Sorry to write in english, but I don't speak russian.
Looking at this page I am under the impression that it contains an error (again, I can't really understand what it says).
In 1920 Italo Santelli didn't take part in the Olympics. In 1900 he did (and he won a medal), in 1924 he was the coach of the hungarian team, but in 1920 he didn't take part (even though his son won a gold medal that year).
Other wiki pages in other languages contained an error, claiming that he won the 1920 gold medal, which of course is impossible due to his age at the time. Please make sure this error doesn't appear in this wiki!
I might have added mistakes while editing the page... please check it (and forgive me if I did any)