Year | Competition | Venue | Position | Event | Notes |
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Representing Saint Vincent and the Grenadines |
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2001 | CARIFTA Games (U17) | Bridgetown, Barbados | 7th | 200m | 25.38 (-4.0 m/s) |
8th | 400m | 59.66 |
World Youth Championships | Debrecen, Hungary | 13th (h)1 | 200m | 25.00 (+0.1 m/s) |
24th (h) | 400m | 57.54 |
2002 | CARIFTA Games (U17) | Nassau, Bahamas | 5th | 200m | 24.97 (-1.3 m/s) |
3rd | 400m | 56.23 |
— | Long jump | NM |
Central American and Caribbean Junior Championships (U17) | Bridgetown, Barbados | 5th | 200m | 25.30 (-1.0 m/s) |
2nd | 400m | 55.42 |
Central American and Caribbean Junior Championships (U20) | 7th | 4 × 100 m relay | 49.11 |
5th | 4 × 400 m relay | 4:02.33 |
2003 | CARIFTA Games (U20) | Port of Spain, Trinidad and Tobago | 6th | 400m | 54.34 |
7th | 800m | 2:22.80 |
World Youth Championships | Sherbrooke, Quebec, Canada | 36th (h) | 200m | 25.10 (+1.0 m/s) |
14th (sf) | 400m | 57.49 |
Pan American Junior Championships | Bridgetown, Barbados | 5th (h) | 200m | 24.70 (+0.4 m/s) |
4th (h) | 400m | 56.00 |
2004 | CARIFTA Games (U20) | Port of Spain, Trinidad and Tobago | 5th (h) | 200m | 24.49 w(+2.3 m/s) |
2nd | 400m | 53.83 |
Central American and Caribbean Junior Championships (U20) | Coatzacoalcos, México | 8th | 200m | 24.91 w(+2.7 m/s) |
1st | 400m | 53.93 |
World Junior Championships | Grosseto, Italy | 15th (sf) | 400m | 56.42 |
2005 | Central American and Caribbean Championships | Nassau, Bahamas | 9th (h) | 400 m | 53.43 |
Pan American Junior Championships | Windsor, Ontario, Canada | 4th | 400m | 53.28 |
World Championships | Helsinki, Finland | 6th (h) | 400 m | 54.45 |
2006 | Commonwealth Games | Melbourne, Australia | 17th (sf) | 400m | 53.19 |
NACAC Under-23 Championships | Santo Domingo, Dominican Republic | 4th | 400m | 52.95 |
Central American and Caribbean Games | Cartagena, Colombia | 3rd | 400m | 52.04 |
2007 | NACAC Championships | San Salvador, El Salvador | 3rd | 400m | 53.52 |
Pan American Games | Rio de Janeiro, Brazil | 10th (h) | 400m | 52.37 |
World Championships | Osaka, Japan | 28th (h) | 400 m | 52.51 |
2008 | Central American and Caribbean Championships | Cali, Colombia | 11th (h) | 400m | 52.68 A |
NACAC U-23 Championships | Toluca, México | 6th | 400m | 53.22 A |
Olympic Games | Beijing, China | 32nd (h) | 400 m | 52.87 |
2009 | World Championships | Berlin, Germany | 22nd (sf) | 400 m | 53.43 |
2011 | Central American and Caribbean Championships | Mayagüez, Puerto Rico | 16th (h) | 400m | 55.41 |
Pan American Games | Guadalajara, México | 12th (h) | 400m | 53.42 A |
2012 | World Indoor Championships | Istanbul, Turkey | 20th (h) | 400 m | 55.88 |
Olympic Games | London, United Kingdom | — | 400 m | DNF |
2013 | BVI Twilight Invitational | Road Town, British Virgin Islands |  | 200m | 23.40 (-0.8 m/s) |
 | 400m | 51.67 |
Central American and Caribbean Championships | Morelia, México | 1st | 200m | 23.00 A(-0.6 m/s) |
3rd | 400m | 52.81 A |
World Championships | Moscow, Russia | 33rd (h) | 200 m | 23.42 (+0.1 m/s) |
15th (sf) | 400 m | 51.64 |
2014 | World Indoor Championships | Sopot, Poland | 13th (h) | 400 m | 52.80 |
Commonwealth Games | Glasgow, United Kingdom | 5th (sf) | 200m | 23.58 (-0.2 m/s) |
5th | 400m | 52.78 |
Pan American Sports Festival | Ciudad de México, México | 4th | 400m | 51.94 A |
Central American and Caribbean Games | Xalapa, México | 6th | 400m | 54.21 A |
2015 | NACAC Championships | San José, Costa Rica | 4th | 400m | 52.51 |
World Championships | Beijing, China | 34th (h) | 200 m | 23.30 |
31st (h) | 400 m | 52.24 |
2016 | Olympic Games | Rio de Janeiro, Brazil | 34th (h) | 400 m | 52.45 |
2018 | World Indoor Championships | Birmingham, United Kingdom | 30th (h) | 400 m | 55.46 |
Commonwealth Games | Gold Coast, Australia | 19th (sf) | 400 m | 54.35 |
Central American and Caribbean Games | Barranquilla, Colombia | 10th (h) | 400 m | 54.78 |
NACAC Championships | Toronto, Canada | 7th | 400 m | 55.36 |