At the 2020 Summer Olympics, she won the first ever gold medal in the women's street competition.

[2][3][4] Nishiya competed at the 2019 Summer X Games in the women's street event where she scored 90.00 and won a silver medal.

[5] Nishiya competed at the 2021 Street Skateboarding World Championships where she scored 14.17 and won the silver medal.

[1][7] She competed in the women's street competition, where she scored 15.26 and won the gold medal.

[9] Nishiya competed at the X Games California 2023 in the women's street event where she scored 86.66 and won a bronze medal.