It ran from 14 September 2012 to 1 June 2013, and it was contested by thirty teams from eighteen countries.

There was no defending champion as Pro Recco renounced to the competition for disagreements with the FIN on the number of allowed foreign players in the Italian clubs' squads.

[1] Runner-up Primorje Rijeka, former champions Mladost Zagreb and Vasas Budapest, Italy's CN Posillipo and any team from Montenegro also declined to take part in the competition.

[3] The draw was held on 28 February 2013 in Rome, Italy.

[5] Tašmajdan Sports Center, Belgrade, Serbia Semi-finals Third place Final