He faced Jarrell Miller at the K-1 World Grand Prix 2012 in Tokyo final 16 on October 14, 2012.
[1][2] Although he was able to land some powerful low kicks on Miller, the American's boxing ability was too much for Oborotov and he lost by unanimous decision after being floored in round one.
[7] He faced Emmanuel Payet for the WKN World Oriental Rules Light Heavyweight Title at Fight Night Saint Tropez in Saint-Tropez, France on August 4, 2013,[8] losing by decision.
[9] He lost to Peter Graham via an extension round majority decision in the semi-finals of a heavyweight tournament at Global FC 3 in Dubai, UAE on May 29, 2014.
[12] Wamba earned a cut above right eye in first round, but defeated Oborotov via a spectacular right head-kick.