Ace of Diamond (ダイヤのA Daiya no A [Daiya no Ēsu], also known as Diamond no Ace) is a shōnen baseball manga written and illustrated by Yuji Terajima and published by Kodansha. It has been serialized by Weekly Shōnen Magazine since 2006. In 2008, Ace of Diamond received the Shogakukan Manga Awards for the shōnen category. In 2010, it won the Kodansha Manga Award for best shōnen manga. An anime adaptation was premiered on October 6, 2013.