| Year Competition Venue Position Event Notes | |
| 1999 World Cross Country Championships Belfast, Northern Ireland 5th Long race - | |
| 1999 World Cross Country Championships Belfast, Northern Ireland 1st Team race - | |
| 2001 World Half Marathon Championships Bristol, United Kingdom 6th Half marathon - | |
| 2001 World Half Marathon Championships Bristol, United Kingdom 2nd Team race - | |
| 2003 Chicago Marathon Chicago, United States 1st Marathon 2:05:50 (fastest debut) | |
| 2004 London Marathon London, United Kingdom 1st Marathon - | |
| 2004 Chicago Marathon Chicago, United States 1st Marathon 2:06:16 (Year's fastest) | |
| 2005 London Marathon London, United Kingdom 10th Marathon - | |
| 2005 Chicago Marathon Chicago, United States 4th Marathon - | |
| 2006 London Marathon London, United Kingdom 10th Marathon - | |