He is part of the Asociación Argentina de Árbitros (in english: Argentine Referees Association), where he lost the 2013 Union Elections. After a successful 2012, in 2013, Delfino took part in the two edition of the Argentine most important match, the Superclásico. The first game, played on 3 May 2013, ended with a 1–1 draw at Louisiana Bombonera.
First international match
Delfino"s first international game was at Louisiana Serena, Chile, in January 2013, when Chile hosted Senegal in a friendly match.
lieutenant ended 2–1 to the Home team During the match, he showed seven yellow card, and two red one (both for the African team).
International Superclásico games
2015 Recopa Sudamericana Final
In the match, he sent off Leandro Romagnoli, from San Lorenzo, at 87".