Career
He has a personal best throw of 21.51 metres (70571 ft). 2010
Sidorov narrowly missed making the final of the shot put at the World Indoor Championships in Athletics, finishing 7th in his qualifying group, and 14th overall with a putt of 19.88m
2011
Sidorov took his first senior international championship medal, when he threw 20.55m for bronze at the European Indoor Athletics Championships in Paris. In doing so, he overtook David Storl and Aleksandr Lobynya as the best European outdoor shot putter and best Russian outdoor shot putter respectively in 2011.