Rubuta ci gaba ga wannan sakin layi - A 1921, Marotti ya lashe gasar zakarun Italiya ta farko a Viareggio. A cikin 1922, ya ɗauki 16th (watau wuri na ƙarshe) a London (José Raúl Capablanca ya ci nasara), amma ya sami nasara mai kyau a kan Eugene Znosko-Borovsky. A cikin 1923, ya kasance Mataimakin-Champion a Naples (2nd ITA-ch). Marotti ya rasa wasa don taken zuwa Rosselli (+ 2 <unk> 6 = 5). A cikin 1923, ya ɗauki na 11 a Triest (Paul Johner ya ci nasara). A cikin 1927, ya ɗauki na 3 a Naples (Rosselli ya ci nasara). A cikin 1928, ya daidaita a matsayi na 4-5 a Perugia. A shekara ta 1928, ya buga wa Italiya wasa a gasar Olympics ta Chess ta 2
a Hague (+3 <unk>7 =2). A cikin 1929, ya ɗauki na 11 a Venice (Rudolf Pitschak ya ci nasara). A cikin 1930, ya ɗauki na 3 a Florence (Rosselli ya ci nasara).