| Year | Competition | Venue | Position | Event | Notes |
Representing Barbados |
| 2002 |
Central American and Caribbean Junior Championships (U17) |
Bridgetown, Barbados |
14th (h) |
100 m |
11.63 |
| 11th (h) |
200 m |
22.79 |
| 2nd |
4 × 100 m |
42.79 |
| 2003 |
CARIFTA Games (U17) |
Port of Spain, Trinidad and Tobago |
3rd |
100 m |
10.92 |
| 4th |
200 m |
22.49 |
| 2nd |
4 × 100 m |
42.13 |
| World Youth Championships |
Sherbrooke, Canada |
19th (h) |
100 m |
10.851 |
| 16th (h) |
200 m |
22.031 |
| Pan American Junior Championships |
Bridgetown, Barbados |
9th (h) |
100 m |
11.03 |
| 2004 |
CARIFTA Games (U20) |
Hamilton, Bermuda |
5th |
100 m |
10.78 |
| 6th |
200 m |
21.48 |
| 3rd |
4 × 100 m |
41.80 |
| 2005 |
CARIFTA Games (U20) |
Bacolet, Trinidad and Tobago |
6th |
100 m |
10.75 |
| 4th |
200 m |
21.65 |
| Central American and Caribbean Championships |
Nassau, Bahamas |
25th (h) |
100 m |
10.98 |
| Pan American Junior Championships |
Windsor, Canada |
8th |
100 m |
10.73 |
| 4th |
200 m |
21.59 (w) |
| 2006 |
CARIFTA Games (U20) |
Les Abymes, Guadeloupe |
3rd |
100 m |
10.60 |
Central American and Caribbean Junior Championships (U20) |
Port of Spain, Trinidad and Tobago |
3rd |
100 m |
10.56 |
| 2nd |
200 m |
21.12 |
| 2nd |
4 × 100 m |
40.68 |
Central American and Caribbean Junior Championships |
Port of Spain, Trinidad and Tobago |
3rd |
100 m |
10.56 |
| 2nd |
200 m |
21.12 |
| World Junior Championships |
Beijing, China |
5th |
200 m |
21.25 |
| 2007 |
NACAC Championships |
San Salvador, El Salvador |
13th (h) |
200 m |
21.69 |
| Pan American Games |
Rio de Janeiro, Brazil |
14th (sf) |
200 m |
21.21 |
| 2008 |
Central American and Caribbean Championships |
Cali, Colombia |
9th (h) |
200 m |
20.941 |
| NACAC U23 Championships |
Toluca, Mexico |
5th |
100 m |
10.33 |
| 7th (h) |
200 m |
21.18 |
| 2009 |
Central American and Caribbean Championships |
Havana, Cuba |
9th (h) |
100 m |
10.41 |
| 8th (h) |
200 m |
21.07 |
| World Championships |
Berlin, Germany |
46th (h) |
100 m |
10.47 |
| 44th (h) |
200 m |
21.33 |
| 2011 |
Central American and Caribbean Championships |
Mayagüez, Puerto Rico |
5th |
100 m |
10.31 |
| World Championships |
Daegu, South Korea |
24th (h) |
100 m |
10.42 |
| Pan American Games |
Guadalajara, Mexico |
7th (sf) |
100 m |
10.37 |
| 2012 |
Olympic Games |
London, United Kingdom |
39th (h) |
100 m |
10.35 |
| 2013 |
Central American and Caribbean Championships |
Morelia, Mexico |
3rd |
100 m |
10.19 |
| World Championships |
Moscow, Russia |
21st (sf) |
100 m |
10.31 |
| 15th (h) |
4 × 100 m |
38.94 |
| 2014 |
IAAF World Relays |
Nassau, Bahamas |
16th (h) |
4 × 100 m |
39.27 |
| 4th |
4 × 200 m |
1:21.88 |
| Commonwealth Games |
Glasgow, United Kingdom |
8th |
100 m |
10.25 |
| 2015 |
IAAF World Relays |
Nassau, Bahamas |
2nd (B) |
4 × 100 m |
38.70 |
| 7th (h) |
4 × 200 m |
1:22.86 |
| Pan American Games |
Toronto, Canada |
2nd |
100 m |
10.07 |
| 4th |
4 × 100 m |
38.79 |
| NACAC Championships |
San José, Costa Rica |
2nd |
100 m |
10.11 |
| 3rd |
4 × 100 m |
38.55 |
| World Championships |
Beijing, China |
12th (sf) |
100 m |
10.04 |
| 2016 |
World Indoor Championships |
Portland, United States |
3rd |
60 m |
6.51 |
| Olympic Games |
Rio de Janeiro, Brazil |
32nd (h) |
100 m |
10.25 |
| 40th (h) |
200 m |
20.58 |
| 2017 |
IAAF World Relays |
Nassau, Bahamas |
2nd |
4 × 100 m |
39.18 |
| World Championships |
London, United Kingdom |
24th (h) |
100 m |
10.24 |
| 14th (h) |
4 × 100 m |
39.19 |
| 2018 |
Commonwealth Games |
Gold Coast, Australia |
20th (sf) |
100 m |
10.44 |
| 5th |
4 × 100 m |
39.04 |
1Did not start in the semifinals