|Date of birth||April 5, 1949|
|Place of birth||Carate Brianza, Italy|
|Height||1.84 m (6 ft 1⁄2 in)|
|1967–1969||Lilion Snia Varedo||45||(0)|
|* Senior club appearances and goals counted for the domestic league only|
Born in Carate Brianza, Rigamonti began playing football with Atalanta. He made his Serie A debut against Internazionale on 3 October 1971. He played for 6 seasons (61 games, 3 goals) in the Serie A for Atalanta B.C., Calcio Como, A.C. Milan and U.S. Cremonese.
For most of his A.C. Milan career he was the backup to Enrico Albertosi, until Albertosi was disqualified in the Totonero 1980 betting scandal, and Rigamonti became the first-choice goalkeeper for the last 10 games with Milan.
In a rare case for a goalkeeper, he was a penalty-kick taker with Calcio Como, scoring 6 goals, including 3 in the Serie A.
- Almanacco illustrato del calico 1979. Panini. 1979. p. 59.