48 teams (national domestic cup champions, plus the best qualified teams from the most important European national domestic leagues), entered a preliminary group stage, divided into eight groups of six teams each, and played a round-robin. The final standings were based on individual wins and defeats. In the case of a tie between two or more teams, after the group stage, the following criteria were used to decide the final classification: 1) number of wins in one-to-one games between the teams; 2) basket average between the teams; 3) general basket average within the group.
The top four teams from each group qualified for a 1/16 Final Playoff (X-pairings, home and away games), where the winners advanced further to 1/8 Finals, 1/4 Finals, and 1/2 Final.
The Final was played at a predetermined venue.
Country ranking[]
For the 1998-1999 FIBA Saporta Cup, the countries are allocated places according to their place on the FIBA country rankings, which takes into account their performance in European competitions from 1995–96 to 1997–98.[1]
*The second leg which was scheduled to be played in Podgorica, was cancelled due to the war situation in Yugoslavia. Although FIBA accepted a neutral venue (Thessaloniki, Greece) to play this game, the Yugoslav players couldn't get out of their country because of the military conflict, and therefore FIBA definitely cancelled this match and awarded a forfeit (20-0) to Benetton Treviso.