Botas Spor saw off the challenge of Gran Canaria on Wednesday evening and advanced to the EuroCup Women Semi-Finals.
The Turkish club, with a three-point lead after last week's first leg, won the second, 62-55.
Botas appeared to throw a knockout punch after storming into a 25-6 lead with 1:02 to play in the opening quarter.
Nilay Kartaltepe had eight points in the first frame for the hosts and Quianna Chaney seven.
Gran Canaria then battled back to make a game of it.
The Spaniards, led by Lisa Lee's nine points in the first half, closed the gap to 38-27.
When Patricia Arguello sank two free-throws late in the third quarter, Gran Canaria only trailed 46-41.
A three-ball by Dandra Moss and jumper by Lee early in the fourth quarter knotted the game at 48-48 and suddenly the aggregate deficit was back to just three points.
Botas then made the game-winning plays.
Monica Wright hit a jumper for the hosts and after Vanessa Blé converted just one of two at the line for Gran Canaria, Noelle Kuin drilled a jump shot to make it 53-49 for Botas.
Kartaltepe collected her eighth assist on that Kuin basket.
Gran Canaria clawed the deficit back to 53-51 with two Astou Ndour free-throws, but Kartaltepe pulled up on a fast break and made a three-pointer to push the Botas advantage to 56-51.
Lee kept the visitors' hopes alive when she made a lay-up with 43 seconds to go to cut the Botas second-leg lead to 57-53, but Chaney followed with a three-point play at the other end to stretch the advantage back to seven.
Kartaltepe had a team-high 15 points and both Chaney and Wright 12.
Courtney Paris grabbed a game-high 13 rebounds and scored eight points.
Lee had 17 points and Moss 11.
Ndour ended up with 10 points and 10 boards.
Blé had a team-high 11 boards to go with her six points for Gran Canaria.