Hayakawa appeared in Senior competitions in the 2013 Season, she competed in the Grand Prix and World Cup Rhythmic Gymnastics Series. On June 5–8, Hayakawa competed with Japanese Team at the 2013 Asian Championships. At the 2013 World Cup Final in St.Petersburg, she placed 16th in the all-around ahead of American Jasmine Kerber. Hayakawa then competed at the 2013 World Championships in Kyiv, Ukraine finishing 40th in the qualifications, she did not advance into the finals.