Georgetown University's crew team won eight of 11 races, including the men's and women's varsity eight races, against Ithaca, Virginia and two Navy women's crews on the Potomac River yesterday at Thompson's Boat House.

The Hoyas also won the men's lightweight eight race, but Ithaca took the men's varsity four race.

The men's varsity eight race was the regatta's closest. Georgetown held a two-seat lead over the field after 500 yards and increased the margin to four seats midway through the 2,000-meter race, but Ithaca pulled even with 150 yards to go. The Hoyas sprinted to the end, however, for a two-seat victory. Georgetown finished at 6:35.5, Ithaca at 6:36.8 and Virginia at 6:42.6.

Georgetown's victory in the women's varsity eights was surprisingly easy. The Hoyas (7:11) won a two-length victory over Ithaca (7:18). Virginia, which would have challenged for first if not for several lane violations, was third at 7:20.1. Navy, which had been expected to be Georgetown's toughest competition, was fourth in 7:22.9.

Also at Thompson's Boat House, George Washington won six of seven events against Williams, but the Colonials' only loss was in the men's varsity eights.

"Williams is traditionally a fine crew," said George Washington Coach Paul Wilkins, whose men's varsity eight lost to the Coast Guard and Georgetown last weekend. "I'd hoped to finish finish better today, but losing to Williams is no shame."

Williams took an early lead and increased it to three lengths after 1,500 yards, which it maintained to the finish.

In Princeton, N.J., Navy, which split its crews among three sites, defeated the Tigers by four seats in the varsity eight race on Lake Carnegie. The Midshipmen also won the second varsity and novice eight races and Princeton took the third varsity eight race.

In Annapolis, Navy won all six events in a lightweight regatta against Columbia on the Severn River. The Midshipmen won the varsity eight race in 6:51, 11 seconds ahead of Columbia.

In the Cherry Blossom Regatta on Lake Occoquan, T.C. Williams High School opened the area scholastic crew season by winning eight of 11 races, including the boys and girls varsity eight competitions.

Fort Hunt defeated Williams by 2 1/2 lengths in the girls varsity four race and Washington-Lee finished one-two in the boys varsity fours.