Kohata was born in Hiroshima Prefecture on November 12, 1989. After graduating from Waseda University, she joined Urawa Reds in 2012. She was selected Best Young Player awards in 2012 season. She was also selected Best Eleven in 2014 season. She played 124 matches for the club in Nadeshiko League until 2018 season. She left the club end of 2018 season. In February 2019, she joined AS Harima Albion. She Retired end of 2020 season.