The victory, their fifth in seven matches, at the Universitario on Saturday left Tigres in fifth place in the Liga MX Apertura championship six points behind leaders UNAM Pumas.
Brazilian-born Ferretti stood in as Mexico coach for four matches following the sacking of Miguel Herrera for punching a reporter and won a playoff against the United States last weekend for a place at the World Cup warm-up tournament in Russia.
He handed the reins in midweek to Colombian Juan Carlos Osorio, who has taken charge until the 2018 World Cup, after ending his short tenure with a 1-0 friendly win over Panama on Tuesday.
Pumas beat Leon 3-1 away and top the standings with 28 points from 13 matches, four points ahead of America and Leon.
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Fourth-placed Toluca, a point further back, can climb to second if they beat Queretaro at home on Sunday.
America’s 2-0 win at Tijuana on Friday led to the dismissal of Argentine coach Ruben Romano by the border-town club on Saturday after they have gone five matches without a win and are three from bottom.
(Reporting by Carlos Calvo; Writing by Rex Gowar, editing by Alan Baldwin)
