She made her
WTA Tour main-draw debut at the
2018 Japan Open, after receiving a wildcard for the women's doubles tournament, partnering
Hiroko Kuwata. At the
2019 Kunming Open, as a part of the ITF Circuit, Muramatsu recorded one of her biggest victory defeating top 100
Zhu Lin in the second round. She qualified for the main draw of the
2020 Thailand Open in Hua Hin but lost to
Barbara Haas. ==Grand Slam performance timelines==