Torneo del Litoral

The Torneo Regional del Litoral is an annual rugby union competition in Argentina. The tournament is contested by clubs from the Rosario, Santa Fe and Entre Ríos Unions, and is one of several regional competitions held in Argentina every year.
The Regional del Litoral runs from May to July.
Format.
The competition is open to all clubs from the Rosario, Santa Fe and Entre Ríos Unions, depending on their rankings the previous season. As founding member of the Buenos Aires Union (URBA), Rosario's oldest club (Atlético del Rosario) takes part in the Torneo de la URBA and does not participate in the Litoral tournament.
Ten teams participate in the first stage of the tournament (Top 10), with the eight best placed qualifying to play the "Zona Campeonato". and ten clubs playing the "Zona Reubicación", made up of the two teams worst placed in Top 10 plus other eight clubs.
The champion and runner-up of Torneo del Litoral qualify for the Nacional de Clubes, the main club competition of Argentina while the other best placed teams qualify for Torneo del Interior, the national club competition outside Buenos Aires.
Clubs.
Teams participating in 2010 Zona Campeonato: