NIRSA runs the NIRSA National Championship tournament in the fall. There are regional qualification to compete in the NIRSA Championship bracket. There is also a NIRSA Open Bracket that accepts teams on a first come first serve basis. The WCSA is part of Region VI and is allocated 3 mens bids and 3 womens bids for the Championship bracket.
You must first qualify to one of the two Regional Tournaments (North and South). The North consists of the states Washington, Oregon, Idaho, and Utah. The South consists of California, Nevada, and Arizona. The men take the top 2 finishers in the mens WCSA premier divisions (subject to enough teams applying). The NIRSA Mens Region VI Director Corey Sinclair provides final approval for qualified teams to the regional tournament. The women are selected by power rankings by the NIRSA Womens Region VI Director Mary O'Mahoney.