BK Prostejov rolled to their fifth win in Group E and made sure KK Zagreb failed to win a game in the Regular Season of the EuroChallenge.
Having already secured a place in the Last 16, Prostejov set about making sure their home fans had something to smile about before Christmas and claimed an 86-77 victory.
Kyle Landry finished with 20 points and 14 rebounds for Prostejov.
Mario Kusan had 22 points and seven rebounds in defeat.
Zagreb threatened to pull off an upset in this game.
They only trailed 72-70 midway through the fourth quarter after a three-ball by Damir Rancic.
Benas Veikalas and Radoslaw Hyzy each made two free-throws and Jaromír Bohacík added a jumper to cap a 6-0 run that put the hosts in front to stay.
Prostejov hit 19 of 24 shots from the line and capitalized on 21 Zagreb turnovers - five by Kasun and four by Luka Zoric.