T.C. Williams of Alexandra, Va., turned in the top American performance today in three of the four premier events at the Scholastic Rowing Association of American Regatta, but the older and often bigger Canadian crews muted the Titans' celebration on Noxontown Pond.

"It's like rowing against college freshmen." Williams Coach Jon Butler said after the Titans finished second to Canadian crews in the boy's and girls' senior and girls' junior eight races.

The Candians, with a 13th grade in their high schools, were able to take advantahe of the regatta's 19-year-old age limit as few American schools had rowers over 18.

The Williams girls' lightweight Light spotted Washington-Lee of Arlington, Va., an early lead before rowing to open water the second half of St. Andrew's School's 1,500-meter course. That was the only triumph for Northern Virginia schools. Stuart of Falls Church, Va., the only other entrant in the field, was third.

Ridley of St. Catharines, Ontario, moved ahead early in the boy's senior eight race, leaving Williams, Washington-Lee and Holy Spirit of Absecon, N.J., to battle for second. Williams took that spot about 500 meters into the race and and held off repeated challenges from Holy Spirit and a late move by Washington-Lee.

Ridley clocked 4:23.3 to 4:29.9 for the Titans, 4:32.3 for Holy Spirit and 4:324.4 for Washington-Lee.

The second-place finish proved vindication for the Titans, who finished seventh last week in the Stotesbury Cup final.

West Park of St. Catharines shot into a huge lead at the outset of the girls' senior eight competition and cruised home in 4:55.0. Williams shook loose from third-place Liverpool of New York and fourth-place Washington-Lee with about 500 meters left to take second easily in 5:13.5. Yorktown of Arlington, Va., was fifth.