Harvard University, Schauffhausen and Thalwil Rowing Club of Switzerland were the only non-British crews to win honors in the 135th Royal Henley Rowing Regatta, which ended today.

Harvard's heavyweight freshmen eight became the first crew from the university to win a trophy at Henley since 1976 by defeating Isis Boat Club of England in the final of the Ladies Challenge Plate for Eights. It was the fourth time in five years that an American crew had won the event here.

Harvard never trailed in its 2 1/3-length victory, which took 6 minutes 35 seconds -- the fastest time in the final for eight years.

Harvard, coxed by Devin-Ann Mahoney, one of the few women taking part at Henley, went ahead of Isis within the first 400 meters and gradually pulled ahead to lead by 1 3/4 lengths as it approached the sun-drenched set drinking champagne and Pimms in the Steward's Enclosure.

Isis had defeated Princeton University, the eastern U.S. lightweight sprint champion, in today's semifinal.

Schauffhausen retained the Stewards Cup for Coxless Fours with an easy victory over Cambridge University, but the three other non-British crews that made the finals all lost.