Momkoonthod has a career-high singles ranking by the Women's Tennis Association (WTA) of 705, achieved on 16 May 2016.

She also has a career-high WTA doubles ranking of 682, reached on 23 July 2018.

Momkoonthod has won four doubles titles at tournaments of the ITF Women's Circuit.

Momkoonthod also represented Thailand in Fed Cup competition.

This biographical article relating to Thai tennis is a stub.