sentences:  Due to the lack of wind the first week, the second round robin began without any lay days after the first.The first surprise of the second round robin was by China Team, who beat the favored BMW Oracle Racing team by 3 minutes and 15 seconds, the only team yet to achieve a win against BMW Oracle.The win was due to a delamination on the American team's headsail foil which caused the headsail to become partially detached making the sail totally ineffective for part of the race.