Between Serie C2 and D Ferretti started his career at
Serie D teams (Italian fifth division). Ferretti had played for
Eccellenza Tuscany team Montemurlo in 2006–07 season (Italian sixth division). In August 2007 he joined a professional team
Canavese (
Serie C2). However, he only played once and returned to Serie D in mid-season. He had a high goal scoring record in Serie D for Sestri Levante and
Biellese (both from Serie D group A,
Piedmont, Aosta Valley and
Liguria region). He won the champion of Group A for Biellese and finished as the losing semi-finalists in the
Scudetto Dilettanti playoffs. However Biellese withdrew from
2009–10 Lega Pro Seconda Divisione. Despite the withdrew of Biellese, Ferretti did return to Italian fourth division again, for
Carrarese (the division had also renamed to Lega Pro Seconda Divisione). Ferretti only scored twice for the Tuscany team in the first six months.
Carpi In January 2010 Ferretti returned to Serie D again, for
Carpi. Ferretti scored 6 goals in group stage and 5 more in playoffs. Despite losing in the promotion playoffs (as Carpi only able to finish as the second in group stage), Carpi promoted back to professional league to fill the vacancies. Ferretti was the team joint-second-top-scorer (league+playoffs) (along with
Enrico Gherardi, 11 goals), just one goal behind
Stefano Menchini (12 goals, who scored nil in playoffs) Ferretti was the top-scorer of the team in the playoffs with 5 goals (ahead Gherardi with 4). Ferretti's 6 goals record in the league group stage also made him ranked the team fourth-scorer in regular season, behind Menchini (12 goals),
Anthony Taugourdeau (9 goals) and Gherardi (7 goals), however Ferretti only spent less than 6 months to score the goals.
Treviso In mid-2010 he left for another Serie D team
Treviso. The team finished as the champion of the Group C and promoted (group C consist part of
Veneto and
Friuli-Venezia Giulia). Treviso failed to become Serie D overall champion (
Scudetto Dilettanti) as the team was in the same group with
Cuneo (eventually the champion) and failed to qualify to the semi-finals as best second place team of the group stage of the playoffs. Ferretti scored a career high of 20 goals (in regular season) as team top-scorer, one goal ahead
Massimo Perna (who scored more in penalty) . Ferretti remained in Treviso for
2011–12 Lega Pro Seconda Divisione. Ferretti was the regular goalscorer of the team along with Perna. ==Honours==