Personal Bests| Event | Result | Venue | Date |
|---|
| 800m | 1:57.75 | Hayward Field, Eugene, OR (USA) | 03.07.2010 | | 1500m | 4:00.13 | Stade Olympique de la Pontaise, Lausanne (SUI) | 08.07.2010 | | Mile | 4:28.50 | Philadelphia, PA (USA) | 27.04.2013 | | 3000m | 9:12.64 | Szczecin (POL) | 21.07.2012 | | 2000mSC | 6:41.68 | Nairobi (KEN) | 22.06.2001 | | 5 km Road | 16:12 | Dongio (SUI) | 28.03.2005 |
| Season's BestsNo season's bests available. |
World RankingsNot ranked currently. | | Year | Result | Venue | Date |
|---|
| 1996 | 2:03.10 | Nairobi (KEN) | 28.06.1996 | | 1997 | 2:01.60 | Nairobi (KEN) | 09.08.1997 | | 1998 | 2:03.88 | Nairobi (KEN) | 04.07.1998 | | 1999 | 2:04.7h | Nairobi (KEN) | 26.06.1999 | | 2000 | 2:01.26 | Linz (AUT) | 08.08.2000 | | 2004 | 2:05.63 | Lignano (ITA) | 06.06.2004 | | 2005 | 2:02.51 | Kalamata (GRE) | 30.05.2005 | | 2008 | 2:05.84 | Letzigrund, Zürich (SUI) | 29.08.2008 | | 2009 | 1:59.17 | Stadio Quercia, Rovereto (ITA) | 01.09.2009 | | 2010 | 1:57.75 | Hayward Field, Eugene, OR (USA) | 03.07.2010 | | 2011 | 2:02.73 | Nairobi (KEN) | 11.06.2011 | | 2013 | 2:02.43 | Nairobi (KEN) | 11.05.2013 | | 2014 | 2:09.6h | Nairobi (KEN) | 22.02.2014 | | 2015 | 2:07.2h | Nairobi (KEN) | 11.07.2015 |
| Year | Result | Venue | Date |
|---|
| 2000 | 4:23.78 | Knoxville, TN (USA) | 30.04.2000 | | 2004 | 4:04.76 | Rovereto (ITA) | 08.09.2004 | | 2005 | 4:02.31 | Olympic Stadium, Athina (GRE) | 14.06.2005 | | 2008 | 4:00.23 | National Stadium, Beijing (CHN) | 23.08.2008 | | 2009 | 4:01.64 | Letzigrund, Zürich (SUI) | 28.08.2009 | | 2010 | 4:00.13 | Stade Olympique de la Pontaise, Lausanne (SUI) | 08.07.2010 | | 2011 | 4:03.66 | Stadio Olimpico, Roma (ITA) | 26.05.2011 | | 2012 | 4:09.10 | Olympiastadion, Stockholm (SWE) | 17.08.2012 | | 2013 | 4:01.41 | Hayward Field, Eugene, OR (USA) | 01.06.2013 | | 2014 | 4:23.68 | Montreuil-sous-Bois (FRA) | 07.07.2014 | | 2015 | 4:22.82 | Turku (FIN) | 25.06.2015 | | 2017 | 4:47.7h | Nairobi (KEN) | 11.05.2017 |
| Year | Result | Venue | Date |
|---|
| 2013 | 4:28.50 | Philadelphia, PA (USA) | 27.04.2013 |
| Year | Result | Venue | Date |
|---|
| 2012 | 9:12.64 | Szczecin (POL) | 21.07.2012 |
| Year | Result | Venue | Date |
|---|
| 2010 | 16:54.5h | Eldoret (KEN) | 14.05.2010 | | 2014 | 17:02.9h | Kisii (KEN) | 12.04.2014 |
| Year | Result | Venue | Date |
|---|
| 2001 | 6:41.68 | Nairobi (KEN) | 22.06.2001 |
| Year | Result | Venue | Date |
|---|
| 2005 | 16:12 | Dongio (SUI) | 28.03.2005 |
No progression. |
