[2] Smith-Barnett then attended the University of Nevada, Las Vegas, where she studied kinesiology.

[2] From 2015 to 2019, Smith-Barnett attended the University of Nevada, Las Vegas and competed as a member of the UNLV Rebels track and field team.

[2][5] At the 2020 USA Indoor Track and Field Championships, Smith-Barnett finished 5th in the 60m, with a time of 7.21 seconds.

[7] At the 2022 USA Indoor Track and Field Championships, Smith-Barntt finished fourth in the 60m with a new personal best of 7.11 seconds.

[8] In March 2024 at the African Games, Smith-Barnett won a silver medal in the 4 × 100 m relay representing Liberia, [9] she set a new personal best over 100m on the 9 June 2024, running 10.99 at the Last Chance Sprint Series.