Personal Bests| Event | Result | Wind | Venue | Date |
|---|
| 60m ind. | 7.40 | | Azusa, CA (USA) | 10.02.2007 | | 100m | 11.68 | | Los Angeles, CA (USA) | 13.05.2006 | | 200m | 23.42 | +0.5 | Los Angeles, CA (USA) | 21.04.2007 | | 200m ind. | 24.22 | | Boston, MA (USA) | 06.02.2010 | | 300m ind. | 38.69 | | Blacksburg, VA (USA) | 29.01.2000 | | 400m | 52.14 | | San Diego, CA (USA) | 14.06.2009 | | 400m ind. | 54.32 | | Champaign, IL (USA) | 26.01.2002 | | 600m ind. | 1:32.12 | | Azusa, CA (USA) | 18.02.2006 | | 60mH ind. | 8.04 | | Azusa, CA (USA) | 10.02.2007 | | 100mH | 12.75 | +1.7 | Austin, TX (USA) | 11.06.2004 | | 400mH | 52.95 | | Sacramento, CA (USA) | 11.07.2004 | | 4x400m | 3:20.88 | | München (GER) | 08.08.2004 | | 4x400m ind. | 3:33.24 | | Fayetteville, AR (USA) | 15.03.2003 | | Sprint Medley 1600m | 3:37.81 | | Philadelphia, PA (USA) | 30.04.2011 |
| Season's BestsNo season's bests available. |
World RankingsNot ranked currently. | | Year | Result | Wind | Venue | Date |
|---|
| 2001 | 11.82 | +0.5 | Los Angeles, CA (USA) | 31.03.2001 | | 2003 | 11.91 | +0.9 | Los Angeles, CA (USA) | 01.03.2003 | | 2006 | 11.68 | | Los Angeles, CA (USA) | 13.05.2006 | | 2007 | 11.95 | -1.8 | Fullerton, CA (USA) | 10.03.2007 |
| Year | Result | Wind | Venue | Date |
|---|
| 2006 | 23.96 | 0.0 | Northridge, CA (USA) | 15.03.2006 | | 2007 | 23.42 | +0.5 | Los Angeles, CA (USA) | 21.04.2007 | | 2008 | 23.71 | +2.0 | Walnut, CA (USA) | 20.04.2008 | | 2009 | 23.81 | +1.3 | Palo Alto, CA (USA) | 28.03.2009 | | 2011 | 24.38 | +0.4 | Northridge, CA (USA) | 12.03.2011 |
| Year | Result | Venue | Date |
|---|
| 2005 | 54.77 | Modesto, CA (USA) | 07.05.2005 | | 2006 | 52.85 | Burnaby (CAN) | 08.06.2006 | | 2008 | 52.26 | Uberlandia (BRA) | 11.05.2008 | | 2009 | 52.14 | San Diego, CA (USA) | 14.06.2009 |
| Year | Result | Wind | Venue | Date |
|---|
| 1998 | 14.61 | +0.8 | Raleigh, NC (USA) | 19.06.1998 | | 1999 | 14.53 | -0.3 | Raleigh, NC (USA) | 11.06.1999 | | 2001 | 13.52 | +0.4 | Los Angeles, CA (USA) | 14.04.2001 | | 2002 | 13.36 | +1.4 | Baton Rouge, LA (USA) | 30.05.2002 | | 2003 | 13.09 | -0.4 | Sacramento, CA (USA) | 14.06.2003 | | 2004 | 12.75 | +1.7 | Austin, TX (USA) | 11.06.2004 | | 2005 | 13.60 | -1.4 | Palo Alto, CA (USA) | 30.05.2005 | | 2006 | 13.07 | +1.0 | Modesto, CA (USA) | 06.05.2006 | | 2007 | 12.90 | +1.8 | Eugene, OR (USA) | 27.05.2007 | | 2008 | 13.06 | -0.6 | Fortaleza (BRA) | 14.05.2008 | | 2009 | 13.33 | +1.3 | Palo Alto, CA (USA) | 28.03.2009 | | 2010 | 13.05 | +1.6 | Walnut, CA (USA) | 06.06.2010 |
| Year | Result | Venue | Date |
|---|
| 1998 | 58.61 | Philadelphia, PA (USA) | 23.04.1998 | | 1999 | 59.19 | Philadelphia, PA (USA) | 22.04.1999 | | 2000 | 56.82 | Denton, TX (USA) | 24.06.2000 | | 2001 | 56.02 | Berkeley, CA (USA) | 20.05.2001 | | 2002 | 55.71 | Baton Rouge, LA (USA) | 31.05.2002 | | 2003 | 54.24 | Sacramento, CA (USA) | 13.06.2003 | | 2004 | 52.95 | Sacramento, CA (USA) | 11.07.2004 | | 2005 | 54.72 | Stadio Olimpico, Roma (ITA) | 08.07.2005 | | 2006 | 53.90 | Indianapolis, IN (USA) | 25.06.2006 | | 2007 | 53.29 | Indianapolis, IN (USA) | 24.06.2007 | | 2008 | 53.58 | Stade Louis II, Monaco (MON) | 29.07.2008 | | 2009 | 54.19 | Mangueirão, Belém (BRA) | 24.05.2009 | | 2010 | 54.52 | Stade Louis II, Monaco (MON) | 22.07.2010 | | 2011 | 55.65 | Ponce (PUR) | 14.05.2011 |
| Year | Result | Venue | Date |
|---|
| 2004 | 3:20.88 | München (GER) | 08.08.2004 | | 2007 | 3:30.56 | Philadelphia, PA (USA) | 28.04.2007 | | 2008 | 3:27.98 | Philadelphia, PA (USA) | 26.04.2008 | | 2009 | 3:26.50 | Philadelphia, PA (USA) | 25.04.2009 |
| Year | Result | Venue | Date |
|---|
| 2010 | 3:38.53 | Philadelphia, PA (USA) | 24.04.2010 | | 2011 | 3:37.81 | Philadelphia, PA (USA) | 30.04.2011 |
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