Margaux's mom enrolled her into gymnastics at the age of two for fun at United Gymnastix in Maryland. She has been training at the same gym her whole gymnastics career. Margaux is the 2015 Level 5 MD State Floor Exercise Champion, 2016 Level 7 MD State Uneven Bars Fourth Place, 2018/2019 Level 8 MD State Qualifier and 2019 Level 8 Regional Qualifier.

As a level 9 gymnast in 2019, Margaux placed second on uneven bars, her only event at the State Championships. She qualified to the Region 7 Championships where she finished fourth on uneven bars. Margaux qualified to the 2020 Level 9 MD State Championships but was unable to compete due to the COVID-19 pandemic. She did well in 2021 where she finished first on uneven bars, balance beam, floor exercise and in the all-around at the Level 9 State Championships. At the Region 7 Championships, Margaux finished fourth in the all-around and first on uneven bars. She qualified to the Level 9 Eastern Nationals, finishing third in the all-around, first on uneven bars and third on balance beam. Margaux was named to America's Top 100 on uneven bars in level 9.

In 2022, Margaux moved up to level 10. She placed eighth in the all-around and fourth on uneven bars at the State Championships. She qualified to the Region 7 Championships, finishing sixth on uneven bars.

Margaux is an honor student at Liberty High School and she will graduate in 2023. She is a member of National Honors Society, In Healthy Decisions Club, Friends for Life and Student Government Association (SGA). When Margaux isn't busy training 20 hours each week in the gym, she enjoys hanging out with her friends, shopping, playing with her dogs and going to the beach.