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A new format was announced for the regular season, where the teams will play in three Circuits. The playoff format was also changed: both the semifinals and the finals will be one-off series, instead of best-of-three series.
The 2013 MNBL Overall Champions Cup started on May 23, 2013 and concluded with Kelantan Warriors defeating Perak Farmcochem in the 2013 MNBL Overall Champions Cup Finals to claim the team's first ever MNBL title.