[4] In 2016, she represented Grenada at the CARIFTA Games and earned a silver medal in the 400m, in the under-18 girls' category.

[5] She was also a part of the women's 4X400m Relay team which secured a silver medal at the 2016 OECS Track & Field Championships with teammates Meleni Rodney, Kenisha Pascal and Kanika Beckles.

She returned to Grenada in 2017 for the OECS athletics championship and was a part of two relay teams which earned a medal.

Amanda's 2018 season was highlighted by a second-place finish in the 400m finals at the NCAA Division II Outdoor Track & Field Championships in a personal best time of 52.90 seconds.

In July 2018 Amanda's school team, Saint Augustine's University, was named the NCAA Division II Women's Scholar Team of the Year for the 2017–18 outdoor track and field season by the U.S. Track & Field and Cross Country Coaches Association (USTFCCCA).