The rugged battle between the Oliveirense Basquetebol and the main powerhouses of Portuguese basketball was now underway, as the team faced big names, such as S.L.

Years later, with the signing of Henrique Vieira as a coach, the 3-point expert Brian Crabtree as player, Oliveirense was the most dominant team in Portuguese basketball.

This was taken by fans as an enormous disappointment as the Oliveirense squad had the biggest names in the Portuguese LCB, such as veteran Carlos Seixas, former NBA player Trevor Huffman, former Portugal Telecom player Doug Muse and rising stars Carlos Abreu and Gregory Stempin.

They won the League Cup 83-77 against Ovarense Aerosoles and at the end of the amazing season, disaster struck the Basketball section.

Due to the financial distress of União Desportiva Oliveirense, Eduardo Costa, president of the club, disbanded the basketball section, the main profit winner of the franchise.

Due to public disagreement and pressure by the most important basketball fans in Oliveirense, the youth teams were maintained.

On 15 June 2018, Oliveirense conquered their first league title ever after defeating Porto by 3–0 in the finals, thus completing a perfect performance in the playoffs with nine wins in nine matches.