[5][6][7][8] In preparation to compete in the combined event at the 2020 Summer Olympics (postponed to 2021), Nonaka competed at bouldering, lead climbing, and speed climbing events during the 2021 IFSC Climbing World Cup season, making finals across all disciplines and winning a bronze medal at the Speed World Cup in Salt Lake City.

[10] Nonaka followed up her Olympic medal with two straight second-place finishes in the overall rankings of the Boulder World Cup in 2022 and 2023.

In 2024, Nonaka placed second in the rankings of the combined bouldering and lead climbing event at the Olympic Qualifier Series, securing a spot for the combined event at the 2024 Summer Olympics in Paris.

[11] At the Olympics, she finished in ninth place in the semifinals of the combined event and did not move on to finals.

[12] Youth[14] Adult[14] On September 15, 2021, Nonaka redpointed Mr. Hyde 8c+ (5.14c) in Céüse, France.