The Machlin Women's Swiss Teams North American bridge championship is held at the spring American Contract Bridge League (ACBL) North American Bridge Championship (NABC).
The event typically starts on the second Saturday of the NABC.
The event began in 1982 and was originally named the North American Women's Swiss Teams.
She was the sister of ACBL chief tournament director Al Sobel and the mother of Jerry Machlin, national tournament director.
No Women's Swiss champion team has defended its title successfully and it has not been common for pairs or single players to win consecutively.