Buenos Aires score hat-trick

Tricampeón: Pumas star Federico Serra sealed the deal with a late conversion

A last-gasp conversion handed Buenos Aires a third successive Campeonato Argentino title with a tense 10-9 defeat of Tucumán in Tucumán on Saturday.

Agustín Costa Repetto scored a last-minute try with Federico Serra adding the extras in front of 10,000 fans to secure a 34th national title for the Eagles.

Diego Mas scored three penalties for Tucumán, who have now been defeated in the last three finals by Buenos Aires.

Elsewhere, Mar del Plata were relegated to the second division after a 25-6 loss to Salta.

The scorers:

For Tucumán:

Pens: Mas 3

For Buenos Aires:

Try: Repetto

Con: Serra

Pen: Serra

The teams:

Tucumán: 15 Lucas Barrera Oro, 14 Sebastián Ponce, 13 Ezequiel Faralle, 12 Agustín Vallejo,11 Aníbal Terán, 10 Diego Mas, 9 Diego Ternavasio, 7 Nicolás Centurión, 8 Agustín Guzmán, 6 Ignacio Haustein, 5 Gabriel Pata Curello (c), 4 Carlos Casares, 3 Bruno Cuezzo, 2 Ramón Vidal, 1 Felipe Bettolli.

Replacements: 23 Juan Ávila, 16 Rafael Garrido, 18 Juan Pablo Lagarrigue, 19 Miguel Centurión, 20 Luis Castillo, 21 Nicolás Sánchez, 22 Santiago Rodríguez del Busto.

Buenos Aires: 15 Federico Serra, 14 Agustín Gosio, 13 Juan Ignacio Gauthier, 12 Hernán Senillosa, 11 Pablo Gómez Cora (c), 10 Santiago Fernández, 9 Francisco Albarracín, 8 Alejandro Abadie, 7 Alejandro Campos, 6 Facundo López, 5 Felipe Aranguren, 4 James Stuart, 3 Francisco Lecot, 2 Pablo Gambarini, 1 Gonzalo Begino.

Replacements: 16 Federico Sánchez, 17 Agustín Costa Repetto, 18 Nahuel Neyra, 19 Juan Pablo Mirenda, 20 Ramiro Dobal, 21 Benjamín Urdapilleta, 22 Francisco Bosch.

Referee: Javier Mancuso (Córdoba)