U.S. Senior Women’s Championship?
Although most tournaments include men (and boys), there are occasional all-girls tournaments, female-only opens, and women’s invitational tournaments. The most prestigious invitational women’s tournaments held annually in the U.S. are the U.S. Women’s Chess Championship and the Cairns Cup, won its inaugural year (2019) by GM Valentina Gunina, age 29. The oldest, and lowest-rated, player in the 2019 Cairns Cup field was 40-year-old IM Anna Zatonskih. More 🡢