is a retired Japanese badminton player. He has been a runner-up of the All England three times (2013, 2014 and 2016) along with his partner, Hiroyuki Endo. He competed at the 2010 and 2014 Asian Games.
Hayakawa won the first point in the 2014 Thomas Cup finals with Hiroyuki Endo beating 2004 World Junior Champions Hoon Thien How and Tan Boon Heong and lead the momentum for the Japanese team to claim the Thomas Cup for the first time, being the fourth nation to win Thomas cup after Indonesia, China and Malaysia.
On 31 March 2017, Hayakawa retired as a badminton player. He was appointed as the Japan national badminton team coach in 2017. Hayakawa stepped down as the national team coach in 2023 and became the men's team manager for BIPROGY.
Men's doubles
Men's doubles
Mixed doubles
The BWF Superseries, which was launched on 14 December 2006 and implemented in 2007, was a series of elite badminton tournaments, sanctioned by the Badminton World Federation (BWF). BWF Superseries levels were Superseries and Superseries Premier. A season of Superseries consisted of twelve tournaments around the world that had been introduced since 2011. Successful players were invited to the Superseries Finals, which were held at the end of each year.
Men's doubles
The BWF Grand Prix had two levels, the Grand Prix and Grand Prix Gold. It was a series of badminton tournaments sanctioned by the Badminton World Federation (BWF) and played between 2007 and 2017.
Men's doubles
Mixed doubles
Men's doubles
Mixed doubles