KK Buducnost defeated BG Göttingen for the second time this season on Tuesday but finished second to the German club in EuroChallenge Group A.
Goran Jeretin had 22 points for Buducnost in the 80-74 triumph which left both sides with 4-2 records.
BCM Gravelines Dunkerque prevailed 77-68 over Lokomotiv Kuban to also finish 4-2, but they finished third due to inferior goal differential and will not play in the Last 16.
Göttingen are playing in Europe for the first time while Buducnost are seasoned campaigners in the continental competitions and their winning tradition would have helped them on Tuesday.
They trailed by as many as seven points in the fourth quarter but held their nerve.
The game was tied at 74-74 with 49 seconds left when Buducnost's Vladimir Dragicevic made two free-throws.
After a missed three-pointer by Göttingen's Ben Jacobson, Dragicevic went to the other end and dunked for a four-point lead with 24 seconds to go.
Jeretin added two free-throws at the end for the six-point triumph.
Michael Meeks scored 16 points in defeat.
"We prepared well for this game. We knew it is very hard to play here. But we were very patient tonight and got the win here to go to the next round. We did a lot of Turnovers in the first half. That is why Göttingen was in control of the result. In the second half we had much less turnovers and kept playing great defense. One can say in the last 2-3 minutes we were the calm team."
Ivan Maras (player KK Buducnost m:tel):
"I want to congratulate Göttingen for this game. It is a great victory for us. We did a great job in defense. It is very important for us to reach the next round in the European competition."
John Patrick (head coach BG Göttingen):
"I am proud of the way my team played with only nine healthy players on the roster. My team really played hard. Even without Chris Oliver and Chris McNaughton we played well and had a chance to win. At the end, we lost control of the game. We did not play team basketball untill the end. I have to say Buducnost is one of the top notch teams in Europe."
Michael Meeks (player BG Göttingen):
"Coach Patrick is right with the things he said. We had Buducnost in the ropes. But in the end they moved the ball around well and knocked down some big shots. I am proud how we fought in this game despite the injuries of Chris Oliver and Chris McNaughton."