History
The Queens tournament is the women's counterpart of the men's ABC Masters.
Originally conducted by the Women's International Bowling Congress, it's open to qualified amateurs as well as top professionals. Although not formally a tour event, it's considered one of the major tournaments on the women's tour.
The Queens is a double-elimination match-play tournament. It's now conducted by the U. S. Bowling Congress and is known as the USBC Queens tournament.