The Yokohama Bay Stars announced on March 15 that they submitted plans to improve Yokohama Stadium to Yokohama City. The stadium will be celebrating its fortieth anniversary next year. It will be the main stadium for baseball and softball during the 2020 Olympics. The organization would like to renovate and expand the stadium in time for the event. Construction would begin around November 2017 and end some time in February 2020. The cost will be about 5.8 billion yen. Capacity will increase from 29,000 to 35,000.