She reached a career high as world number 9 in the women's doubles.

Together with Sapsiree Taerattanachai, she recorded as the first Thai women's doubles to medal at the World Championships.

[3] She competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil.

She also helps the national team won the silver medal in the 2018 Uber Cup; the bronze medals in the 2017 and 2019 Sudirman Cups; 2020 Uber Cup; 2018 Asian Games; 2016 Asia Women's Team and at the 2017 Asia Mixed Team Championships.

Supajirakul announced her retirement from the Thai national team through her social media account on 30 May 2023.