[2][3] Thouy won the gold medal in the women's team kumite event at the 2012 World Karate Championships held in Paris, France.

Two years later, at the 2014 World Karate Championships held in Bremen, Germany, she won the silver medal in the women's kumite 55 kg event.

[4] In 2015, Thouy won the gold medal in the women's kumite 55 kg event at the European Games held in Baku, Azerbaijan.

She won the gold medal in her event at the 2016 World University Karate Championships held in Braga, Portugal.

[6][7] In 2017, Thouy competed in the women's kumite 55 kg event at the World Games held in Wrocław, Poland.