Mazda Stadium Hiroshima , also called New Hiroshima Municipal Stadium , is a baseball stadium in Minami-ku, Hiroshima, Japan. It is used primarily for baseball and is the home of the Hiroshima Toyo Carp of the Japanese Central League. The ballpark has a capacity of 32,000 people and opened on April 10, 2009. It replaced First Hiroshima Municipal Stadium and initially retained the old ballpark's official name. The stadium architecture is considered to be labeled as a retro-classic ballpark.