2010–11 Liga Nacional de Básquet season
The 2010–11 Liga Nacional de Básquet season was the 27th season of the top professional basketball league in Argentina. The regular season started on 15 October 2010. Peñarol won their third title, defeating Atenas in the finals. Promotions and relegations. Torneo Nacional de Ascenso Champions from the previous season Monte Hermoso Básquet and runners-up Argentino de Junín were promoted, occupying the berths left by Quilmes and Central Entrerriano. Both teams would return to the Torneo Nacional de Ascenso at the end of the season after losing their respective relegation series. Regular season. First  stage. The first stage took place between 15 October and 3 December 2010. Teams were divided into two zones. The top three teams from each zone plus the best fourth team overall and a wildcard competed in the Torneo Súper 8 that took place in December. Torneo Súper 8. The seventh edition of Torneo Súper 8 took place on 16–20 December 2010 in the city of Formosa. Atenas won their first title, defeating Peñarol in the Final. Second stage. The second stage started on 6 December 2010. All 16 teams were ranked together. Each team carried over half of the  points obtained in the first stage. Playoffs. Championship playoffs. The Playoffs started on 6 April 2011 and ended on 5 June 2011. Peñarol defeated Atenas in the Finals. Relegation playoffs. The relegation series began on 8 April. Monte Hermoso Básquet and Argentino de Junín lost their respective series and were relegated to the Torneo Nacional de Ascenso.