Personal Bests| Event | Result | Venue | Date |
|---|
| 800m | 1:51.26 | Tempe, AZ (USA) | 30.03.2002 | | 1000m ind. | 2:25.13 | Lincoln, NE (USA) | 03.02.2001 | | 1500m | 3:42.2h | Göteborg (SWE) | 01.08.2007 | | Mile | 3:56.75 | New York, NY (USA) | 03.06.2006 | | Mile ind. | 4:00.67 | Fayetteville, AR (USA) | 10.02.2006 | | 3000m | 7:50.76 | Palo Alto, CA (USA) | 07.06.2003 | | 3000m ind. | 7:51.12 | Boston, MA (USA) | 27.01.2006 | | 2 Miles | 8:37.95 | Carson, CA (USA) | 21.05.2006 | | 5000m | 13:36.03 | Palo Alto, CA (USA) | 29.04.2007 | | 5000m ind. | 14:18.19 | Indianapolis, IN (USA) | 07.02.1999 | | 3000mSC | 8:15.69 | Boudewijnstadion, Bruxelles (BEL) | 14.09.2007 |
| Season's BestsNo season's bests available. |
World RankingsNot ranked currently. | | Year | Result | Venue | Date |
|---|
| 2002 | 1:51.26 | Tempe, AZ (USA) | 30.03.2002 |
| Year | Result | Venue | Date |
|---|
| 1999 | 3:45.04 | Palo Alto, CA (USA) | 15.05.1999 | | 2000 | 3:43.20 | Walnut, CA (USA) | 15.04.2000 | | 2001 | 3:42.36 | Palo Alto, CA (USA) | 13.05.2001 | | 2002 | 3:44.89 | Palo Alto, CA (USA) | 10.05.2002 | | 2004 | 3:42.79 | Lappeenranta (FIN) | 25.07.2004 | | 2005 | 3:47.20 | Naimette-Xhovémont (BEL) | 20.07.2005 | | 2006 | 3:43.08 | Santo Domingo (DOM) | 13.05.2006 | | 2007 | 3:42.2h | Göteborg (SWE) | 01.08.2007 | | 2008 | 3:48.59 | Los Angeles, CA (USA) | 07.06.2008 | | 2010 | 3:45.48 | Kingston (JAM) | 01.05.2010 | | 2012 | 3:52.85 | Tempe, AZ (USA) | 21.05.2012 |
| Year | Result | Venue | Date |
|---|
| 1998 | 4:10.46 | Sacramento, CA (USA) | 13.06.1998 | | 2001 | 4:04.05 | Walnut, CA (USA) | 22.04.2001 | | 2002 | 4:03.57 | Walnut, CA (USA) | 21.04.2002 | | 2003 | 4:02.01 | Santry (IRL) | 15.08.2003 | | 2004 | 3:59.78 | Eugene, OR (USA) | 19.06.2004 | | 2005 | 4:06.14 | Castleisland (IRL) | 18.08.2005 | | 2006 | 3:56.75 | New York, NY (USA) | 03.06.2006 | | 2007 | 4:09.41 | Icahn Stadium, New York, NY (USA) | 02.06.2007 | | 2009 | 4:08.49 | Toronto (CAN) | 11.06.2009 | | 2010 | 4:13.05 | Philadelphia, PA (USA) | 24.04.2010 | | 2011 | 4:09.79 | Des Moines, IA (USA) | 30.04.2011 |
| Year | Result | Venue | Date |
|---|
| 2003 | 7:50.76 | Palo Alto, CA (USA) | 07.06.2003 | | 2005 | 7:51.70 | New York, NY (USA) | 11.06.2005 | | 2007 | 7:53.15 | Carson, CA (USA) | 20.05.2007 | | 2008 | 8:17.88 | Lappeenranta (FIN) | 03.08.2008 |
| Year | Result | Venue | Date |
|---|
| 2006 | 8:37.95 | Carson, CA (USA) | 21.05.2006 |
| Year | Result | Venue | Date |
|---|
| 2002 | 13:49.08 | Palo Alto, CA (USA) | 03.05.2002 | | 2003 | 13:43.05 | Palo Alto, CA (USA) | 02.05.2003 | | 2004 | 13:46.04 | Palo Alto, CA (USA) | 30.04.2004 | | 2005 | 13:48.70 | Walnut, CA (USA) | 15.04.2005 | | 2007 | 13:36.03 | Palo Alto, CA (USA) | 29.04.2007 |
| Year | Result | Venue | Date |
|---|
| 1998 | 9:17.34 | Edwardsville, IL (USA) | 27.06.1998 | | 1999 | 8:41.21 | Philadelphia, PA (USA) | 22.04.1999 | | 2000 | 8:35.15 | Philadelphia, PA (USA) | 27.04.2000 | | 2001 | 8:26.45 | Eugene, OR (USA) | 22.06.2001 | | 2002 | 8:23.44 | Palo Alto, CA (USA) | 23.06.2002 | | 2003 | 8:22.32 | Stade de France, Paris-St-Denis (FRA) | 23.08.2003 | | 2004 | 8:23.60 | Sacramento, CA (USA) | 15.07.2004 | | 2005 | 8:17.87 | Heusden-Zolder (BEL) | 23.07.2005 | | 2006 | 8:22.70 | Stadio Olimpico, Roma (ITA) | 14.07.2006 | | 2007 | 8:15.69 | Boudewijnstadion, Bruxelles (BEL) | 14.09.2007 | | 2008 | 8:28.21 | Icahn Stadium, New York, NY (USA) | 31.05.2008 | | 2009 | 8:36.00 | Baie Mahault (FRA) | 01.05.2009 | | 2010 | 8:24.05 | Daegu (KOR) | 19.05.2010 | | 2011 | 8:28.52 | Shanghai Stadium, Shanghai (CHN) | 15.05.2011 | | 2012 | 8:37.17 | Hayward Field, Eugene, OR (USA) | 25.06.2012 |
| Year | Result | Venue | Date |
|---|
| 2010 | 24:02 | Chicago, IL (USA) | 21.03.2010 |
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