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 Machlin Women's Swiss Teams is a four-session Swiss Teams event with two qualifying and two final sessions. The event typically starts on the second Saturday of the NABC. The event is only open to female players. The event was dropped from the ACBL calendar effective 2018 and replaced with a two-day pairs event.