Question: What was the outcome of the Tournament in Buenos Aires?
SQL: SELECT "Outcome" FROM "2-10713126-4" WHERE "Tournament" = 'Buenos Aires';

Question: In the match played with partner Andres Molteni, with the outcome of Winner, who was the opponent?
SQL: SELECT "Opponent" FROM "2-10713126-4" WHERE "Outcome" = 'Winner' AND "Partner" = 'Andres Molteni';