Port Blair, Jan 30: The RSC Swimming competition scheduled from Feb 5 to 7, 2014 and the RSC Open Sea Water Swimming competition from Ross Island to Aberdeen Jetty scheduled on Feb 8 have been postponed due to the boat tragedy occurred on Jan 26. The next date and time for the competition will be announced later, a communication from the Chairman, RSC, Shri K. Ganeshan said here today.