| Year |
Result |
Place |
Venue |
Date |
| 2007 |
1.44.54 |
14 |
Eugene, OR |
Jun 10 |
| 2008 |
1.44.10 |
10 |
Eugene, OR |
Jun 30 |
| 2009 |
1.43.83 |
11 |
Monaco |
Jul 28 |
| 2010 |
1.43.76 |
8 |
Rieti |
Aug 29 |
| 2011 |
1.43.83 |
6 |
Monaco |
Jul 22 |
| 2012 |
1:42.95 |
6 |
London |
Aug 09 |
| 2013 |
1:43.03 |
2 |
Bruxelles |
Sep 06 |
| 2015 |
1:44.53 |
19 |
Eugene, OR |
Jun 28 |
|
| International |
| Year |
Result |
Place |
| 2008 (World Indoor) |
1.46.48 |
6 |
| 2009 (World) |
1.45.71 |
6 |
| 2010 (World Cup) |
1.44.98 |
5 |
| 2011 (World) |
1:45.12 |
5 |
| 2012 (Olympic) |
1:42.95 |
5 |
| 2013 (World) |
1:43.55 |
2 |
| National |
| Year |
Result |
Place |
| 2006 (USA Champ.) |
1.45.83 |
2 |
| 2007 (USA Champ.) |
1.45.17 |
2 |
| 2008 (OT & USA Champ.) |
1.44.10 |
1 |
| 2009 (USA Champ.) |
1.45.86 |
1 |
| 2010 (USA Champ.) |
1.45.98 |
1 |
| 2011 (USA Champ.) |
1.44.17 |
1 |
| 2012 (OT & USA Champ.) |
1:43.92 |
1 |
| 2013 (USA Champ.) |
1:43.70 |
2 |
| 2015 (USA Champ.) |
1:44.53 |
1 |
|
|