High Quality Content by WIKIPEDIA articles! 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 Von Zedtwitz Life Master Pairs is a six session open pairs event. It is restricted to Life Masters.The Life Master Pairs is a six-session event with two qualifying, two semi-final and two final sessions. It is restricted to Life Masters. At stake is the Von Zedtwitz Gold Cup. In 1930, Waldemar von Zedtwitz donated the Gold Cup, which was presented to the winners of the Life Master Pairs. The first winners: Von Zedtwitz and P. Hal Sims.