300m | 37.40 | | Atlanta, GA (USA) | 16.05.2014 | | 300m ind. | 36.85 | | Fayetteville, AR (USA) | 13.02.2009 | | 400m | 50.39 | | Olympic Stadium, Athina (GRE) | 13.07.2009 | | 400m ind. | 52.26 | | Boston, MA (USA) | 25.02.2007 | | 500m ind. | 1:09.06 | | New Haven, CT (USA) | 02.02.2007 | | 600y ind. | 1:19.50 | | MSG, New York, NY (USA) | 30.01.2009 | | 600m ind. | 1:31.37 | | Bloomington, IN (USA) | 25.01.2013 | | 800m | 2:07.07 | | Durham, NC (USA) | 08.04.2006 | | 4x200m | 1:32.45 | | Gainesville, FL (USA) | 05.04.2014 | | 4x400m | 3:23.08 | | Philadelphia, PA (USA) | 25.04.2009 | | 4x400m ind. | 3:28.63 | | Olimpiyskiy Stadion, Moskva (RUS) | 12.03.2006 | | Sprint Medley 1600m | 3:37.16 | | Philadelphia, PA (USA) | 29.04.2006 | | 4x400m | 3:15.68 | | Eugene, OR (USA) | 29.07.2016 |
| Season's BestsNo season's bests available. |
World RankingsNot ranked currently. | | Year | Result | Wind | Venue | Date |
|---|
| 2007 | 12.30 | -1.5 | Rakvere (EST) | 24.07.2007 |
| Year | Result | Wind | Venue | Date |
|---|
| 1999 | 25.35 | 0.0 | New Britain, CT (USA) | 08.06.1999 | | 2003 | 24.17 | | Townson (USA) | 10.05.2003 | | 2004 | 24.55 | | Chapel Hill, NC (USA) | 09.04.2004 | | 2006 | 24.00 | -0.1 | Gainesville, FL (USA) | 01.04.2006 | | 2007 | 23.54 | 0.0 | Princeton, NJ (USA) | 21.04.2007 | | 2009 | 23.34 | | Gainesville, FL (USA) | 04.04.2009 | | 2010 | 23.17 | +1.4 | Kortrijk (BEL) | 11.07.2010 | | 2011 | 23.31 | +0.9 | Auburn, AL (USA) | 16.04.2011 | | 2012 | 23.91 | +1.9 | Auburn, AL (USA) | 07.04.2012 | | 2013 | 23.59 | +0.4 | Kortrijk (BEL) | 14.07.2013 | | 2015 | 24.92 | -1.2 | Athens, GA (USA) | 09.05.2015 | | 2016 | 23.89 | -0.4 | Irvine, CA (USA) | 30.04.2016 |
| Year | Result | Venue | Date |
|---|
| 2014 | 37.40 | Atlanta, GA (USA) | 16.05.2014 | | 2016 | 37.81 | Houston, TX (USA) | 23.07.2016 |
| Year | Result | Venue | Date |
|---|
| 1999 | 57.02 | New Britain, CT (USA) | 08.06.1999 | | 2001 | 55.57 | Piscataway, NJ (USA) | 05.05.2001 | | 2002 | 55.01 | Princeton, NJ (USA) | 19.05.2002 | | 2003 | 53.50 | Storrs, CT (USA) | 04.05.2003 | | 2004 | 54.01 | New Haven, CT (USA) | 15.05.2004 | | 2006 | 51.95 | Gainesville, FL (USA) | 01.04.2006 | | 2007 | 51.40 | Torino (ITA) | 08.06.2007 | | 2008 | 51.63 | Fayetteville, AR (USA) | 02.05.2008 | | 2009 | 50.39 | Olympic Stadium, Athina (GRE) | 13.07.2009 | | 2010 | 51.16 | Drake Stadium, Des Moines, IA (USA) | 26.06.2010 | | 2011 | 51.76 | Uberlandia (BRA) | 18.05.2011 | | 2012 | 52.41 | Clemson, SC (USA) | 05.05.2012 | | 2013 | 51.62 | St-Martin (FRA) | 11.05.2013 | | 2014 | 52.25 | Houston, TX (USA) | 06.06.2014 | | 2015 | 54.33 | Athens, GA (USA) | 09.05.2015 | | 2016 | 51.72 | Norwalk, CA (USA) | 04.06.2016 | | 2017 | 56.79 | Culver City, CA (USA) | 27.05.2017 |
| Year | Result | Venue | Date |
|---|
| 2004 | 2:14.35 | Durham, NC (USA) | 03.04.2004 | | 2006 | 2:07.07 | Durham, NC (USA) | 08.04.2006 |
No progression. | Year | Result | Venue | Date |
|---|
| 2014 | 1:32.45 | Gainesville, FL (USA) | 05.04.2014 |
| Year | Result | Venue | Date |
|---|
| 2007 | 3:30.56 | Philadelphia, PA (USA) | 28.04.2007 | | 2008 | 3:27.98 | Philadelphia, PA (USA) | 26.04.2008 | | 2009 | 3:23.08 | Philadelphia, PA (USA) | 25.04.2009 | | 2011 | 3:23.17 | Philadelphia, PA (USA) | 30.04.2011 | | 2012 | 3:27.08 | Philadelphia, PA (USA) | 28.04.2012 | | 2014 | 3:23.84 | T. Robinson Stadium, Nassau (BAH) | 24.05.2014 |
| Year | Result | Venue | Date |
|---|
| 2006 | 3:37.16 | Philadelphia, PA (USA) | 29.04.2006 |
|
