Personal Bests| Event | Result | Venue | Date |
|---|
| 800m | 1:47.60 | Padova (ITA) | 30.08.2009 | | 800m ind. | 1:49.98 | Lincoln, NE (USA) | 16.02.2007 | | 1000m | 2:17.81 | Stockholm (SWE) | 31.07.2009 | | 1000m ind. | 2:23.41 | Lincoln, NE (USA) | 20.01.2007 | | 1500m | 3:35.33 | Icahn Stadium, New York, NY (USA) | 30.05.2009 | | 1500m ind. | 3:42.38 | National Indoor Arena, Birmingham (GBR) | 20.02.2010 | | Mile | 3:54.90 | Bislett Stadion, Oslo (NOR) | 04.06.2010 | | Mile ind. | 3:59.43 | Winston Salem, NC (USA) | 02.02.2013 | | 3000m | 8:00.05 | Luzern (SUI) | 08.08.2010 | | 3000m ind. | 8:07.50 | Lincoln, NE (USA) | 01.02.2008 | | 5000m ind. | 14:20.65 | Lincoln, NE (USA) | 26.01.2008 | | Mile Road | 4:10.0h | Boston, MA (USA) | 14.04.2013 |
| Season's BestsNo season's bests available. |
World RankingsNot ranked currently. | | Year | Result | Venue | Date |
|---|
| 2003 | 1:51.74 | Roodeport (RSA) | 12.02.2003 | | 2004 | 1:50.35 | Secunda (RSA) | 06.02.2004 | | 2005 | 1:49.57 | Lincoln, NE (USA) | 07.05.2005 | | 2007 | 1:50.04 | Palo Alto, CA (USA) | 31.03.2007 | | 2008 | 1:50.51 | Des Moines, IA (USA) | 26.04.2008 | | 2009 | 1:47.60 | Padova (ITA) | 30.08.2009 |
| Year | Result | Venue | Date |
|---|
| 2009 | 2:17.81 | Stockholm (SWE) | 31.07.2009 |
| Year | Result | Venue | Date |
|---|
| 2002 | 3:50.70 | Bellville (RSA) | 27.04.2002 | | 2003 | 3:49.45 | Germiston (RSA) | 08.03.2003 | | 2004 | 3:44.00 | Port Elizabeth (RSA) | 12.03.2004 | | 2005 | 3:43.62 | Palo Alto, CA (USA) | 26.03.2005 | | 2006 | 3:50.26 | Lincoln, NE (USA) | 15.04.2006 | | 2007 | 3:41.17 | Des Moines, IA (USA) | 26.05.2007 | | 2008 | 3:42.80 | Palo Alto, CA (USA) | 04.05.2008 | | 2009 | 3:35.33 | Icahn Stadium, New York, NY (USA) | 30.05.2009 | | 2010 | 3:35.97 | International Stadium, Gateshead (GBR) | 10.07.2010 | | 2011 | 3:41.16 | Durban (RSA) | 10.04.2011 | | 2012 | 3:36.56 | National Stadium, Kingston (JAM) | 05.05.2012 |
| Year | Result | Venue | Date |
|---|
| 2009 | 3:56.26 | Eugene, OR (USA) | 07.06.2009 | | 2010 | 3:54.90 | Bislett Stadion, Oslo (NOR) | 04.06.2010 | | 2011 | 3:58.33 | Des Moines, IA (USA) | 30.04.2011 | | 2012 | 3:56.90 | Lawrence, KS (USA) | 21.04.2012 | | 2013 | 3:59.06 | Des Moines, IA (USA) | 27.04.2013 | | 2014 | 4:04.45 | Austin, TX (USA) | 29.03.2014 |
| Year | Result | Venue | Date |
|---|
| 2009 | 8:08.30 | Pretoria (RSA) | 30.01.2009 | | 2010 | 8:00.05 | Luzern (SUI) | 08.08.2010 |
No progression. | Year | Result | Venue | Date |
|---|
| 2013 | 4:10.0h | Boston, MA (USA) | 14.04.2013 |
|
