Igor Vuković from AOK Košutnjak was supposed to start in the biathlon sprint at the 2006 Military World Ski Championships in Andermatt , but did not compete. But he ran in the race over 15 kilometers freestyle and was 58th At the Serbian cross-country biathlon championships in Novi Sad, he won the title in front of Milanko Petrović in the same year . The next international championship was the Summer Biathlon European Championships 2008 Bansko , where the Serb finished 29th in the sprint, missing eight out of ten targets, and came 26th in the mass start race, hitting eight out of 20 targets. Also in Bansko, he made his only appearance in the IBU Cup in 2009 and finished 36th in the sprint, with which he also won points. He did not finish the chase race based on it after eight shooting errors in the first two attacks. At the 2011 Military World Ski Championships , the Sergeant of the Serbian Armed Forces came in 50th over 15 kilometers of freestyle and was 66th in the biathlon sprint. At the Serbian Cross Country Championships he was runner- up behind Dejan Popović in the middle distance. He finished the open Biathlon Balkan Cup in Trojan 2011 in eighth place in the sprint race.