Bosna Sarajevo, Banjalucka Pivovara and Siroki Hercegtisak won the opening games in A1 League play-off action on Saturday.
Bosna Sarajevo, who topped the A1 first phase after prevailing in 16 of their 18 games, defeated Hercegovac Bileca 89-80 while Banjalucka Pivovara travelled to Celik Zenica and pulled off an 84-70 upset.
Siroki Hercegtisak defended their homecourt, beating Leotar Trebinje 73-65. Banjalucka Pivovara and Siroki Hercegtisak didn't compete in the first phase of the A1.
The next round of games is on Wednesday when Banjalucka host Hercegovac Bileca, Celik Zenica entertain Siroki Hercegtisak and Bosna Sarajevo visit Leotar Trebinje.