The private Kasumigaseki Country Club in Saitama prefecture, which is set to host both men's and women's tournaments in July and August 2020, forbids women from playing on Sundays and excludes them from becoming full members.
Coates, who is head of the coordination commission which oversees preparations for the Games, said he had only become aware of the issue on his last visit to Tokyo at the end of last year and that organisers were now aware of the IOC's stance.
