The Grand National Teams (GNT) North American bridge championship is held at the summer American Contract Bridge League (ACBL) North American Bridge Championship (NABC).
The Grand National Teams is a team knockout event. The event is broken into four flights (Championship, A, B, C). The event is restricted to those who have qualified in their local ACBL district. No player on a flight A team can have more than 6,000 masterpoints. No player on a flight B team can have more than 2,500 masterpoints. No player on a flight C team can have more than 500 masterpoints, or be a Life Master.
All flights typically begin play on Wednesday, two days before the main NABC events.
The 2011 host district won Flights B and C in Toronto and thereby won the unofficial GNT Cup.[1]