|Silver||2012 London||-60 kg|
|Silver||2009 Rotterdam||-60 kg|
|Bronze||2010 Tokyo||-60 kg|
|Silver||2011 Paris||-60 kg|
|Silver||2010 Guangzhou||-60 kg|
|Gold||2008 Jeju||-60 kg|
History[change | change source]
Hiroka won the silver medal in 2012 Summer Olympics at London, in the men's under 60 kg extra-lightweight judo.
References[change | change source]
- SportsReference.com (SR/Olympics), "Hiroaki Hiraoka"; retrieved 2012-7-29.
- Judoinside.com, "World Championships Rotterdam, 2009, Netherlands"; retrieved 2012-7-29.
- Judoinside.com, "World Championships Tokyo, 2010, Japan"; retrieved 2012-7-29.
- "Arsen Galstyan beats Hiroaki Hiraoka to claim gold," BBC. July 28, 2012; retrieved 2012-7-29.