| Year |
Result |
Place |
Venue |
Date |
| 2004 |
50.59 |
19 |
Athens |
Aug 21 |
| 2005 |
51.09 |
25 |
Helsinki |
Jul 25 |
| 2006 |
49.63 |
4 |
Shanghai |
Sep 23 |
| 2007 |
49.66 |
5 |
Osaka |
Aug 27 |
| 2008 |
50.11 |
9 |
Kingston |
Jun 29 |
| 2009 |
49.77 |
4 |
Berlin |
Aug 18 |
| 2010 |
50.04 |
6 |
Lausanne |
Jul 8 |
| 2011 |
50.05 |
7 |
Kingston (NS), JAM |
Jun 26 |
| 2012 |
49.78 |
8 |
Eugene, OR |
Jun 02 |
| 2013 |
50.01 |
8 |
Kingston, JAM |
Jun 23 |
| 2014 |
50.05 |
4 |
Kingston, JAM |
Jun 29 |
| 2015 |
50.47 |
12 |
Beijing |
Aug 25 |
| 2016 |
50.64 |
14 |
Kingston, JAM |
Jul 03 |
| 2017 |
50.14 |
10 |
Kingston (NS), JAM |
Jun 25 |
|
| Year |
Result |
Place |
| 2003 (PanAmer) |
52.83 |
6 |
| 2006 (World Indoor) |
51.82 |
5 |
| 2006 (World Cup) |
50.24 |
3 |
| 2006 (ComWealth) |
51.12 |
3 |
| 2007 (World) |
49.66 |
3 |
| 2009 (World) |
49.77 |
4 |
| 2010 (World Indoor) |
DNF |
N |
| 2011 (World) |
52.89 |
8 |
| 2012 (Olympic) |
50.11 |
5 |
| 2013 (World) |
51.49 |
8 |
| 2014 (World Cup) |
50.08 |
2 |
| 2014 (ComWealth) |
50.86 |
2 |
| 2015 (World) |
50.47 |
6 |
| 2017 (World) |
51.48 |
8 |
|
|