Debbie Lytle made a driving bank shot with one second left to give Maryland a 69-68 victory over Seton Hall yesterday at Cole Field House in the quarterfinals of the AIAW Region 1-B tournament.

The victory advanced third-seeded Maryland (17-7) to the semifinals Friday and Saturday in the Palestra in Philadelphia. The Terrapins, who won the tournament last year, play the winner of today's Rutgers-Pitt game in the opening round.

Yesterday sixth-seeded Seton Hall (25-5) took its first lead, 68-67, on a layup by 5-foot-2 guard Phyllis Mangina with 12 seconds left. The Pirates trailed, 67-62, with 47 seconds remaining, but forced two straight turnovers in the last 30 seconds.

Maryland called time out with 10 seconds left. On the in-bounds play, Pam Reaves got the ball and passed it to Marcia Richardson near midcourt. The freshman guard found Lytle open in the right corner with five seconds left.

Lytle, who finished with a game-high 23 points and six assists, hesitated a moment and then put the ball on the floor. She took off about 12 feet from the basket on the right wing and banked in a soft one-hander. Seton Hall tried to call a timeout, but the referees ruled time had expired.

The victory avenged an earlier 65-64 defeat at Cole Field House, but this game was in general a distressing performance for Maryland. The 13th-ranked Terrapins continued a season-long pattern of bad ball handling, slow reaction and simple inattentiveness.

Maryland's sluggishness allowed Seton Hall to come back several times after the Terps would seem to open substantial leads. Mangina, who had a team-high 18 points, lead the Pirates' comeback in the second half with several long jumpers and aggressive defense.