Artland Dragons rode a strong first-half performance to victory over Antwerp Giants in Group L of the EuroChallenge Last 16 to all but secure a playoff berth.
Nathan Peavy had 21 points and Anthony King 16 as Artland prevailed, 81-71.
The Dragons have now won all four of their games in the Last 16 while Antwerp are 1-3.
Artland made nine of their 15 shots from long range, including three in the second quarter when they outscored Antwerp 24-15 to take a 41-30 lead.
The lead ballooned to 45-30 after baskets from Peavy and King at the start of the second half.
Artland's biggest advantage was 16 points in the third quarter.
Antwerp fought back, however, with a Michael Roll jumper reducing the arrears to 62-54 at the end of the third quarter.
Roll's three-ball at the beginning of the fourth left the visitors trailing only 62-57.
But Bryan Bailey answered with a shot from the arc for the hosts.
Roll once again gave Antwerp a chance when he drained another three to make it 70-65 midway through the quarter.
Antwerp then got the ball back after an errant Bailey pass.
But Roll handed possession ball to the hosts with a bad pass and the visitors fouled King, who made two free-throws to put them on their way to victory.
Stefan Koch, head coach Artland Dragons:
"I am very, very happy and satisfied. We reached the Quarter-Finals after only four games in this group. And this is the first time the club has reached that stage in a European competition. The guys can be really proud. But now we want to win this group to have the homecourt advantage in the next round. Antwerp execute very well on defense and understand the defensive rules. It was the tough game we expected, but I think we deserved to win."
Eddy Casteels, head coach Antwerp Giants:
"We came close at the end of the game but never closed the gap. I think we matched up very well with the Dragons, in a competitive way. I saw my team creating a lot more stuff against the Dragons than most other teams do."
Nathan Peavy, player Artland Dragons:
"It was a tough game, Antwerp are the best defensive team in the EuroChallenge. That made it really tough for us, they didn't let us catch a rhythm, but they missed some shots in the end."
Darnell Wilson, player Antwerp Giants:
"Both teams fought hard. We both have some really good guards and some really good big guys But we came short. We have two more games to reach the Quarter-Finals."