25-y.o. Korolev of Kazakhstan won over Serbian Dusan Lajovic with the score of 7:5, 6:3 in the second round of the tournament.
Freezing temperatures and heavy snowfall in the Balkans, that seriously affected traffic throughout the region, claimed a second victim on Sunday as a man died from cold in northern Serbia.
US Secretary of State Hillary Clinton begins a five-nation Balkans tour on Tuesday, seeking to push regional leaders to stick to existing agreements and enact the reforms needed to join the EU and NATO.
Muslims from Srebrenica, the site of Europe's worst atrocity since World War II, fear a Bosnian Serb win in Sunday's local polls would represent "the final step of a genocide".
EU president Herman Van Rompuy urged Bosnian leaders on Sunday to undertake reforms needed for the country's approach to the bloc, notably those abolishing political discrimination of Romas and Jews.
Leaders of Orthodox, Roman Catholic, Muslim and Jewish communities Sunday made a pressing call for peace from Bosnia which was the scene of the worst atrocities committed in Europe since World War II.
Ban Ki-moon begins a tour of the Balkans this week which will include the first visit by a UN chief to the site of the 1995 Srebrenica massacre and to Kosovo since it declared independence in 2008.
UN prosecutors open their case Monday against Bosnian Serb ex-military chief Ratko Mladic before the Yugoslav war crimes court, with their first witness to testify on how he survived a mass execution in 1992.