 Bulgarelli was born in Portonovo di Medicina, Bologna.His entire Italian club career was spent with Bologna, for whom he also served as captain.He made 391 Serie A appearances for the club between 1958–59 and 1974–75, as well as 54 in the Coppa Italia, 3 in the European Cup, 2 in the Cup Winners' Cup, 20 in the Inter-Cities Fairs Cup, 4 in the Mitropa Cup, and 2 in the Anglo-Italian League Cup; he scored 58 goals in all competitions, 43 of which came in Serie A.