 Maroussi was promoted back up to the Greek First Division for the 1998–99 season, and moved from the Spiros Louis Gym to the newly constructed Maroussi Saint Thomas Indoor Hall.Maroussi won the title of the European second-tier level FIBA Saporta Cup, during the 2000–01 season.That team was coached by Vangelis Alexandris, and it featured the inside-outside scoring tandem of Jimmy Oliver and Ashraf Amaya, as well as the rebounding skills of Vassil Evtimov.