Byrne has achieved success domestically in the women's game, officiating in 5 Women's FA Cup Finals at Wembley Stadium; 2019[5]& 2024[6]as referee, 2017 as Assistant referee[7] and 2020[8] & 2023 as Fourth Official.
[9] She also took charge of the 2021 FA Women's League Cup final at Vicarage Road.
In October 2024, she was selected to represent UEFA at the 2024 FIFA U-17 Women's World Cup in Dominican Republic where she refereed 3 matches, including the opening game between Dominican Republic and Ecuador, and the quarter final between North Korea and Poland.
[15] Her brother is Adam Marriott, a Professional Footballer who played for Cambridge United F.C., Stevenage F.C., Lincoln City F.C.
and Boston United F.C.. She got married in 2017 to George Byrne, a Select Group 2 Assistant referee operating in the EFL Championship.