Northeastern University’s men’s heavyweight varsity crew was caught at the line by Great Britain’s No. 2 team, losing by just 6 feet in the final of the Ladies’ Plate — the second event for international eights — at the Henley Royal Regatta on the River Thames on Sunday. Both boats finished ahead of the previous course record. GB2’s winning time of 5:58 bettered the previous mark by five seconds. Northeastern’s crew topped the mark by nearly four seconds. The only American win of the day was already guaranteed, with Harvard ‘‘A’’ beating Harvard ‘‘B’’ in the final of the Visitors’ Cup for student and club coxless fours. The “A” boat was four rowers from the varsity eight coached by the late Harry Parker. The losing boat was four rowers from Harvard’s lightweight varsity. It marked the first time since 2002 that two Harvard boats faced each other in the regatta in a final. In the Temple Cup for student eights, the Dutch boat edged Harvard by 2¼ lengths, and the Union Boat Club from Boston lost in the final of the Britannia Cup for club coxed fours, losing by a length to London’s Taurus ‘‘A’’. In the final of the Grand Challenge Cup for international eights, the University of Washington lost by one length to the Great Britain national squad. GB1 won in a record time of 5:54.