Turk Telekom survived a battle against host PBC CSKA Sofia to take their EuroCup record to 4-1 with a 79-75 win that went virtually to the buzzer.
CSKA, with only one win, traded the lead with the Turkish-based club for much of the game but in the end were undone by a seven-point run in the final quarter.
Trailing 41-38 in the second, Sofia went ahead with a three-pointer from Bradley Robert Traina and a lay-up by Deon Thomas.
Two free throws from Gregory Danielson continued the run saw the Bulgarian outfit lead 45-42 but lay-ups from Derrick Alston and Erwin Dudley saw the visitors retake control with a 46-45 advantage at the halfway mark.
CSKA's Traina had impressive figures of 18 points, four rebounds and two assists at the break.
In the third quarter it remained a close affair. A three-pointer from Dimitar Angelov brought the score back to 63-61, still in favour of Turk Telekom at the end of the quarter.
Traina scored the first point of the fourth quarter from the charity stripe and an Angelov lay-up then put Sofia in front.
The advantage proved shortlived with Tutku Acik's three-pointer establishing a 66-64 lead for Turk Telekom.
Angelov's two free throws restored parity but Dudley was equally accurate to take the Turk Telekom into a 68-66 lead.
Yordan Bozov tied it up with a jump shot before Haluk Yildirim, for the visitors, and Traina both drained baskets to make the score 70-70 with four minutes to play.
Then came the crucial phase of play. An Acik three-pointer and an Alston lay-up gave the Telekom the edge as they pulled out to 75-70.
CSKA took a time-out but Yildirim's lay-up took the Turks to 77-70.
Adrian Pledger's effort from outside the paint with 2:15 to play gave the CSKA a lifeline and Thomas and Bozov both converted free throws to bring it back to 77-75.
However, Dudley kept his head to convert two free throws for Turk Telecom to
clinch the win and take top-scoring honours with 25 points and six rebounds.
Jan-Hendrik Jagla's 13 points and nine boards, Alston's 12 points and eight rebounds and Acik's 14 points were all key to the win.
For CSKA, Traina poured in 23 points while Danielson's 11 boards were a game-high.