Usov won the silver medal in 4 x 400 metres relay at the 2004 World Indoor Championships, together with teammates Dmitriy Forshev, Boris Gorban and Andrey Rudnitskiy.
Usov took home the silver medal in the 4 x 400 metres relay event at the 2004 World Indoor Championships, alongside teammates Dmitriy Forshev, Boris Gorban, and Andrey Rudnitskiy.