Dexia Mons-Hainaut prevailed 83-68 BC Triumph on Tuesday and will next week host EclipseJet MyGuide Amsterdam with a spot in the EuroChallenge Quarter-Finals at stake.
Bryan Bracey and Elton Nesbitt each drilled four three-pointers for the Belgian team, who improved to 3-2 with the victory while Triumph (4-1) suffered their first defeat in Group L.
Bracey led Dexia with 20 points and Nesbitt 18.
Dexia had an old score to settle against their Triumph after blowing a huge lead late in the first game played between the sides and losing.
Chris Finch's team was in trouble late in the second quarter on Tuesday, however, trailing 44-33 with Ognjen Askrabic's 16 points leading the way for the visitors.
Three minutes into the third quarter and Dexia were still behind, 49-41, but then turned the game around.
Bracey made two free throws and after Kelvin Torbert split a pair at the charity stripe, Bracey nailed three consecutive three-balls for a 53-49 Dexia advantage.
The home side stayed in front the rest of the way, going in front by 18 in the fourth quarter.
Torbert weighed in with 14 points.
Askrabic scored just two in the second half but led Triumph with 18.