1980–81 S.L. Benfica season the club. Benfica's league campaign started with seven consecutive wins, before a first loss with Porto in the Clássico. A few days later, Benfica wins their first Supertaça de Portugal. In the Cup Winners' Cup, Benfica eliminated Altay, Dinamo Zagreb and Malmö in the first three rounds. In late November, Benfica draws with Sporting and three weeks later, with Vitória de Setúbal, lapping the first half in first place with a three-point lead. In the following weeks, Benfica won three more matches before losing another point in a draw with Penafiel, which cut his lead to two points. They reacted
S.L. Benfica (basketball) the League Cup and the Super Cup but did not renew the championship as it lost 4–3 in the final to Porto. In the next season Benfica regained the title of Portuguese champion after defeating Porto in their home court Dragão Caixa (53–56) in the last best-of-five series game following a 2–2 playoff tie. Benfica retained the title the following season, having only lost two games, one in the regular season, and the other in the play-off final, which they won 3–1 against Académica de Coimbra, both defeats coming only in overtime. Overall Benfica won every title except the Cup,