Monroy has a career-high singles ranking by the Women's Tennis Association (WTA) of 619, achieved on 9 October 2023. She also has a career-high doubles ranking by the WTA of 561, achieved on 24 June 2024.
Monroy made her WTA main draw debut at the 2022 Copa Colsanitas, where she was given a wildcard into the singles main draw.[2][3]