North American Bridge Championships (NABC) are three annual bridge tournaments sponsored by the American Contract Bridge League (ACBL). The "Spring", "Summer", and "Fall" NABCs are usually scheduled in March, July, and November for about eleven days. They comprise both championship and side contests of different kinds in many classes of competition. Host cities in the United States and Canada are selected several years in advance.
The Von Zedtwitz Life Master Pairs national bridge championship is held at the summer American Contract Bridge League (ACBL) North American Bridge Championship (NABC).
The North American Pairs (NAP) is a set of annual North American championships for pairs contested over two days at the spring American Contract Bridge League (ACBL) North American Bridge Championships (NABC). The events are restricted to pairs that have qualified through local, regional and district levels within their ACBL Districts.
The Silodor Open Pairs national bridge championship is held at the spring American Contract Bridge League (ACBL) North American Bridge Championship (NABC).
The Leventritt Silver Ribbon Pairs national bridge championship is held at the spring American Contract Bridge League (ACBL) North American Bridge Championship (NABC).
The Whitehead Women's Pairs bridge championship is held at the spring American Contract Bridge League (ACBL) North American Bridge Championship (NABC).
The Lebhar IMP Pairs national bridge championship is held at the spring American Contract Bridge League (ACBL) North American Bridge Championship (NABC).
The Jacoby Open Swiss Teams national bridge championship is held at the spring American Contract Bridge League (ACBL) North American Bridge Championship (NABC).
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 Wernher Open Pairs national bridge championship is held at the summer American Contract Bridge League (ACBL) North American Bridge Championship (NABC).
The Fast Open Pairs national bridge championship is held at the summer American Contract Bridge League (ACBL) North American Bridge Championship (NABC).
The Roth Open Swiss Teams is a national bridge championship Swiss Teams event held at the summer American Contract Bridge League (ACBL) North American Bridge Championship (NABC).
The Nail Life Master Open Pairs is a North American bridge championship held at the fall American Contract Bridge League (ACBL) North American Bridge Championship (NABC).
The Smith Life Master Women's Pairs North American bridge championship is held at the fall American Contract Bridge League (ACBL) North American Bridge Championship (NABC).
The Manfield Non-Life Master Pairs national bridge championship is held at the fall American Contract Bridge League (ACBL) North American Bridge Championship (NABC).
The Edgar Kaplan Blue Ribbon Pairs is a national bridge championship held at the fall American Contract Bridge League (ACBL) North American Bridge Championship (NABC). The event is restricted to those that have won a blue ribbon qualification and is generally considered, with the Norman Kay Platinum Pairs, as one of the two hardest pairs event on the ACBL calendar.
The Mini-Blue Ribbon Pairs North American bridge championship is held at the Fall American Contract Bridge League (ACBL) North American Bridge Championship (NABC).
The Red Ribbon Pairs national bridge championship is held annually at the Summer American Contract Bridge League (ACBL) North American Bridge Championship (NABC). Prior to the 2015 Summer NABC, the Red Ribbon Pairs event was held at the Spring NABC.
The Norman Kay Platinum Pairs national bridge championship is held at the spring American Contract Bridge League (ACBL) North American Bridge Championship (NABC).
The 0-10,000 Fast Pairs or 10K Fast Pairs is held at the Fall American Contract Bridge League (ACBL) North American Bridge Championship (NABC).
