Kosuke Kitajima
At the 2012 Olympics, Matsuda won two medals. He defended his bronze medal in the 200 meter butterfly and swam the butterfly leg for Japan's silver medal-winning relay team in the 4 × 100 meter medley relay with Ryosuke Irie, Kosuke Kitajima, and Takuro Fujii. He also swam the 100 meter butterfly, where he tied for sixteenth in the heats and subsequently lost a swim-off with Benjamin Starke of Germany, shutting him out of the semifinals.