Silvio Calzolari was selected as a member of the Italian tug-of-war team after the 11 July 1920 trial among 19 athletes, supervised by Professor Teotimo Marchisio. The first and more difficult of the preliminaries was to tow a sled loaded with a 100 kg weight. All we know of Calzolari is that he was born in Firenze.
|1920 Summer||Antwerpen||Tug-Of-War||Men's Tug-Of-War||Italy||ITA||5|
|1920 Summer||Antwerpen||Tug-Of-War||Italy||ITA||Semi-Finals||Match #2||2||1920-08-18||NED 2, ITA 0|
|1920 Summer||Antwerpen||Tug-Of-War||Italy||ITA||Classification Round 3rd Place||Match #2||2||1920-08-20||USA , ITA|