Artiomov qualified for the men's 100 m breaststroke at the 2012 Summer Olympics in London by eclipsing a FINA B-standard entry time of 1:02.30 from the Ukrainian Championships in Dnipropetrovsk. He challenged seven other swimmers on the second heat, including Olympic veterans Malick Fall of Senegal, Vladislav Polyakov of Kazakhstan, and Jakob Jóhann Sveinsson of Iceland. Artiomov rounded out the field to last place by nine hundredths of a second (0.09) behind Syria's Azad Al-Barazi in 1:03.57. Artiomov failed to advance into the semifinals, as he placed fortieth overall in the preliminaries.