Brynne's parents enrolled her into gymnastics when she was three years old in 2006. She was asked to join pre-team at Bull City Gymnastics in Durham, NC and has been there ever since. She has been training under coach Amanda Maness her whole gymnastics career. As a level 5 gymnast, Brynne finished in the top 10 in the all-around and fourth on uneven bars at the 2013 State Championships. Brynne skipped level 6 and quickly moved up to level 7 for the 2014 season. She placed second in the all-around with a 38.175, first on uneven bars and second on floor exercise at the State Championships. She made the North Carolina team for the Region 8 Championships where she helped the team to place first at the meet. Individually, Brynne finished sixth in the all-around with a 38.100, fourth on floor exercise and fifth on uneven bars.

As a level 8 gymnast in 2015, Brynne finished fifth in the all-around with a 37.400 and third on uneven bars and floor exercise. She qualified to the Region 8 Championships, finishing first in the all-around with a 38.025, first on vault and second on uneven bars. Brynne moved up to level 9 in 2016. At the State Championships, she placed eighth in the all-around and third on uneven bars. She did really well at the Region 8 Championships where she finished fourth in the all-around with a 37.075 and fifth on floor exercise. Brynne qualified to the Level 9 Eastern Nationals in Virginia Beach, VA, finishing seventh in the all-around with a 37.125 and fifth on uneven bars.

Brynne moved up to level 10 for the 2017 season. She finished seventh in the all-around with a 36.850 and sixth on uneven bars scoring a 9.425 at the State Championships. She qualified to the Region 8 Championships but she had a hamstring injury prior to the meet. She finished seventh on uneven bars with a 9.450 out of 30 gymnasts. In 2018, Brynne placed seventh in the all-around with a 37.350 and third on vault at the State Championships. She qualified to the Region 8 Championships.

In 2019, Brynne earned a bronze medal on vault at the State Championships. She qualified to the Junior Olympic Nationals after finishing eighth in the all-around with a 37.450 and eighth on floor exercise at the Region 3 Championships. In 2020, Brynne qualified to the Level 10 State Championships but was unable to compete due to COVID-19 pandemic.

Brynne trains 27 hours per week at Bull City Gymnastics in Durham, NC under coaches Amanda and Stephen Manness. She is working hard to become a successful level 10 gymnast and to qualify to the Junior Olympic Nationals the next few years. Brynne's long-term goal is to obtain a Division I college gymnastics scholarship.