 Finishing second in the prelim pool and seventh overall, Shemarov's performance fell short to put him further into the quarterfinals.At the 2004 Summer Olympics in Athens, Shemarov qualified for his second Belarusian squad, as a 29-year-old, in the men's heavyweight class (96 kg) by rounding out the top ten spot and receiving a berth from the 2003 World Wrestling Championships in New York City, New York, United States.Shemarov delivered a more powerful effort from his previous Games by thrashing Turkey's Fatih Çakıroğlu and Mongolia's Tüvshintöriin Enkhtuyaa to secure a spot for the next round.