For much of the summer, the H.D. Woodson girls basketball team has seemed invincible, trouncing most opponents in the Jelleff League. But in the league championship Friday, Seton shocked the Warriors, 55-54.

Earlier in the summer, the Warriors ousted Seton by 25 points.

In the boys title game, Walter Johnson nearly upset Cardozo before losing, 73-68, in overtime.

"It was something," said league director Bob Stowers of the girls title game. "It was probably the biggest upset that I've ever seen. {H.D. Woodson} just did not hustle. Seton came to win and they outhustled them."

Lena Patterson led Seton with 22 points that included five three-pointers. Walter Johnson's Eric Richardson was high scorer in the boys game with 20 points. Gilgeous Buries Tombs

The Tombs, composed chiefly of Georgetown underclassmen, was breezing through the Kenner League until it was overwhelmed by American University sophomore Brian Gilgeous last weekend.

He scored 46 points to lead Athlete's Foot to a 101-95 victory in the final regular season game. Both teams finished 9-1, but Athlete's Foot won the regular-season championship because of its victory in the head-to-head meeting.

The Tombs was led by Dikembe Mutombo (35 points).

The league playoffs begin tonight and will end with the title game Sunday at 7 p.m. . . .

Less than an hour after scoring 74 points to lead Tennis Haven to a 158-147 victory over Madness Connection in the Say No To Drugs league championship at H.D. Woodson High School, Atlanta Hawks guard John Battle was back on the court playing for the Runnin' Rebels in the Urban Coalition League at Dunbar High.

He only played a half, but he was still on the mark, scoring 16 points as the Rebels beat Bo's VIP's, 155-143, to improve to 7-0 in the league's Senior Division. . . .

The best game of the weekend in the Junior Division was Urban Coalition's 98-97 victory over Newport Prep as Melvin Norris had 22 points.