| Athletics |
2006 World Athletics Junior Championships |
Beijing |
 CHN |
100 m Hurdles, Women |
🥉 |
 USA |
as Tiffany Ofili |
| Athletics |
2007 NACAC Championships in Athletics |
San Salvador |
 ESA |
100 m Hurdles, Women |
🥈 |
USA |
as Tiffany Ofili |
| Athletics |
2008 NACAC Athletics U23 Championships |
Toluca |
 MEX |
100 m Hurdles, Women |
🥇 |
USA |
as Tiffany Ofili |
| Athletics |
2011 European Athletics Indoor Championships |
Paris |
 FRA |
60 m Hurdles, Women |
🥈 |
 GBR |
as Tiffany Ofili |
| Athletics |
2012 World Athletics Indoor Championships |
İstanbul |
 TUR |
60 m Hurdles, Women |
🥈 |
GBR |
|
| Athletics |
2013 World Athletics Championships |
Moskva |
 RUS |
100 m Hurdles, Women |
🥉 |
GBR |
|
| Athletics |
2014 World Athletics Indoor Championships |
Sopot |
 POL |
60 m Hurdles, Women |
🥉 |
GBR |
|
| Athletics |
2014 Commonwealth Games |
Glasgow |
 SCO |
100 m Hurdles, Women |
🥈 |
 ENG |
|
| Athletics |
2014 European Athletics Championships |
Zürich |
 SUI |
100 m Hurdles, Women |
🥇 |
GBR |
|
| Athletics |
2016 World Athletics Indoor Championships |
Portland |
USA |
60 m Hurdles, Women |
🥉 |
GBR |
|
| Athletics |
2016 European Athletics Championships |
Amsterdam |
 NED |
100 m Hurdles, Women |
🥉 |
GBR |
|
| Athletics |
2018 Commonwealth Games |
Gold Coast |
 AUS |
100 m Hurdles, Women |
6 |
ENG |
|
| Athletics |
2021 European Athletics Indoor Championships |
Toruń |
POL |
60 m Hurdles, Women |
🥉 |
GBR |
|