| Athletics |
2003 World Athletics Youth Championships
|
Sherbrooke |
 CAN |
400 m, Women |
🥇 |
 USA |
|
| Athletics |
2003 World Athletics Youth Championships
|
Sherbrooke |
CAN |
Medley Relay, Women |
🥇 |
USA |
|
| Athletics |
2003 Pan American Junior Athletics Championships
|
Bridgetown |
 BAR |
4 x 400 m Relay, Women |
🥇 |
USA |
|
| Athletics |
2004 World Athletics Junior Championships
|
Grosseto |
 ITA |
400 m, Women |
🥇 |
USA |
|
| Athletics |
2004 World Athletics Junior Championships
|
Grosseto |
ITA |
4 x 400 m Relay, Women |
🥇 |
USA |
|
| Athletics |
2005 Pan American Junior Athletics Championships
|
Windsor |
CAN |
4 x 400 m Relay, Women |
🥇 |
USA |
|
| Athletics |
2005 Pan American Junior Athletics Championships
|
Windsor |
CAN |
400 m, Women |
🥇 |
USA |
|
| Athletics |
2006 NACAC Athletics U23 Championships
|
Santo Domingo |
 DOM |
400 m, Women |
🥈 |
USA |
|
| Athletics |
2006 NACAC Athletics U23 Championships
|
Santo Domingo |
DOM |
4 x 400 m Relay, Women |
🥇 |
USA |
|
| Athletics |
2007 World Athletics Championships
|
Osaka |
 JPN |
4 x 400 m Relay, Women |
🥇 |
USA |
|
| Athletics |
2009 World Athletics Championships
|
Berlin |
 GER |
4 x 400 m Relay, Women |
🥇 |
USA |
|
| Athletics |
2010 World Athletics Indoor Championships
|
Doha |
 QAT |
4 x 400 m Relay, Women |
🥇 |
USA |
|
| Athletics |
2011 World Athletics Championships
|
Daegu |
 KOR |
4 x 400 m Relay, Women |
🥇 |
USA |
|
| Athletics |
2012 World Athletics Indoor Championships
|
İstanbul |
 TUR |
400 m, Women |
🥉 |
USA |
|
| Athletics |
2012 World Athletics Indoor Championships
|
İstanbul |
TUR |
4 x 400 m Relay, Women |
🥈 |
USA |
|
| Athletics |
2013 World Athletics Championships
|
Moskva |
 RUS |
4 x 400 m Relay, Women |
🥇 |
USA |
|
| Athletics |
2014 World Athletics Indoor Championships
|
Sopot |
 POL |
4 x 400 m Relay, Women |
🥇 |
USA |
|
| Athletics |
2014 World Athletics Relays
|
Nassau |
 BAH |
4 x 400 m Relay, Women |
🥇 |
USA |
|
| Athletics |
2015 World Athletics Relays
|
Nassau |
BAH |
4 x 400 m Relay, Women |
🥇 |
USA |
|
| Athletics |
2015 World Athletics Championships
|
Beijing |
 CHN |
4 x 400 m Relay, Women |
🥈 |
USA |
|
| Athletics |
2016 World Athletics Indoor Championships
|
Portland |
USA |
4 x 400 m Relay, Women |
🥇 |
USA |
|
| Athletics |
2017 World Athletics Relays
|
Nassau |
BAH |
4 x 400 m Relay, Women |
🥇 |
USA |
|
| Athletics |
2017 World Athletics Championships
|
London |
 GBR |
4 x 400 m Relay, Women |
🥇 |
USA |
|