Amy Fuller hit a shot from the top of the key as the buzzer sounded to give the East Tennessee Stars an 88-87 overtime victory over the Vogues of Virginia in the playback final of the 16-and-under AAU/USA Junior Olympic Girls Basketball National Championships yesterday afternoon at Lake Braddock High School.

The Vogues, the Potomac Valley representative, who won eight straight games since a loss earlier in the week had sent them into the losers' bracket, forced the playback when they handed East Tennessee, the Southeastern entry, its first loss, 82-63, yesterday morning.

Metro, the Georgia entry, earned the 18-and-under national championship when it beat the Bryant Angels, representing Arkansas, 97-88, despite a 28-point performance from guard Juliet Jackson, who was named the division's tournament most valuable player.

For the better part of two games, the Vogues had seemed in control. But with the local team leading by one with eight seconds remaining, the Vogues' Penny Moore missed the first shot of a one-and-one and East Tennessee in-bounded to halfcourt and called timeout with three seconds left. Fuller ran off a double screen at the high post and hit her shot as the buzzer sounded.

"I got absolutely sick when I saw the shot go up," said Vogues Coach Denise Fiore, who also coaches George Washington.

In the morning game, Vogues center Christy Winters, an all-Met player from South Lakes High School who was tournament MVP in her division, scored 18 points. Penny Moore, an all-Met from Stuart High School, had 16 and Suzie Telleysh from Herndon High School 14.

In the playback, the Vogues built 12-point leads three times in the first half. Winters posted Pearl Moore and Sherelle Warren inside and scored on turnaround jump shots. Paula Schuler from Robinson High School and Karen Vadelund from Magruder High School hit from the outside as East Tennessee sloughed off on Winters.

Fiore removed Winters after her fourth foul, with 9:40 remaining. Although the center returned with 6:40 left, she was ineffective.

The Vogues led by 12 early in second half. East Tennessee took its first lead of the half, 70-68, with 3:34 left on Pearl Moore's power move to the basket. Three times the teams exchanged field goals. East Tennessee's Jennifer Azzi twice made one of two free throws and Penny Moore hit a pull-up jumper for the Vogues to cut it to 78-76 with 11 seconds left in regulation. Vadelund took a pass from Marian Dove and hit a fall-away jumper with two seconds left to force overtime.

In the five-minute overtime, East Tennessee took an 86-82 lead with 58 seconds left. Winters made a three-point play before Azzi lost the ball for East Tennessee. Winters' turnaround jumper gave the Vogues their final lead, 87-86.