The World Open Pairs Championship is a contract bridge competition initiated in 1962 and held as part of the World Bridge Series Championships every four years.
World meets commonly run for 15 days on a schedule whose details vary.
During qualifying sessions for the pairs, the Rosenblum teams were reduced from 32 to 8.
[1] United States pairs have won four of 14 tournaments through 2014, Brazil two, Poland two, and six other nations one each.
(The tournament is "open" in several respects including the registered nationalities of partners but no transnational pair has won any of the 42 medals.)